12/2017
Reference manual
support.industry.siemens.com
SIMATIC
S7-1200/S7-1500
Comparison list for programming languages
based on international mnemonics
Edition
A5E33284667-AF Page 1
Comparison list for S7-300, S7-400, S7-1200, S7-1500
Reference Manual
Legal information
Warning notice system
This manual includes notices you have to observe to ensure your personal safety and to prevent damage to property. The notices referring to your
personal safety are highlighted in the manual by a hazard alert symbol; notices referring only to property damage have no hazard alert symbol.
Depending on the degree of danger, warnings are displayed in a descending order as follows.
DANGER
indicates that death or severe personal injury will result if proper precautions are not taken.
WARNING
indicates that death or severe personal injury may result if proper precautions are not taken.
CAUTION
indicates that minor personal injury may result if proper precautions are not taken.
NOTICE
indicates that damage to property may result if proper precautions are not taken.
If more than one degree of danger is present, the warning notice representing the highest degree of danger will be used. A notice warning of injury
to persons with a hazard alert symbol may also include a warning relating to property damage.
A5E33284667-AA Page 2
Qualified personnel
The product/system described in this documentation may be operated only by
personnel qualified
for the specific task in accordance with the
relevant documentation, in particular its warning notices and safety instructions. Qualified personnel are those who, based on their training and
experience, are capable of identifying risks and avoiding potential hazards when working with these products/systems.
Proper use of SIMATIC products
Note the following:
WARNING
Siemens products may only be used for the applications described in the catalog and the associated technical documentation. If third-party
products and components are used, these have to be recommended or approved by Siemens. Proper transport, storage, installation, assembly,
commissioning, operation, and maintenance are required to ensure that the products operate safely and without any problems. The permitted
ambient conditions must be adhered to. Notes in the respective documentation must be observed.
Trademarks
All names identified by ® are registered trademarks of the
Siemens AG
. Any other names appearing in this document may be trademarks, the use
of which by third parties for their own purposes may breach owners' rights.
Disclaimer of liability
We have reviewed the contents of this publication to ensure consistency with the hardware and software described. However, si
nce deviations
cannot be precluded entirely, we cannot guarantee full consistency. The information in this publicatio
n is reviewed regularly and any necessary
corrections are included in subsequent editions.
Siemens AG
Digital Factory
P.O. Box 48 48
90026 NUREMBERG
Comparison list for S7-300, S7-400, S7-1200, S7-1500
12/2017
A5E33284667-AF Page 3
Contents of the comparison list
• Measuring program runtimes – see below.
• Load objects to the CPU: Which modifications and which modified blocks you load to the CPU in which operating
mode – next page.
• Overview, requirements, general conditions and legend for the comparison list (Page 7)
• Comparison list for S7-300, S7-400 (not H-Systems), S7-1200, S7-1500 including CPU 150xS Software
Controllers:
Which instructions and functions you can use for which controller family – as of Page 8.
• Instructions for SIMATIC Ident and SIMATIC Energy Suite – appendix.
Measuring program runtimes
The runtime of parts of the user program depends on many factors. A listing of runtimes of individual instructions in a table is
thus not possible.
The RUNTIME (runtime measuring) instruction is used to measure the runtime of the entire program, individual blocks or
command sequences. The runtime measurement begins with the first call of the RUNTIME instruction and ends with the
second call.
Use an OB priority >15 for runtime measurement. This ensures that "online monitoring" does not falsify the runtime. You can
find more detailed information in the SIMATIC STEP 7 online help. Enter "RUNTIME" in the search and select "S7-1200", "S7-
1500" or "S7-1500T" as validity identifier.
Programming examples in SCL:
"Common_Data".opt.Last_Cycle := RUNTIME(#Tag_Memory); //Start of the runtime measurement,
LReal
"speed test FB opt_DB"(ON_2:="i1",…);//Runtime measurement through RUNTIME
"Common_Data".opt.Last_Cycle := RUNTIME(#Tag_Memory); //End of the runtime measurement
The Last_Cycle tag contains the time that has passed from the preceding call to the current call of RUNTIME.
A5E33284667-AA Page 4
Load objects to the CPU
The table shows which modifications and which modified blocks you can download in which operating mode.
Very complex programs can prevent downloading in RUN mode. Solution approaches:
• Use a memory card with sufficient capacity.
• Select a CPU with sufficient work memory.
• Reduce the number of modified used blocks, constants, PLC tags or data types.
You can find information about the behavior of the F-CPU for fail-safe blocks in the SIMATIC Safety – Configuring and
Programming manual.
Modifications and blocks S7-300 S7-400 S7-1200
V4.0 or
higher
S7-1500 S7-1200
V1.0 - 2.1
S7-1200
V2.2 - V3.0
Modified properties of hardware
components
STOP
STOP,
constraints in
RUN
STOP STOP STOP STOP
Added hardware components
STOP
STOP,
constraints in
RUN
STOP STOP STOP STOP
New/revised text lists
(alarms)
RUN RUN - RUN - -
Load number of blocks
RUN (<17) RUN (<57) RUN (<21) RUN STOP RUN (<11)
Reset work memory (MRES)
STOP
(Reset)
STOP
(Reset)
STOP
(Reset)
STOP
(Reset)
STOP
(Reset)
STOP
(Reset)
New OB
RUN RUN STOP RUN STOP STOP
Modified OB: Code modifications,
modification of comments
RUN RUN RUN RUN STOP RUN
A5E33284667-AF Page 5
Modifications and blocks S7-300 S7-400 S7-1200
V4.0 or
higher
S7-1500 S7-1200
V1.0 - 2.1
S7-1200
V2.2 - V3.0
OB with modified properties
(e.g. cycle time change)
STOP RUN STOP RUN STOP STOP
Deleted OB
RUN RUN STOP RUN STOP STOP
New FB/FC/DB/PLC data type (UDT)
RUN RUN RUN RUN STOP RUN
Deleted FB/FC/DB/PLC data type
(UDT)
RUN RUN RUN RUN STOP RUN
Revised FB/FC: Code modification,
modification of comments
RUN RUN RUN RUN STOP RUN
Revised FB/FC: Interface change
STOP STOP RUN (Init) RUN (Init) STOP STOP
Modified DB (no memory reserve
configured): Name/type of tags
modified, tags added or deleted
RUN (Init) RUN (Init) RUN (Init) RUN (Init) STOP STOP
Modified DB (memory reserve
configured): New tags added
-- -- RUN RUN -- --
Modified PLC data type
(UDT)
STOP STOP RUN (Init) RUN (Init) STOP STOP
Modified PLC tags (added, deleted,
name or data type changed)
RUN RUN RUN RUN STOP STOP
Modified retentivity settings (bit
memory address area, DB area)
STOP
All objects
retentive
STOP STOP STOP STOP
A5E33284667-AA Page 6
Modifications and blocks S7-300 S7-400 S7-1200
V4.0 or
higher
S7-1500 S7-1200
V1.0 - 2.1
S7-1200
V2.2 - V3.0
Motion Control technology objects:
Changes to MC Servo cycle clock,
change from free
-running to cyclical
(and vice versa). Changes to the
hardware interface of the TO
-- -- -- STOP -- --
(init) means that the CPU overwrites the actual values of the DBs with start values during downloading.
Comparison list
Validity and general conditions
• SIMATIC STEP 7 version 15 or higher
• The contents of the S7-1500 column also apply to SIMATIC S7-1500 Software Controller CPU 150xS
• SIMATIC S7-1200 firmware 4.2 or higher. SIMATIC S7-1200 only supports LAD, FBD and SCL.
• SIMATIC S7-1500 firmware 2.5 or higher
• STL: Some instructions have to be called via CALL.
• The special features of the S7-400 H-Systems are not taken into consideration.
• Some system state lists (SSLs) for SIMATIC S7-300/400 contain similar information such as function calls with the
SIMATIC S7-1200/1500.
A5E33284667-AF Page 7
Structure of the comparison list
• Basic instructions
Instructions that you use often, such as bit logic operations, timers, counters, mathematical functions
• Extended instructions
Extended instructions for more possibilities such as date and time, interrupts, alarms, PROFIenergy
• Technological instructions (technology)
Technological functions, such as PID control, motion control
• Instructions for communication (communication)
Instructions for communication, such as S7 communication, Open User Communication
Legends
✔
Applicable
(
✔
)
Applicable with restrictions
nn
Not required, you can, for example, program with simple commands in SCL.
Grayed
out
We recommend that you do not use the grayed out instructions in S7-1200 or S7-1500, because these
instructions are not suitable for symbolic addressing or multiple instances. SIMATIC counters and timers are not
recommended because they do not have multiple instance capability.
Xyz
New instruction as of SIMATIC STEP 7 V14.
For this purpose, SIMATIC S7-1200 requires at least firmware 4.2 and SIMATIC S7-1500 at least firmware 2.0.
Xyz
New instruction as of SIMATIC STEP 7 V15.
For this purpose, SIMATIC S7-1200 requires at least firmware 4.2 and SIMATIC S7-1500 at least firmware 2.5.
Xyz
Also available as fail-safe instruction in the Safety optional package in LAD and FBD.
A5E33284877-AA Page 8
Extended instructions
Basic instructions
Communication
Technology
Instructions in the section "Basic instructions"
Instruction groups
Page
Instruction groups
Page
Instruction groups
Page
General
Bit logic operations
Safety functions
8
9
11
Comparator operations
Mathematical functions
Move
14
16
18
Word logic operations
Shift and rotate
Load and transfer
29
30
31
Times
Counter operationss
12
13
Conversion operations
Program control operations
22
25
Legacy 32
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
General
✔
✔
✔
✔
Insert network
✔
✔
nn
✔
✔
✔
✔
Insert empty box
✔
nn
nn
✔
✔
✔
✔
Open branch
✔
(
✔
✔
✔
✔
Close branch
✔
)
✔
✔
✔
✔
Insert input
-|
nn
nn
✔
✔
✔
✔
Invert Boolean result
-|NOT|-
-o|
NOT
A5E33284667-AF Page 9
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
Bit logic operations
✔
✔
✔
✔
AND logic operation
✔
&
O
&
✔
✔
✔
✔
OR logic operation
✔
>=1
O
OR
✔
✔
✔
✔
EXCLUSIVE OR logic operation
✔
X
X
XOR
✔
✔
✔
✔
Assignment
-( )-
-[=]
=
:=
✔
✔
Negate assignment
-(/)-
-[/=]
NOT
✔
✔
✔
✔
Reset output
-(R)
-[R]
R
nn
✔
✔
✔
✔
Set output
-(S)
-[S]
S
nn
(✔)
✔ ✔
Set bit field
S7-400: SFC 79 SET
SET_BF
nn
nn
(✔)
✔ ✔
Reset bit field
S7-400: SFC 89 RSET
RESET_BF nn nn
✔
✔
✔
✔
Set/reset flip-flop
SR
nn
nn
✔
✔
✔
✔
Reset/set flip-flop
RS
nn
nn
✔ ✔ ✔ ✔
Scan operand for positive signal edge
-|P|-
<Operand>;
FP;
nn
✔ ✔ ✔ ✔
Scan operand for negative signal edge
-|N|-
<Operand>;
FN;
nn
✔
✔
Set operand on positive signal edge
-(P)-
R_TRIG
✔
✔
Set operand on negative signal edge
-(N)-
F_TRIG
A5E33284667-AA Page 10
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
✔
✔
✔
✔
Scan Boolean result for positive signal edge
P_TRIG
FP
nn
✔
✔
✔
✔
Scan Boolean result for negative signal edge
N_TRIG
FN
nn
✔ ✔
Detect
positive signal edge
SCL: Programming with two instructions is
more effective:
posFlanke := signal and not
laststate;
laststate := signal;
R_TRIG
✔ ✔
Detect negative signal edge
SCL: Programming with two instructions is
more effective:
negFlanke := not
signal and not
laststate;
laststate := not signal;
F_TRIG
✔
✔
✔
✔
Normally open contact
-||-
nn
nn
nn
✔
✔
✔
✔
Normally closed contact
-|/|-
nn
nn
nn
A5E33284667-AF Page 11
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
Safety functions
✔ ✔ ✔ ✔
Only Safety: EMERGENCY STOP up to Stop
Category 1
ESTOP1
✔
✔
Only Safety: Two-hand monitoring
TWO_HAND
✔
✔
✔
✔
Only Safety: Two-hand monitoring with enable
TWO_H_EN
✔ ✔
Only Safety: parallel muting with two or four
muting sensors
MUTING
✔ ✔ ✔ ✔
Only Safety: parallel muting with two or four
muting sensors
MUT_P
✔ ✔ ✔ ✔
Only Safety: 1oo2 evaluation of two single-
channel encoders combined with a discrepancy
analysis
EV1oo2DI
✔
✔
✔
✔
Only Safety: Feedback monitoring
FDBACK
✔
✔
✔
✔
Only Safety: Protective door monitoring.
SFDOOR
✔ ✔ ✔ ✔
Only Safety: Acknowledgment for simultaneous
reintegration of all
F
-I/O/channels of the F-I/O of an F-runtime
group after communication errors
or F-I/O/channel errors
ACK_GL
A5E33284667-AA Page 12
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
Times
IEC timers
IEC timers are multi-instance capable.
✔
✔
✔
✔
Generate pulse
TP
TP
✔
✔
✔
✔
Generate on-delay
TON
TON
✔
✔
✔
✔
Generate off-delay
TOF
TOF
✔
✔
Time accumulator
TONR
✔
✔
Time accumulator (start timer)
-(TONR)-
-[TONR]-
nn
nn
✔
✔
Reset timer
-(RT)-
-[RT]-
RESET_TIMER
✔
✔
Load time duration
-(PT)-
-[PT]-
PRESET_TIMER
✔
✔
Generate pulse
-(TP)-
-[TP]-
nn
TP
✔
✔
Start on-delay timer
-(TON)-
-[TON]-
SD
S_ODT
✔
✔
Start off-delay timer
-(TOF)-
-[TOF]-
SF
S_OFFDT
SIMATIC timers legacy
✔
✔
✔
Assign pulse timer parameters and start
S_PULSE
nn
S_PULSE
✔ ✔ ✔
Assign extended pulse timer parameters and
start
S_PEXT
nn
S_PEXT
✔
✔
✔
Assign on-delay timer parameters and start
S_ODT
nn
S_ODT
✔ ✔ ✔
Assign retentive on-delay timer parameters and
start
S_ODTS
nn
S_ODTS
✔
✔
✔
Assign off-delay timer parameters and start
S_OFFDT
nn
S_OFFDT
A5E33284667-AF Page 13
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
✔
✔
✔
Start pulse timer
-(SP)
-[SP]
SP
nn
✔
✔
✔
Start extended pulse timer
-(SD)
-[SD]
SD
nn
✔
✔
✔
Enable timer
FR
nn
✔
✔
✔
Load timer value
L
nn
✔
✔
✔
Load BCD-coded timer value
LC
nn
✔
✔
✔
Reset timer
-(R)
-[R]
R
nn
✔
✔
✔
Start off-delay timer
-(SF)
-[SF]
SF
nn
✔
✔
✔
Start on-delay timer
-(SD)
-[SD]
SD
nn
✔
✔
✔
Start retentive on-delay timer
-(SS)
-[SS]
SS
nn
Counters
IEC counters
IEC counters are multi-instance capable.
✔
✔
✔
✔
Count up
CTU
CTU
✔
✔
✔
✔
Count down
CTD
CTD
✔
✔
✔
✔
Count up and down
CTUD
CTUD
SIMATIC counters legacy
✔
✔
✔
Assign parameters and count up
S_CU
nn
S_CU
✔
✔
✔
Assign parameters and count down
S_CD
nn
S_CD
✔
✔
✔
Assign parameters and count up/down
S_CUD
nn
S_CUD
✔
✔
✔
Set initial counter value
-(SC)
-[SC]
nn
nn
A5E33284667-AA Page 14
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
✔
✔
✔
Count up
-(CU)
-[CU]
CU
nn
✔
✔
✔
Count down
-(CD)
-[CD]
CD
nn
✔
✔
✔
Enable counter
FR
nn
✔
✔
✔
Load counter value
L
nn
✔
✔
✔
Load BCD-coded counter value
LC
nn
✔
✔
✔
Reset counter
R
nn
✔
✔
✔
Set counter
S
nn
Comparator operations
✔
✔
✔
✔
Equal
CMP ==
== I/D/R
=
✔
✔
✔
✔
Not equal
CMP <>
<> I/D/R
<>
✔
✔
✔
✔
Greater than or equal
CMP >=
>= I/D/R
>=
✔
✔
✔
✔
Less than or equal
CMP <=
<= I/D/R
<=
✔
✔
✔
✔
Greater than
CMP >
> I/D/R
>
✔
✔
✔
✔
Less than
CMP <
< I/D/R
<
✔
✔
Value within range
IN_RANGE
nn
✔
✔
Value outside range
OUT_RANGE
nn
A5E33284667-AF Page 15
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
✔
✔
Check validity
-|OK|-
nn
✔
✔
Check invalidity
-|NOT_OK|-
nn
Variant
✔
✔
Check data type of a VARIANT tag
TypeOf
✔ ✔
Scan data type of an ARRAY element of a
VARIANT tag
TypeOfElements
✔ ✔
Compare data type for EQUAL with the data
type of a tag
EQ_Type
*)
✔ ✔
Compare data type of an ARRAY element for
EQUAL with the data type of a tag
EQ_ElemType *)
✔ ✔
With a tag of type DB_ANY, compare the data
type of an indirectly addressed DB with a data
type for EQUAL.
Identify any data block with DB_ANY. You then
have the option of
accessing a data block that
is not yet available during programming.
EQ_TypeOfDB:
*)
✔ ✔
Compare data type for UNEQUAL with the data
type of a tag
NE_Type *)
✔ ✔
Compare data type of an ARRAY element for
UNEQUAL with the data type of a tag
NE_ElemType
*)
A5E33284667-AA Page 16
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
✔ ✔
With a tag of TYPE DB_ANY, compare the
data type of an indirectly addressed DB with a
data type for EQUAL.
NE_TypeOfDB: *)
✔
✔
Check for EQUALS NULL pointer
IS_NULL
*)
✔
✔
Check for UNEQUALS NULL pointer
NOT_NULL
*)
*) Application examples for SCL:
IF TypeOf(...) = INT THEN ... // corresponds to EQ_Type
IF TypeOfElements(...) = INT THEN ... // corresponds to EQ_ElemType
IF TypeOfDB(...) = INT THEN ... // corresponds to EQ_TypeOfDB
IF ... <> NULL THEN ... // corresponds t
o NOT_NULL
Instead of "=", you can also use other operators, e.g.: "<>".
Instead of "INT", you can also use any other data types or data types that you have defined, e.g.: "REAL", "Recipe".
✔
✔
Check for ARRAY
IS_ARRAY
✔
Compare tag structured data types
CompType
nn
Mathematical functions
✔ ✔
Calculate
CALCULATE
(SCL network in
LAD/FBD)
nn
nn
✔
✔
✔
✔
Add
ADD
+
+
✔
✔
✔
✔
Subtract
SUB
-
-
✔
✔
✔
✔
Multiply
MUL
*
*
A5E33284667-AF Page 17
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
✔
✔
✔
✔
Divide
DIV
/
/
✔ ✔ ✔ ✔
Form absolute value
Safety instruction only for S7-1200/1500
ABS
ABS
ABS
✔
✔
✔
✔
Return remainder of division
MOD
✔
✔
✔
✔
Create twos complement
NEG
NEGI, NEGD
nn
✔
✔
✔
✔
Create ones complement
nn
INVI, INVD
NOT
✔
✔
✔
✔
Increment
INC
nn
✔
✔
✔
✔
Decrement
DEC
nn
✔
✔
✔
✔
Get minimum
MIN
✔
✔
✔
✔
Get maximum
MAX
✔
✔
✔
✔
Set limit value
LIMIT
✔
✔
✔
✔
Form square
SQR
✔
✔
✔
✔
Form square root
SQRT
✔
✔
✔
✔
Form natural logarithm
LN
✔
✔
✔
✔
Form exponential value
EXP
✔
✔
✔
✔
Form sine value
SIN
✔
✔
✔
✔
Form cosine value
COS
✔
✔
✔
✔
Form tangent value
TAN
✔
✔
✔
✔
Form arcsine value
ASIN
✔
✔
✔
✔
Form arccosine value
ACOS
A5E33284667-AA Page 18
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
✔
✔
✔
✔
Form arctangent value
ATAN
✔
✔
Return fraction
FRAC
FRAC
✔
✔
Exponentiate
EXPT
**
**
Move
(✔)
(✔)
✔ ✔
Move value
S7-300/400: Only LAD and FBD
MOVE
MOVE
:=
✔
✔
Only Safety: Write value indirectly to an F-DB
WR_FBD
✔ ✔
Only Safety: Read value indirectly from an F-
DB
RD_FBD
✔
Only Safety: Read value from INT F-Array
RD_ARRAY_I
✔
Only Safety: Read value from DINT F-Array
RD_ARRAY_DI
✔ ✔
Move data type from ARRAY of BYTE
(Deserialize)
Deserialize
✔
✔
Move data type to ARRAY of BYTE (Serialize)
Serialize
(✔)
✔ ✔
Move block
S7-400: SFC 20 BLKMOV
MOVE_BLK
(✔)
✔ ✔
Move block not interruptible
S7-400: SFC 81 UBLKMOV
UMOVE_BLK
✔
✔
Move block
MOVE_BLK_VARIANT
✔
✔
Fill block
FILL_BLK
A5E33284667-AF Page 19
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
✔
✔
Fill block not interruptible
UFILL_BLK
✔ ✔
Disassemble a tag bit string data type BYTE,
WORD, DWORD or LWORD into individual bits
(= scatter)
SCATTER
✔ ✔
Disassemble an ARRAY of BYTE,
WORD,
DWORD or LWORD into individual bits
SCATTER_BLK
✔ ✔
Merge all bits from an ARRAY of BOOL, an
anonymous STRUCT or a PLC data type
exclusively with Boolean elements into a bit
string data type BYTE, WORD, DWORD or
LWORD (= gather)
GATHER
✔ ✔
Merge individual bits into multiple elements of
an ARRAY of BOOL, an anonymous STRUCT
or a PLC data type exclusively with Boolean
elements
GATHER_BLK
✔
✔
Swap
SWAP
A5E33284667-AA Page 20
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
✔
Attempt assignment of a VARIANT to a
reference
(AssignmentAttempt):
With
"AssignmentAttempt", you attempt to
assign a VARIANT tag to a reference tag. The
data type of a reference tag is specified at the
time of the declaration, the data type of a
VARIANT tag is determined during runtime.
?= AssignmentAttempt ?=
ARRAY DB
✔
✔
Read from ARRAY data block
ReadFromArrayDB
✔
✔
Write to ARRAY data block
WriteToArrayDB
✔
✔
Read from ARRAY data block in load memory
ReadFromArrayDBL
✔
✔
Write to ARRAY data block in load memory
WriteToArrayDBL
Variant
✔
✔
Read out VARIANT tag value
VariantGet
✔
✔
Write VARIANT tag value
VariantPut
✔
Get number of ARRAY elements
CountOfElements
ARRAY [*]
✔
✔
Read out ARRAY low limit
LOWER_BOUND
✔
✔
Read out ARRAY high limit
UPPER_BOUND
A5E33284667-AF Page 21
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
Read/write access
Recommendation: Symbolic programming.
✔
✔
Read data in little endian format
READ_LITTLE
✔
✔
Write data in little endian format
WRITE_LITTLE
✔
✔
Read data in big endian format
READ_BIG
✔
✔
Write data in big endian format
WRITE_BIG
✔
✔
Read memory address
PEEK
✔
✔
Read memory bit
PEEK_BOOL
✔
✔
Write memory address
POKE
✔
✔
Write memory bit
POKE_BOOL
✔
✔
Write memory area
POKE_BLK
Legacy
Recommendation: Symbolic programming
✔
✔
✔
Move block
BLKMOV
✔
✔
✔
Move block not interruptible
UBLKMOV
✔
✔
✔
Fill block
FILL
A5E33284667-AA Page 22
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
✔ ✔
Read field
Recommendation: Indexed access to an array
FieldRead
✔ ✔
Write field
Recommendation: Indexed access to an array
FieldWrite
Conversion operations
✔ ✔ ✔ ✔
Convert value
S7
-1200/1500: Is carried out implicitly,
therefore usually not necessary.
CONVERT
CONVERT
✔ ✔ ✔ ✔
Only Safety: Convert data of data type BOOL
into data of data type WORD
BO_W
✔ ✔ ✔ ✔
Only Safety: Convert data of data type WORD
into data of data type BOOL
W_BO
✔
✔
✔
✔
Round numerical value
ROUND
RND
ROUND
✔ ✔ ✔ ✔
Generate next higher integer from floating-point
number
CEIL
RND+
CEIL
✔ ✔ ✔ ✔
Generate next lower integer from floating-point
number
FLOOR
RND-
FLOOR
✔
✔
✔
✔
Truncate numerical value
TRUNC
✔
✔
✔
✔
Scale
SCALE_X
✔
✔
Normalize
NORM_X
A5E33284667-AF Page 23
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
✔
Create a reference to a tag:
"REF()" is used to specify to which tag a
previously declared reference should point.
nn nn REF
✔
✔
✔
✔
Convert BCD to integer (16 bit)
nn
BTI
BCD16_TO_INT
✔
✔
✔
✔
Convert integer (16 bit) to BCD
nn
ITB
INT_TO_BCD16
✔
✔
✔
✔
Convert BCD to integer (32 bit)
nn
BTD
BCD32_TO_INT
✔ ✔ ✔ ✔
Convert integer (32 bit) to BCD
nn DTB DINT_TO_BCD3
2
✔ ✔ ✔ ✔
Convert integer (16 bit) to integer (32 bit)
S7-1500: Conversion also done implicitly
nn
ITD
INT_TO_DINT
✔ ✔ ✔ ✔
Convert integer (32 bit) to floating
-
point number
S7-1500: Conversion also done implicitly
nn DTR DINT_TO_REAL
✔ ✔
You can generally convert numerical formats
and data types into other numerical formats
and data types. You can find more detailed
information in the information system of
STEP 7
CONVERT
xxx_TO_yyy
✔ ✔ ✔
Create ones complement integer (16 bit)
S7-1500: Conversion also done implicitly
nn INVI nn
A5E33284667-AA Page 24
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
✔ ✔ ✔
Create ones complement double integer (32
bit)
S7-1500: Conversion also done implicitly
nn INVD nn
✔
✔
✔
Negate integer (16 bit)
nn
NEGI
nn
✔
✔
✔
Negate integer (32 bit)
nn
NEGD
nn
✔
✔
✔
Negate floating-point number
nn
NEGR
nn
✔
✔
✔
Switch bytes in the right word of accumulator 1
nn
CAW
nn
✔
✔
✔
Switch all bytes in accumulator 1
nn
CAD
nn
Variant instructions
✔
✔
Convert VARIANT to DB_ANY
VARIANT_TO_DB_ANY
✔
✔
Convert DB_ANY to VARIANT
DB_ANY_TO_VARIANT
Legacy
Recommendation: Symbolic programming
✔ ✔ ✔ ✔
Convert the integer to a floating
-point number
scaled in physical units between a low limit and
high limit (scaling).
SCALE SCALE
A5E33284667-AF Page 25
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
✔ ✔ ✔
Unscale the
floating-point number into physical
units between a low limit and a high limit and
convert it into an integer (unscaling).
UNSCALE
Program control operations
✔ ✔ ✔ ✔
Branch conditionally
JC
IF… THEN…
ELSE…
✔ ✔ ✔ ✔
Branch conditionally multiple times
IF… THEN…
ELSIF…
✔
✔
✔
✔
Branch to a list element
SPL
CASE… OF…
✔ ✔ ✔ ✔
Run in counting loop
FOR… TO…
DO…
✔ ✔ ✔ ✔
Run in counting loop with step width
FOR… TO…
BY… DO…
✔ ✔ ✔ ✔
Run if condition is met, the CPU checks the
condition at the start of the loop
JC
WHILE… DO…
✔ ✔ ✔ ✔
Run if condition is not met.
The CPU checks the condition at the end of the
loop, i.e. the CPU runs the loop at least once.
LOOP
REPEAT…
UNTIL…
A5E33284667-AA Page 26
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
✔ ✔ ✔ ✔
Terminate running through the loop and start
with the next run
CONTINUE
✔
✔
✔
✔
Exit loop immediately
EXIT
✔
✔
✔
✔
Exit block
RET
BEU
RETURN
✔ ✔
Organize program code
REGION…
END_REGION
✔
✔
✔
Conditional block end
BEC
nn
✔
✔
✔
✔
Insert a comment section
//
//, (*…*)
✔
Only SIMATIC S7
-1500 Software Controller
CPU 150xS: Shut down or restart Windows and
the controller
SHUT_DWN
Jumps
✔
✔
✔
✔
Jump
GOTO…
✔
✔
✔
✔
Jump if RLO = 1
-(JMP)
-[JMP]
JC
nn
✔
✔
✔
✔
Jump if RLO = 0
-(JMPN)
-[JMPN]
JCN
nn
✔
✔
✔
✔
Jump label
LABEL
:
nn
✔
✔
Define jump list
JMP_LIST
JL
nn
✔
✔
Jump distributor
SWITCH
nn
✔
✔
✔
✔
Return
-(RET)
-[RET]
nn
✔
✔
Only Safety: Open global data block
-(OPN)
-[OPN]
nn
✔
✔
✔
Unconditional jump
JU
nn
A5E33284667-AF Page 27
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
✔
✔
✔
Jump if RLO = 1 and save RLO
nn
JCB
nn
✔
✔
✔
Jump if RLO = 0 and save RLO
nn
JNB
nn
✔
✔
✔
Jump if BR = 1
nn
JBI
nn
✔
✔
✔
Jump if BR = 0
nn
JNBI
nn
✔
✔
✔
Jump if OV = 1
nn
JO
nn
✔
✔
✔
Jump if OS = 1
nn
JOS
nn
✔
✔
✔
Jump if the result is zero
nn
JZ
nn
✔
✔
✔
Jump if the result is not zero
nn
JN
nn
✔
✔
✔
Jump if the result is greater than zero
nn
JP
nn
✔
✔
✔
Jump if the result is less than zero
nn
JM
nn
✔ ✔ ✔
Jump if the result is greater than or equal to
zero
nn JPZ nn
✔
✔
✔
Jump if the result is less than or equal to zero
nn
JMZ
nn
✔
✔
✔
Jump if the result is invalid
nn
JUO
nn
✔
✔
✔
Loop
nn
LOOP
nn
Data blocks
✔ ✔ ✔
Open global data block
S7-1500: only for "non-optimized" blocks
OPN
nn
✔ ✔ ✔
Open instance data block
S7-1500: only for "non-optimized" blocks
OPNI nn
A5E33284667-AA Page 28
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
✔
✔
✔
Swap data block register
CDB
nn
✔ ✔ ✔
Load the length of a global data block into
accumulator 1
L DBLG
nn
✔ ✔ ✔
Load the number of a global data block into
accumulator 1
L DBNO nn
✔ ✔ ✔
Load the length of an instance data block into
accumulator 1
L DILG
nn
✔ ✔ ✔
Load the number of an instance data block into
accumulator 1
L DINO nn
Code blocks
✔ ✔ ✔
Call block
LAD/FBD: Only for S7-300/400
CALL nn
✔
✔
✔
Conditional block call
CC
nn
✔
✔
✔
Unconditional block call
UC
nn
Runtime control
(✔)
✔ ✔
Limit and enable password legitimation
S7-400: SFC 109 PROTECT
ENDIS_PW
✔
✔
✔
✔
Restart cycle monitoring time
RE_TRIGR
✔
✔
✔
✔
Exit program
STP
A5E33284667-AF Page 29
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
✔
Only SIMATIC S7
-1500 Software Controller
CPU 150xS: Shut down or restart Windows and
the controller
SHUT_DOWN
✔
✔
Get error locally
GET_ERROR
✔
✔
Get error ID locally
GET_ERR_ID
✔
Compress CPU memory
COMPRESS
✔
✔
Control CiR process
CiR
✔
✔
Initialize all retain data
INIT_RD
✔
✔
✔
✔
Program time delay
WAIT
✔
✔
Change protection level
PROTECT
✔ ✔
Runtime measurement with nanosecond
accuracy
RUNTIME
✔ ✔ ✔ ✔
Only Safety: Fail-safe acknowledgment from an
operator control and monitoring system
F_ACK_OP
Word logic operations
✔
✔
✔
✔
Create ones complement
INV
NOT
✔
✔
✔
✔
Decode
DECO
✔
✔
✔
✔
Encode
ENCO
✔
✔
✔
✔
Select
SEL
A5E33284667-AA Page 30
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
✔ ✔ ✔ ✔
Multiplex
S7-300/400: Only SCL
MUX nn MUX
✔
✔
Demultiplex
DEMUX
nn
DEMUX
✔
✔
✔
✔
AND logic operation word by word
AND
AW
AND, &
✔
✔
✔
✔
OR logic operation word by word
OR
OW
OR
✔
✔
✔
✔
EXCLUSIVE OR logic operation word by word
XOR
XOW
XOR
✔ ✔ ✔ ✔
AND logic operation double word by double
word
AND
AD
AND, &
✔
✔
✔
✔
OR logic operation double word by double word
OR
OD
OR
✔ ✔ ✔ ✔
EXCLUSIVE OR logic operation double word
by double word
XOR
XOD
XOR
Shift and rotate
✔
✔
✔
✔
Rotate right
ROR
✔
✔
✔
✔
Rotate left
ROL
✔
✔
✔
✔
Shift right word by word
SHR
SRW
SHR
✔
✔
✔
✔
Shift left word by word
SHL
SLW
SHL
✔
✔
✔
Shift word by word with sign
SSI
nn
✔
✔
✔
Shift double word by double word with sign
SSD
nn
✔
✔
✔
Shift right double word by double word
SRD
nn
✔
✔
✔
Shift left double word by double word
SLD
nn
A5E33284667-AF Page 31
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
✔
✔
✔
Rotate right double word by double word
SHR
RRD
SHR
✔
✔
✔
Rotate left double word by double word
SHL
RLD
SHL
✔
✔
✔
Rotate left by status bit CC 1
RLDA
nn
✔
✔
✔
Rotate right by status bit CC 1
RRDA
nn
Loading and transferring the registers in STL
Information on S7
-400: The controllers have four accumulators.
You will find only the instructions for two accumulators in the
list below.
Loading
✔
✔
✔
Loading
nn
L
nn
✔
✔
✔
Load status word in accumulator 1
L STW
nn
✔
✔
✔
Load AR1 with contents of accumulator 1
LAR1
nn
✔
✔
✔
Load AR1 with double word or area pointer
LAR1 <D>
nn
✔
✔
✔
Load AR1 with contents of AR2
LAR1 AR2
nn
✔
✔
✔
Load AR2 with contents of accumulator 1
LAR2
nn
✔
✔
✔
Load AR2 with double word or area pointer
LAR2 <D>
nn
Transfer
✔
✔
✔
Transfer
nn
T
nn
✔
✔
✔
Transfer accumulator 1 to status word
T STW
nn
✔
✔
✔
Switch AR1 and AR2
CAR
nn
✔
✔
✔
Transfer AR1 to accumulator 1
TAR1
nn
A5E33284667-AA Page 32
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
✔
✔
✔
Transfer AR1 to double word
TAR1 <D>
nn
✔
✔
✔
Transfer AR1 to AR2
TAR1 AR2
nn
✔
✔
✔
Transfer AR2 to accumulator 1
TAR2
nn
✔
✔
✔
Transfer AR2 to double word
TAR2 <D>
nn
Legacy
✔
✔
✔
Implement sequencer
DRUM
✔
✔
Implement sequencer
DRUM_X
✔
✔
✔
Discrete control time interrupt
DCAT
✔
✔
✔
Motor control time interrupt
MCAT
✔
✔
✔
Compare input bits with the bits of a mask
IMC
✔
✔
✔
Matrix scanner
SMC
✔
✔
✔
Lead and lag algorithm
LEAD_LAG
✔
✔
✔
Create bit pattern for 7-segment display
SEG
✔
✔
✔
Create tens complement
BCDCPL
✔
✔
✔
Count number of set bits
BITSUM
✔
✔
Time accumulator
TONR_X
✔
✔
Save data to shift register
WSR
✔
✔
Shift bit to shift register
SHRB
✔
✔
Get status bit
Status -||-
A 0V
nn
A5E33284667-AF Page 33
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
✔
✔
Call block
-(CALL)
-[CALL]
UC
nn
✔
✔
Save RLO in BR bit
-(SAVE)
-[SAVE]
SAVE
nn
✔
✔
Open MCR ranges
-(MCR<)
-[MCR<]
MCR(
nn
✔
✔
Close MCR ranges
-(MCR>)
-[MCR>]
)MCR
nn
✔
✔
Enable MCR range
-(MCRA)
-[MCRA]
MCRA
nn
✔
✔
Disable MCR range
-(MCRD)
-[MCRD]
MCRD
nn
✔
✔
Set bit array
SET
✔
✔
Set byte array
SETI
✔
✔
Reset bit array
RESET
✔
✔
Reset byte array
RESETI
✔
✔
Enter substitute value
REPL_VAL
✔
✔
✔
Swap content of accumulators 1 and 2
nn
TAK
nn
✔
✔
✔
Shift contents to the next highest accumulator
nn
PUSH
nn
✔
✔
✔
Shift contents to the next lowest accumulator
nn
POP
nn
✔
✔
✔
Add accumulator 1 to AR1
nn
+AR1
nn
✔
✔
✔
Add accumulator 1 to AR2
nn
+AR2
nn
✔
✔
✔
Program display (null instruction)
nn
BLD
nn
✔
✔
✔
Null instruction
nn
NOP 0
nn
✔
✔
✔
Null instruction
nn
NOP 1
nn
A5E33284877-AA Page 34
Extended instructions
Basic instructions
Communication
Technology
Instructions in the section "Extended instructions
"
Instruction groups
Page
Instruction groups
Page
Instruction groups
Page
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
Date and time
✔
✔
✔
Compare time tags
T_COMP*
✔
✔
✔
✔
Convert times and extract
T_CONV*
✔
✔
✔
✔
Add times
T_ADD*
✔
✔
✔
✔
Subtract times
T_SUB*
✔
✔
✔
✔
Time difference
T_DIFF*
✔
✔
✔
Combine times
T_COMBINE*
* SCL: Use conversion functions x_TO_y (e.g. TIME_TO_DINT), or comparator and arithmetic operators (e.g. +, -, >, <).
Date and time
34
Interrupts
42
Table functions
48
String and Character
36
Alarms
44
Addressing
49
Process image
Distributed I/O
PROFIenergy
Module parameter
assignment
39
39
41
42
Diagnostics
Pulse
Recipes & data logging
Data block functions
45
47
47
47
File operations (file handling)
R/H system
Other instructions
50
51
51
A5E33284667-AF Page 35
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
Time-of-day functions
✔
✔
✔
✔
Set time-of-day (STEP 7 V 5x: SET_CLK)
WR_SYS_T
✔
✔
✔
✔
Read time-of-day (STEP 7 V 5x: READ_CLK)
RD_SYS_T
✔
✔
Read local time
RD_LOC_T
✔
✔
Write local time
WR_LOC_T
✔
✔
Synchronize slave clocks
SNC_RTCB
✔
✔
✔
Read system time
TIME_TCK
✔
✔
Set time zone
SET_TIMEZONE
✔
✔
✔
✔
Runtime meters
RTM
✔
✔
Set runtime meters
SET_RTM
✔
✔
Start and stop runtime meters
CTRL_RTM
✔
✔
Read runtime meters
READ_RTM
✔
Set time-of-day and time-of-day status
SET_CLKS
Local time
✔
✔
Calculate local time
LOC_TIME
✔
✔
Calculate local time from base time
BT_LT
✔
✔
Calculate base time from local time
LT_BT
✔
✔
Set time-of-day interrupt using local time
S_LTINT
A5E33284667-AA Page 36
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
✔ ✔
Set daylight saving time/standard time without time-
of-day status
SET_SW
✔
✔
Transfer time-stamped alarms
TIMESTMP
✔
Set daylight saving time/standard time with time-of-
day status
SET_SW_S
String and Character
✔
✔
Move character string
S_MOVE
:=
✔
✔
✔
Compare character strings
S_COMP
=
✔
✔
✔
✔
Convert character string
S_CONV
✔
✔
Convert character string to numerical value
STRG_VAL
STRG_...
✔
✔
Convert numerical value to character string
VAL_STRG
…_STRG
✔
✔
Convert character string to Array of CHAR
Strg_TO_Chars
✔
✔
Convert Array of CHAR to character string
Chars_TO_Strg
✔
✔
Determine the length of a character string
MAX_LEN
✔
Join multiple character strings
JOIN
✔
Split character array in multiple character strings
SPLIT
✔
✔
✔
✔
Convert ASCII string to hexadecimal number
(conversion is contained in the converting functions,
e.g.: CHAR_TO_WORD)
ATH
✔
✔
✔
✔
Convert hexadecimal number to ASCII string
HTA
A5E33284667-AF Page 37
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
Other instructions
✔
✔
✔
✔
Determine the length of a character string
LEN
✔
✔
✔
✔
Connect character strings
CONCAT
✔
✔
✔
✔
Read the left characters of a character string
LEFT
✔
✔
✔
✔
Read the right characters of a character string
RIGHT
✔
✔
✔
✔
Read the middle characters of a character string
MID
✔
✔
✔
✔
Delete characters in a character string
DELETE
✔
✔
✔
✔
Insert characters in a character string
INSERT
✔
✔
✔
✔
Replace characters in a character string
REPLACE
✔
✔
✔
✔
Find characters in a character string
FIND
Runtime information
✔
✔
Read out name of a tag on the input parameter
GetSymbolName
A5E33284667-AA Page 38
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
✔ ✔
Read global name at beginning of a call path.
Illustration:
GetSymbolPath
✔
✔
Read out name of the block instance
GetInstanceName
✔
✔
Query the global name of block instance
GetInstancePath
✔
✔
Read out name of block in the block itself
GetBlockName
A5E33284667-AF Page 39
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
Process image
✔
✔
Update the process image inputs
UPDAT_PI
✔
✔
Update the process image outputs
UPDAT_PO
✔
✔
✔
Synchronize the process image inputs
SYNC_PI
✔
✔
✔
Synchronize the process image outputs
SYNC_PO
Distributed I/O
DP and PROFINET
✔
✔
✔
✔
Read data record
RDREC
✔
✔
✔
✔
Write data record
WRREC
✔
✔
✔
✔
Read process image
GETIO
✔
✔
✔
✔
Transfer process image
SETIO
✔
✔
✔
✔
Read process image area
GETIO_PART
✔
✔
✔
✔
Transfer process image area
SETIO_PART
✔
✔
✔
✔
Receive interrupt
RALRM
✔
✔
✔
✔
Disable/enable DP slaves
D_ACT_DP
A5E33284667-AA Page 40
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
✔
Control configuration of a PROFINET IO system
(options handling)
Enable or disable devices in order to, for
example,
Flexibly run through or bypass production steps of a
manufacturing process.
ReconfigIOSystem
Other instructions
✔
✔
✔
Read data record from I/O
RD_REC
✔
✔
✔
Write data record to I/O
WR_REC
✔
✔
✔
✔
Read consistent data of a DP standard slave
DPRD_DAT
✔
✔
✔
✔
Write consistent data of a DP standard slave
DPWR_DAT
iDevice/iSlave
✔
✔
✔
Receive data record
RCVREC
✔
✔
✔
Make data record available
PRVREC
✔
Send interrupt
SALRM
PROFIBUS
✔
✔
Trigger hardware interrupt from DP standard slave
DP_PRAL
✔
✔
✔
Synchronize DP slaves/Freeze inputs
DPSYC_FR
✔
✔
✔
✔
Read diagnostics data from a DP slave
DPNRM_DG
✔
✔
✔
Determine topology for the DP master system
DP_TOPOL
A5E33284667-AF Page 41
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
ASi
✔
✔
Control ASi master behavior
ASi_3422
✔
✔
✔
Control ASi master behavior
ASI_CTRL
PROFIenergy
IO controller
✔
✔
✔
Start and exit energy-saving mode
PE_START_END
✔ ✔ ✔
Start and exit energy
-saving mode/Read out status
information
PE_CMD
✔
✔
✔
Set switching behavior of power modules
PE_DS3_WRITE_ET200S
✔ ✔ ✔
Starting and stopping energy
-saving mode via
WakeOnLan
PE_WOL
iDevice/iSlave
✔
✔
✔
Control PROFIenergy commands in the iDevice
PE_I_DEV
✔
✔
✔
Generate negative answer to command
PE_Error_RSP
✔
✔
✔
Generate answer to command at start of pause
PE_Start_RSP
✔
✔
✔
Generate answer to command at end of pause
PE_End_RSP
✔
✔
✔
Generate queried energy savings modes as answer
PE_List_Modes_RSP
✔
✔
✔
Generate scanned energy saving data as answer
PE_Get_Mode_RSP
✔
✔
✔
Generate PEM status as answer
PE_PEM_Status_RSP
A5E33284667-AA Page 42
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
✔
✔
✔
Number of PROFIenergy commands
PE_Identify_RSP
✔ ✔ ✔
Generate supported PROFIenergy commands as
answer
PE_Measurement_List_RSP
✔
✔
✔
Generate queried measured values as answer
PE_Measurement_Value_RSP
Module parameter assignment
✔
✔
✔
Read module data record (predefined parameters)
RD_DPAR
✔ ✔
Read data record of a module asynchronously
(predefined parameters)
RD_DPARA
✔
✔
Transfer module data records
PARM_MOD
✔ ✔
Read data record from configured system data
(predefined parameters)
RD_DPARM
✔
✔
Write module data record (dynamic parameters)
WR_PARM
✔
✔
✔
Transfer data record (predefined parameters)
WR_DPARM
Interrupts
✔
✔
Assign an OB to an interrupt event
ATTACH
✔
✔
Detach an OB from an interrupt event
DETACH
Cyclic interrupt
✔
✔
Set cyclic interrupt parameters
SET_CINT
✔
✔
Query cyclic interrupt parameters
QRY_CINT
A5E33284667-AF Page 43
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
Time-of-day interrupt
✔
✔
✔
Set time-of-day interrupt
SET_TINT
✔ ✔
Set time-of-day interrupt, local or system time
LOCAL: Refer SDT to local or system time.
ACTIVATE: When does the OB apply the settings.
SET_TINTL
✔
✔
✔
✔
Cancel time-of-day interrupt
CAN_TINT
✔
✔
✔
✔
Activate time-of-day interrupt
ACT_TINT
✔
✔
✔
✔
Query status of time-of-day interrupt
QRY_TINT
Time-delay interrupt
✔
✔
✔
✔
Start time-delay interrupt
SRT_DINT
✔
✔
✔
✔
Cancel time-delay interrupt
CAN_DINT
✔
✔
✔
✔
Query the status of a time-delay interrupt
QRY_DINT
Synchronous error events
✔
✔
✔
Mask synchronous error events
MSK_FLT
✔
✔
✔
Unmask synchronous error events
DMSK_FLT
✔
✔
✔
Read out event status register
READ_ERR
Asynchronous error event
✔
✔
✔
Disable interrupt event
DIS_IRT
✔
✔
✔
Enable interrupt event
EN_IRT
A5E33284667-AA Page 44
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
✔ ✔ ✔ ✔
Delay execution of higher priority interrupts and
asynchronous error events
DIS_AIRT
✔ ✔ ✔ ✔
Enable execution of higher priority interrupts and
Enable asynchronous events
EN_AIRT
✔
Trigger multicomputing interrupt
MP_ALM
Alarms
✔
Generate program alarm with associated values
Program_Alarm
✔
Output alarm status
Get_AlarmState
✔ ✔
Generate user diagnostic alarms that are entered in
the diagnostics buffer
Gen_UsrMsg
✔
Read pending alarms
Get_Alarm
✔
Acknowledging alarms
Ack_Alarms
✔ ✔
Write a user diagnostics event to the diagnostics
buffer
WR_USMSG
✔
✔
Generate alarm messages
ALARM_S
✔
✔
Generate alarm message with acknowledgment
ALARM_SQ
✔
✔
Create permanently acknowledged PLC alarms
ALARM_D
✔
✔
Create acknowledgeable PLC alarms
ALARM_DQ
✔
✔
Determine acknowledgment status of the last
ALARM_SC
A5E33284667-AF Page 45
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
ALARM_SQ incoming alarm
✔
Report up to eight signal changes
NOTIFY_8P
✔
Create PLC alarms without associated values for
eight signals
ALARM_8
✔
Create PLC alarms with associated values for eight
signals
ALARM_8P
✔
Report a signal change
NOTIFY
✔
Create PLC alarms with acknowledgment display
ALARM
✔
Send archive data
AR_SEND
Other instructions
✔
✔
Read out dynamically assigned system resources
READ_SI
✔
✔
Delete dynamically assigned system resources
DEL_SI
✔
Enable PLC alarms
EN_MSG
✔
Disable PLC alarms
DIS_MSG
Diagnostics
✔
✔
✔
Read current OB start information
RD_SINFO
✔
Read runtime statistics
RT_INFO
✔
Determine OB program runtime
OB_RT
✔
Determine current connection status
C_DIAG
A5E33284667-AA Page 46
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
✔
✔
Read system status list
RDSYSST
✔
✔
Read LED status
LED
✔
✔
Reading identification and maintenance data
Get_IM_Data
✔
✔
Read out name of a module
Get_Name
✔
✔
Read information of an IO device
GetStationInfo
✔
✔
Read out checksum
GetChecksum
✔
✔
Read out information about the memory card
GetSMCinfo
✔
Read out status of the CPU clock
Is time synchronization via NTP server enabled?
Time synchronization missed?
Is automatic adjustment for daylight saving time
enabled?
GetClockStatus
✔ ✔
Read module status information in an
IO system
DeciveStates
✔
✔
Read module status information of a module
ModuleStates
✔
Generate diagnostics information
GEN_DIAG
✔
✔
Read diagnostics information
GET_DIAG
A5E33284667-AF Page 47
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
Pulse
✔
Pulse width modulation
CTRL_PWM
✔
Pulse train output, output a pulse sequence with
specified frequency
CTRL_PTO
Recipes & data logging
Recipe functions
✔
✔
Export recipe
RecipeExport
✔
✔
Import recipe
RecipeImport
Data logging
✔
✔
Create data log
DataLogCreate
✔
✔
Open data log
DataLogOpen
✔
✔
Write data log
DataLogWrite
✔
✔
Empty data log
DataLogClear
✔
✔
Close data log
DataLogClose
✔
✔
Delete data log
DataLogDelete
✔
✔
Data log in new file
DataLogNewFile
Data block functions
✔
✔
Create data block
CREAT_DB
✔
✔
Create data block
CREATE_DB
A5E33284667-AA Page 48
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
✔
✔
Create data block in the load memory
CREA_DBL
✔
✔
✔
✔
Read from data block in the load memory
READ_DBL
✔
✔
✔
✔
Write to data block in the load memory
WRIT_DBL
✔
✔
Read data block attributes
ATTR_DB
✔
✔
Delete data block
DEL_DB
✔
✔
Delete data block
DELETE_DB
✔
✔
Test data block
TEST_DB
Table functions
✔
✔
Add value to table
ATT
✔
✔
Output first value of the table
FIFO
✔
✔
Find value in table
TBL_FIND
✔
✔
Output last value in table
LIFO
✔
✔
Execute table instruction
TBL
✔
✔
Run value from table
TBL_WRD
✔
✔
Link value logically with table element and save
WRD_TBL
✔
✔
Calculate standard deviation
DEV
✔
✔
Correlated data tables
CDT
✔
✔
Link tables
TBL_TBL
✔
✔
Collect/distribute table data
PACK
A5E33284667-AF Page 49
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
Addressing
✔
✔
Determine hardware identifier from slot
GEO2LOG
✔
✔
Determine slot from the hardware identifier
LOG2GEO
✔
Determine the hardware identifier from addressing of
STEP 7 V5.5 SPx
LOG2MOD
✔
✔
Determine hardware identifier from an IO address
IO2MOD
✔ ✔
Determine the IO addresses from the hardware
identifier
RD_ADDR
Other instructions for addressing
✔ ✔ ✔
S7-300/400: Determine start address from slot
S7
-1500: Determine hardware identifier from slot.
Exists only for compatibility reasons, not
recommended
GEO_LOG
✔ ✔ ✔
S7-300/400: Determine slot from a logical address
S7
-1500: Determine slot from the hardware identifier.
Exists only for compatibility reasons, not
recommended
LOG_GEO
A5E33284667-AA Page 50
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
✔ ✔ ✔
S7-300/400: Determine all logical addresses from a
logical address
S7
-1500: Determine the logical addresses from the
hardware identifier
RD_LGADR
✔ ✔ ✔
S7-300/400: Determine logical basic address from
slot and offset in the user data address area
S7
-1500: Determine hardware identifier from slot and
offset in the user data address area
GADR_LGC
✔ ✔ ✔
S7-300/400: Determine slot and offset in the user
database from a logical address
S7
-1500: Determine slot from the hardware identifier.
Exists only
for compatibility reasons, not
recommended
LGC_GADR
File operations (file handling)
✔
Read data from an ASCII file from the memory card
FileReadC
✔
Write data to an ASCII file on the memory card
FileWriteC
A5E33284667-AF Page 51
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
R/H system
RH
Only S7-1500 R/H: Enable or disable the SYNCUP
system state. The lock applies:
Until you disable the lock again
Until the S7-1500R/H goes to STOP
RH_CTRL
Other instructions
iSlave
✔
Set own network address as DP iSlave
SET_ADDR
A5E33284667-AA Page 52
Extended instructions
Basic instructions
Technology
Communication
Instructions in the section "Technology
"
Instruction groups
Page
Instruction groups
Page
Instruction groups
Page
Counting (and measuring)
PID Control
52
53
Function modules
S7-300C functions
55
55
Time-driven inputs/outputs
Motion Control
55
56
T in the S7-300 column means: Instruction for the S7-300 Technology CPU S7-31xT. The operating principle of the
instructions can differ between S7-300 and S7-1500. Instructions solely for the S7-31xT are not listed in the table. The
Technology CPU S7-31xT cannot be programmed in the TIA Portal.
T in the S7-1500 column means: Instruction for the Technology CPU S7-15xyT.
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
Counting (and measuring)
✔
Control high-speed counters
CTRL_HSC
✔
High
-speed counter for counting and
measuring
High_Speed_Counter
✔
Detect position with SSI absolute encoder
SSI_Absolut_Encoder
A5E33284667-AF Page 53
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
PID Control
Compact PID
✔ ✔
Universal PID controller with integrated tuning
for proportional-action actuators
PID_Compact
✔ ✔
PID controller with integrated optimization for
valves and actuators
PID_3Step
✔ ✔
Temperature controller with integrated
optimization for temperature processes
PID_Temp
PID basic function
✔
✔
✔
Continuous-action controller
CONT_C
✔
✔
✔
Step controller for integrating actuators
CONT_S
✔ ✔ ✔
Pulse generator for proportional
-acting
actuators
PULSEGEN
✔ ✔ ✔
Continuous temperature controller with pulse
generator
TCONT_CP
✔ ✔ ✔
Temperature controller for integrating
actuators
TCONT_S
A5E33284667-AA Page 54
Extended instructions
Basic instructions
Technology
Communication
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
✔ ✔
Automatic optimization for a continuous-
action controller
TUN_EC
✔ ✔
Automatic optimization for a step controller
TUN_ES
Integrated system functions
✔
✔
Continuous-action controller
CONT_C_SF
✔
✔
Step controller for integrating actuators
CONT_S_SF
✔ ✔
Pulse generator for proportional-acting
actuators
PULSGEN_SF
Help functions
✔ ✔
Mapping an input value to an output value
using a characteristic curve.
The
characteristic curve is a polyline with
maximum 50 interpolation points with linear
interpolation.
Polyline
✔
✔
Converting input value into an output value
SplitRange
✔
✔
Limiting the change speed of a signal
RampFunction
A5E33284667-AF Page 55
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
Function modules
✔ ✔
Diverse instructions for FM modules
Counting/Positioning/Cam Control/PID
Control/Temp Control
✔
S7-300C functions
✔
Position with analog output
ANALOG
✔
Position with digital output
DIGITAL
✔
Control counter
COUNT
✔
Control frequency measurement
FREQUENC
✔
Control pulse width modulation
Pulse
Time-driven inputs/outputs
✔
Synchronize TIO modules
TIO_SYNC
✔
Read in process input signals with time
stamps
TIO_IOLink_IN
✔
Read in edges at digital input and associated
time stamps
TIO_DI
✔
Time-controlled output of process output
signals
TIO_IOLink_OUT
A5E33284667-AA Page 56
Extended instructions
Basic instructions
Technology
Communication
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
✔
Output edges time-controlled at digital output
TIO_DQ
Motion Control
T
✔
✔
Release/lock axis/technology
MC_Power
T ✔ ✔
Acknowledge interrupts, restart
axis/technology object
MC_Reset
T ✔ ✔
Home axis/technology objects, set home
position
MC_Home
T
✔
✔
Pause axis
MC_Halt
T
✔
✔
Position axis absolutely
MC_MoveAbsolute
T
✔
✔
Position axis relatively
MC_MoveRelative
T
✔
✔
Move axis at set velocity/speed
MC_MoveVelocity
T
✔
✔
Move axis in jog mode
MC_MoveJog
✔
Run axis commands as motion sequence
MC_CommandTable
✔
Change dynamic settings of axis
MC_ChangeDynamic
✔
Write tag of positioning axis
MC_WriteParam
A5E33284667-AF Page 57
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
✔
Continuously read motion data of a
positioning axis
MC_ReadParam
T
T
Set alternative encoder as active encoder
MC_SetSensor
T
✔
Position axis overlapping
MC_MoveSuperImposed
Output cams, cam track, measuring input
T
✔
Start one-time measuring
MC_MeasuringInput
T ✔
Start cyclic measuring
S7-1500: MC_MeasuringInputCyclic
S7-300T: MC_MeasuringInput
T ✔
Cancel active measuring job
S7-1500: MC_AbortMeasuringInput
S7-300T: MC_MeasuringInput
T ✔
Activate/deactivate output cam
S7-1500: MC_OutputCam (position-based cams and time-
based cams
S7-300T: MC_CamSwitch (position-based cam)
S7-300T: MC_CamSwitchTime (time-based cam)
T
✔
Activate/deactivate cam track
MC_CamTrack
Gearing/camming
T
✔
Start gearing
MC_GearIn
T
T
Start gearing with specified synchronous
positions
S7-1500T: MC_GearInPos
S7-300T: MC_GearIn
A5E33284667-AA Page 58
Extended instructions
Basic instructions
Technology
Communication
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
T
T
Relative shift of master value on the following
axis
S7-1500T: MC_PhasingRelative
S7-300T: MC_Phasing
T
T
Absolute shift of master value on the following
axis
S7-1500T: MC_PhasingAbsolute
S7-300T: MC_Phasing
T
T
Start camming
MC_CamIn
T
Simulate synchronous operation
MC_SynchronizedMotionSimulation
Cam disc
T
T
Interpolating a cam disc
MC_InterpolateCam
T
T
Read master value of a cam
S7-1500T: MC_GetCamLeadingValue
S7-300T: MC_GetCamPoint
T
T
Read out slave value of a cam
S7-1500T: MC_GetCamFollowingValue
S7-300T: MC_GetCamPoint
MotionIn
T
Set motion setpoints for velocity and
acceleration
MC_MotionInVelocity
T
Set motion setpoints for position, velocity and
acceleration
MC_MotionInPosition
A5E33284667-AF Page 59
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
Torque data
Force/torque limiting / fixed stop detection
✔
Specify additive torque
MC_TorqueAdditive
✔
Set high and low torque limits
MC_TorqueRange
T ✔
Activate and deactivate force/torque limit/
fixed stop detection
MC_TorqueLimiting
Motions (kinematics)
T
Interrupt execution of motion
MC_GroupInterrupt
T
Continue execution of motion
MC_GroupContinue
T
Stop motion
MC_GroupStop
T
Position kinematics absolutely with linear path
motion
MC_MoveLinearAbsolute
T
Relative positioning of kinematics with linear
path motion
MC_MoveLinearRelative
T
Position kinematics absolutely with circular
path motion
MC_MoveCircularAbsolute
T
Relative positioning of kinematics with circular
path motion
MC_MoveCircularRelative
A5E33284667-AA Page 60
Extended instructions
Basic instructions
Technology
Communication
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
Zones
T
Define workspace zone
MC_DefineWorkspaceZone
T
Define kinematics zone
MC_DefineKinematicsZone
T
Activate workspace zone
MC_SetWorkspaceZoneActive
T
Deactivate workspace zone
MC_SetWorkspaceZoneInactive
T
Activate kinematics zone
MC_SetKinematicsZoneActive
T
Deactivate kinematics zone
MC_SetKinematicsZoneInactive
Toolbox
T
Re-define tool
MC_DefineTool
T
Change active tool
MC_SetTool
Coordinate systems
T
Redefine object coordinate systems
MC_SetOcsFrame
A5E33284667-AF Page 61
Extended instructions
Basic instructions
Communication
Technology
A5E33284667-AA Page 62
Extended instructions
Basic instructions
Technology
Communication
The following pages provide an overview of the details and usage of important functions of open communication and S7
communication.
Open communication
Definition: Open exchange of data via PROFINET/Industrial Ethernet between SIMATIC controllers or between SIMATIC
controllers and third-party devices. Example of suitable interfaces:
• Integrated PROFINET/Industrial Ethernet interfaces of controllers
• PROFINET/Industrial Ethernet interfaces of communication modules
Due to the open and flexible communication, the size of a sent data package is not automatically known to the receiver. TCP
or ISO-on-TCP ensures the arrival of the data at the receiver through a transport acknowledgment. To ensure that the data
has arrived completely in the application of the receiver, you must determine:
1. Determine the size of the data package in the sender.
2. Transfer the size of the data package to the receiver.
3. Evaluate the information in the receiver.
A5E33284667-AF Page 63
Extended instructions
Basic instructions
Technology
Communication
S7-300/400
S7-1200
S7-1500
Instruction
Logs
Property of
the data
transfer
Data package size
Application and
application example
✔
✔
✔
TSEND
/TRCV TCP or
ISO-on-TCP
Reliable with
acknowledgment
<= 64 KB
Exception S7-1200:
<= 8 KB
Exchange large data volumes with
acknowledgment. For example: Send
data block with measured value logs to
any network node.
✔
✔
TSEND_C/TRCV_C
(connection establishment
and
termination are integrated)
✔
✔
UDP
Fast,
without
acknowledgment
Distribute larger amounts of data without
acknowledgment. For example
: Distribute
position data quickly to many devices.
An exact calculation of the limits is
available in the controller manuals.
(✔)
✔
✔
TUSEND
/TURCV
(not S7
-300)
Integrated interface:
Max. 1472 bytes
CP on S7-300/400:
Max. 2048 bytes
A5E33284667-AA Page 64
Extended instructions
Basic instructions
Technology
Communication
S7 communication
Definition: SIMATIC-homogeneous data exchange between SIMATIC CPUs via PROFIBUS or PROFINET/Industrial
Ethernet.
With S7 communication, you connect existing S7-300/400 to S7-1200/1500 or migrate existing systems to S7-1200/1500.
Recommendation: Use open communication for data exchange between S7-1200/1500 and thus the possibilities of common
Ethernet standards.
Coordinated data transmission with BSEND and BRCV
BSEND sends data to an instruction of the type BRCV in a partner controller. Since BSEND and BRCV coordinate the data
transfer, BSEND/BRCV transport the largest amount of data of all the configured S7 connections. BSEND segments the data
area to be sent and sends each segment individually to the partner. BRCV acknowledges the acceptance of the sent segment.
When BRCV has acknowledged the receipt of the complete data area, you can start a new send job BSEND.
Uncoordinated data transmission with USEND and URCV
USEND sends data to an instruction of the type URCV in a partner controller. URCV does not acknowledge the receipt of the
data. The data transfer is not coordinated with the partner controller. This means that USEND can overwrite received data
before URCV has written all the data to the target area. If USEND overwrites data, the receiver outputs an error message.
A5E33284667-AF Page 65
Extended instructions
Basic instructions
Technology
Communication
S7-300/400
S7-1200
S7-1500
Instruction
Operating
state
of
partner
controller
Property of
the data
transfer
Guaranteed user
data size for
specified partner
controller
Application
Notes
✔
✔
✔
GET
RUN or
STOP
Reliable with
acknowledgme
nt
S7
-300: 160 bytes
S7
-400: 400 bytes
S7
-1200: 160 bytes
S7
-1500: 880 bytes
Accessing data in the
target
controller
without any
programming.
For example, read
operating data.
You have to use data
blocks with absolute
addressing. Symbolic
addressing is not
possible. You must also
enable this service in the
CPU configuration in the
"Protection" area
.
✔
GET_S
✔
✔
✔
PUT
Changing data in the
target
controller
without any
programming.
For example, write
parameters in a data block and
change a recipe.
✔
PUT_S
✔
✔
BSEND/BRCV:
RUN
S7
-300: 32768/
65534 bytes
S7
-400: 65534 bytes
S7
-1500:
65534 bytes,
optimized:
65535
bytes
Exchange large amounts of data.
For example,
send data block with
measured value logs to a SCADA
system for further evaluation.
Coordinated transmission
(
See above)
✔
✔
USEND/URCV
Fast,
without
acknowledgme
nt
S7
-300: 160 bytes
S7
-400: 440 bytes
S7
-1500: 920 bytes
Control multiple
controllers, or
send data to multiple
controllers.
For example,
distribute actual
values
of a sensor to several
controllers.
Uncoordinated
transmission
(
See above)
✔
USEND_S/
URCV_S
A5E33284667-AA Page 66
Extended instructions
Basic instructions
Communication
Technology
Instructions in the section "Communication
"
Instruction groups
Page
Instruction groups
Page
Instruction groups
Page
PROFINET and PROFIBUS
S7 communication
Open User Communication
OPC UA
WEB server
66
66
68
69
71
Fail-safe HMI panels
Modbus TCP
Communications processors
S7-300C functions
71
72
73
81
Communication with I-slave
PROFINET CBA
MPI communication
TeleService
82
82
83
83
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
PROFINET and PROFIBUS
✔ ✔ ✔ ✔
Only Safety: Fail-safe sending of data via PROFIBUS
DP/PROFINET IO
SENDDP
✔ ✔ ✔ ✔ Only Safety: Fail-safe receipt of data via PROFIBUS
DP/PROFINET IO
RCVDP
S7 communication
✔
✔
✔
✔
Read data from a remote CPU
GET
✔
✔
✔
✔
Write data to a remote CPU
PUT
A5E33284667-AF Page 67
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
✔
✔
✔
Send data uncoordinated
USEND
✔
✔
✔
Receive data uncoordinated
URCV
✔
✔
✔
Send data in segments
BSEND
✔
✔
✔
Receive data in segments
BRCV
✔
Initiate a warm or cold restart in a remote device
START
✔
Transition a remote device to STOP state
STOP
✔
Initiate a restart in a remote device.
RESUME
✔
Query the status of a remote partner
STATUS
✔
Receive remote device status change
USTATUS
✔
Query the status of connection that belongs to an SFB
instance
CONTROL
✔
Query connection status
C_CNTRL
✔
✔
Only Safety: Fail-safe sending of data via S7 connections
SENDS7
✔
✔
Only Safety: Fail-safe receipt of data via S7 connections
RCVS7
A5E33284667-AA Page 68
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
Other instructions
Note: S stands for short,
since only one parameter is possible
✔
✔
Read data from a remote CPU
GET_S
✔
✔
Write data to a remote CPU
PUT_S
✔
✔
Send data uncoordinated
USEND_S
✔
✔
Receive data uncoordinated
URCV_S
Open User Communication
Compact instructions (…_C)
Connect and Disconnect are integrated
✔ ✔
Manage communication connection and send data via
Ethernet
TSEND_C
✔ ✔
Manage communication connection and receive data via
Ethernet
TRCV_C
✔
✔
Manage communication connection and transfer email
TMAIL_C
Other instructions
✔
✔
✔
✔
Establish communication connection
TCON
✔
✔
✔
✔
Terminate communication connection
TDISCON
✔
✔
✔
✔
Send data via communication connection
TSEND
✔
✔
✔
✔
Receive data via communication connection
TRCV
A5E33284667-AF Page 69
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
✔
✔
Resetting the connection
T_RESET
✔
✔
Check the connection
T_DIAG
✔
✔
Configure interface
T_CONFIG
✔ ✔
Program-controlled IP and connection configuration via
SEND/RECEIVE
IP_CONFIG
✔
✔
✔
✔
Send data via Ethernet (UDP)
TUSEND
✔
✔
✔
✔
Receive data via Ethernet (UDP)
TURCV
✔
✔
Change IP configuration parameters
IP_CONF
✔
✔
Swap data using FETCH and WRITE via TCP
FW_TCP
✔
✔
Swap data using FETCH and WRITE via ISO-on-TCP
FW_IOT
OPC UA
OPC UA server
✔
Query to operating system whether the serve method was
called.
If the server method was called, the instruction provides
the input parameters for the server method.
OPC_UA_ServerMethodPre
✔
Information to operating system that the server method
was called and that the values of the output parameters
are valid.
OPC_UA_ServerMethodPost
A5E33284667-AA Page 70
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
OPC UA: CP 443-1 OPC UA
✔
Establish connection for a session with an OPC UA server
UA_Connect
✔
Fetching namespace index of a namespace URL
UA_NamespaceGetIndex
✔
Registering node IDs on the connected server and fetching
node handles in the form of a list
UA_NodeGetHandleList
✔
Reading out the data from nodes of the connected server
using the list of node handles
UA_ReadList
✔
Writing the data in nodes of the connected server using the
list of node handles
UA_WriteList
✔
On the server, enable the node handles of the list used
UA_NodeReleaseHandleList
✔
Terminate connection of a current session with an OPC UA
server
UA_Disconnect
A5E33284667-AF Page 71
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
Schematic flow:
Web server
✔
✔
✔
✔
Synchronize user-defined web pages
WWW
Fail-safe HMI panels
✔ ✔ ✔ ✔ For Mobile Panel 277 F IWLAN:
Communication with connected device via PROFIsafe
F_FB_MP
✔ ✔ ✔ ✔
For Mobile Panel 277 F IWLAN:
Managing of up to 4 panels in the effective range
F_FB_RNG_4
A5E33284667-AA Page 72
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
✔ ✔ ✔
For Mobile Panel 277 F IWLAN:
Managing of up to 16 panels in the effective range
F_FB_RNG_16
✔ ✔ ✔ ✔
For Mobile Panels of the second generation:
Communication with connected device via PROFIsafe
F_FB_KTP_
Mobile
✔ ✔ ✔ ✔
For Mobile Panels of the second generation:
Managing of panels in the effective range
F_FB_KTP_RNG
Modbus TCP
✔
✔
Communicate via PROFINET as Modbus TCP client
MB_CLIENT
✔
✔
Communicate via PROFINET as Modbus TCP server
MB_SERVER
✔ ✔ Communicate redundantly via PROFINET as MODBUS
TCP client
MB_RED_CLIENT
✔ ✔
Communicate redundantly via PROFINET as a MODBUS
TCP server
MB_RED_SERVER
✔ ✔
Establish communication between a CPU with integrated
PN interface and a partner that supports the Modbus/TCP
protocol.
MODBUSPN
✔
✔
Connection management
TCP_COMM
✔
✔
Communicate via Ethernet as Modbus TCP client
MOD_CLI
✔
✔
Communicate via Ethernet as Modbus TCP server
MOD_SRV
A5E33284667-AF Page 73
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
Communications processors
Not for S7-1500 Software Controller CPU 150xS
Point-to-Point or PtP communication
S7-300/400: Commands for ET 200SP CM PtP
✔ ✔ ✔ ✔
Configure PtP communication port
S7-300/400: Only if ET 200SP CM PtP is used
Port_Config
✔
✔
✔
✔
Configure PtP sender
Send_Config
✔
✔
✔
✔
Configure PtP recipient
Receive_Config
✔
✔
✔
✔
Configure 3964 (R) protocol
P3964_Config
✔
✔
✔
✔
Send data
Send_P2P
✔
✔
✔
✔
Receive data
Receive_P2P
✔
✔
✔
✔
Delete receive buffer
Receive_Reset
✔
✔
✔
✔
Read status
Signal_Get
✔
✔
✔
✔
Set accompanying signals
Signal_Set
✔
✔
✔
✔
Get extended functions
Get_Features
✔
✔
✔
✔
Set extended functions
Set_Features
A5E33284667-AA Page 74
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
Instructions with lower memory requirements, but also less
functional scope.
Recommendation: Use the instructions
specified above. You cannot apply the
instructions decentrally in an ET 200.
✔
Configure communication parameters dynamically
PORT_CFG
✔
Configure serial transmission parameters dynamically
SEND_CFG
✔
Configure serial receive parameters dynamically
RCV_CFG
✔
Transmit send buffer data
SEND_PTP
✔
Enable receive messages
RCV_PTP
✔
Delete receive buffer
RCV_RST
✔
Query RS 232 signals
SGN_GET
✔
Set RS 232 signals
SGN_SET
USS communication
S7-300/400: Commands for ET200SP CM PtP
✔
Edit communication via USS network
USS_PORT
✔
✔
✔
✔
Communication via USS network (16 drives)
USS_Port_Scan
✔
Communication via USS network (31 drives)
USS_Port_Scan_31
✔
Prepare and display data for the drive
USS_Drive
✔
✔
✔
✔
Data exchange with the drive (16 drives)
USS_Drive_Control
✔
Data exchange with the drive (31 drives)
USS_Drive_Control_31
A5E33284667-AF Page 75
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
✔
Read out parameters from the drive
USS_RPM
✔
✔
✔
✔
Read data from drive (16 drives)
USS_Read_Param
✔
Read data from drive (31 drives)
USS_Read_Param_31
✔
Change parameters in the drive
USS_WPM
✔
✔
✔
✔
Change data in drive (16 drives)
USS_Write_Param
✔
Change data in drive (31 drives)
USS_Write_Param_31
MODBUS (RTU)
S7-300/400: Commands for ET200SP CM PtP
✔
✔
✔
✔
Configure communication module for Modbus
Modbus_Comm_Load
✔
✔
✔
✔
Communicate as Modbus master
Modbus_Master
✔
✔
✔
✔
Communicate as Modbus slave
Modbus_Slave
Instructions with lower memory requirements, but also less
functional scope.
Recommendation: Use the instructions
specified above. You cannot apply the
instructions decentrally with a CM or in an
ET 200.
✔
Configure port on the PtP module for Modbus RTU
MB_COMM_LOAD
✔
Communicate via the PtP port as Modbus master
MB_MASTER
✔
Communicate via the PtP port as Modbus slave
MB_SLAVE
A5E33284667-AA Page 76
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
Point-to-point connection: CP 340
✔
✔
Receive data
P_RCV
✔
✔
Send data
P_SEND
✔
✔
Output alarm text with up to 4 tags to printer
P_PRINT
✔
✔
Delete receive buffer
P_REST
✔
✔
Read accompanying signals at the RS 232 interface
V24_STAT_340
✔
✔
Write accompanying signals at the RS 232 interface
V24_SET_340
Point-to-point connection: CP 341
✔
✔
Receive or provide data
P_RCV_RK
✔
✔
Send or fetch data
P_SND_RK
✔
✔
Output alarm text with up to 4 tags to printer
P_PRT341
✔
✔
Read accompanying signals at the RS 232 interface
V24_STAT
✔
✔
Write accompanying signals at the RS 232 interface
V24_SET
Point-to-point connection: CP 440
✔
✔
Receive data
RECV_440
✔
✔
Send data
SEND_440
✔
✔
Delete receive buffer
RES_RECV
A5E33284667-AF Page 77
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
Point-to-point connection: CP 441
✔
✔
Read accompanying signals at the RS 232 interface
V24_STAT_441
✔
✔
Write accompanying signals at the RS 232 interface
V24_SET_441
✔
Send data to printer
PRINT
MODBUS slave (RTU)
✔
✔
Modbus slave instruction for CP 341
MODB_341
✔
✔
Modbus slave instruction for CP 441
MODB_441
MODBUS: CP 443
✔ ✔
Establish communication between a CP and a partner that
supports the OPEN MODBUS/TCP protocol
MODBUSCP
✔
✔
Communicate as Modbus client
MB_CPCLI
✔
✔
Communicate as Modbus server
MB_CPSRV
A5E33284667-AA Page 78
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
ET 200S serial interface
Note: S stands for serial
✔
✔
✔
Receive data
S_RCV
✔
✔
✔
Send data
S_SEND
✔
✔
✔
Read accompanying signals at the RS 232 interface
S_VSTAT
✔
✔
✔
Write accompanying signals at the RS 232C interface
S_VSET
✔
✔
✔
Set data flow control using XON/XOFF
S_XON
✔
✔
✔
Set data flow control using RTS/CTS
S_RTS
✔ ✔ ✔
Configure data flow control via automatic Configure
operation of the RS 232C accompanying signals
S_V24
✔
✔
✔
Modbus slave instruction for ET 200S 1SI
S_MODB
✔
✔
✔
Send data to a USS slave
S_USST
✔
✔
✔
Receive data from a USS slave
S_USSR
✔
✔
✔
Initialize USS
S_USSI
SIMATIC NET CP
Open User Communication
✔ ✔
Passes data to the CP for transfer via a configured
connection
AG_SEND
✔
✔
Passes jobs to the CP for accepting received data
AG_RECV
✔
✔
Locks data exchange via a connection with FETCH/WRITE
AG_LOCK
A5E33284667-AF Page 79
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
✔
✔
Connection diagnostics
AG_UNLOCK
✔
✔
Connection diagnostics
AG_CNTRL
✔ ✔
Connection diagnostics, connection establishment, ping
request
AG_CNTEX
✔ ✔
Connection diagnostics, connection establishment, ping
request
AG_CNTEX
PROFIBUS DP
✔
✔
Data transfer to the CP as DP master or DP slave
DP_SEND
✔
✔
Data receipt from CP as DP master or DP slave
DP_RECV
✔
✔
Request of diagnostic information
DP_DIAG
✔
✔
Transfer of control information to the PROFIBUS CP
DP_CTRL
PROFINET IO
✔
✔
Data passing to the CP as IO controller or IO device
PNIO_SEND
A5E33284667-AA Page 80
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
✔
✔
Data receipt from CP as IO controller or IO device
PNIO_RECV
✔
✔
Read data record or write data record in IO controller
PNIO_RW_REC
✔
✔
Alarm evaluation through CP343-1 as IO controller
PNIO_ALARM
PROFIenergy
✔
✔
Triggering or ending an energy saving pause
PE_START_END_CP
✔
✔
Extended triggering or ending of an energy saving pause
PE_CMD_CP
✔ ✔
Processing of the commands of the IO controller in the
PROFIenergy device
PE_I_DEV_CP
✔ ✔
Transfer of the switch setting from power modules to ET
200S
PE_DS3_Write_ET200_CP
Other instructions
✔
✔
Use of a logical trigger for ERPC communication
LOGICAL_TRIGGER
✔
✔
Setup of FTP connections from and to an FTP server
FTP_CMD
A5E33284667-AF Page 81
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
GPRSComm:CP 1242-7
✔
Establish connection via GSM network
TC_CON
✔
Terminate connection via GSM network
TC_DISCON
✔
Send data via the GSM network
TC_SEND
✔
Receive data via the GSM network
TC_RECV
✔
Transfer configuration data to CP
TC_CONFIG
S7-300C functions
ASCII, 3964®
✔
Send data (ASCII, 3964(R))
SEND_PTP_300C
✔
Fetch data (ASCII, 3964(R))
RCV_PTP_300C
✔ Reset input buffer
(ASCII, 3964(R))
RES_RCVB_300C
RK 512
✔
Send data (RK 512)
SEND_RK_300C
✔
Fetch data (RK 512)
FETCH_RK_300C
✔ Receive and provide data
(RK 512)
SERVE_RK_300C
A5E33284667-AA Page 82
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
Communication with iSlave
✔ ✔
Read data from a communication partner within the local
S7 station
I_GET
✔ ✔ Write data to a communication partner within the local S7
station
I_PUT
✔ ✔
Abort a connection to a communication partner within the
local S7 station
I_ABORT
PROFINET CBA
✔
✔
Update the inputs of the user program interface
PN_IN
✔
✔
Update the outputs of the user program interface
PN_OUT
✔
✔
Release DP interconnections
PN_DP
A5E33284667-AF Page 83
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
MPI communication
Note: X stands for the MPI interface
✔ ✔
Send data to a communication partner outside the local S7
station
X_SEND
✔ ✔ Receive data from a communication partner outside the
local S7 station
X_RCV
✔ ✔
Read data from a communication partner outside the local
S7 station
X_GET
✔ ✔
Write data to a communication partner outside the local S7
station
X_PUT
✔ ✔
Abort an existing connection to a communication partner
outside the local S7 station
X_ABORT
TeleService
✔
Transfer email
TM_MAIL
✔
✔
Establish remote connection to programming device/PC
PG_DIAL
✔
✔
Establish remote connection to AS
AS_DIAL
✔
✔
Send text (SMS) message
SMS_SEND
✔
✔
Transfer email
AS_MAIL
A5E33284667-AA Page 84
Appendix Optional instructions
Appendix Optional instructions
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
SIMATIC Ident
✔
✔
✔
Read data from transponder
Read
✔
✔
✔
Read out data from code reading system
Read_MV
✔
✔
✔
Reset reader
Reset_Reader
✔
✔
✔
Set program at code reading system
Set_MV_Program
✔
✔
✔
Write data to the transponder
Write
Status queries
✔
✔
✔
Read out status of the reader
Reader_Status
✔
✔
✔
Read out status of the transponder
Tag_Status
Extended functions
✔
✔
✔
Load the configuration data to the reader
Config_Download
✔
✔
✔
Back up configuration data from the reader
Config_Upload
✔
✔
✔
Detect transponder population
Inventory
✔ ✔ ✔ ✔
Read out data of the TID memory of a
transponder
Read_TID
✔
✔
✔
✔
Read out UID of an HF transponder
Read_UID
✔
✔
✔
✔
Switch on/off antenna of RF300 readers
Set_ANT_RF300
A5E33284667-AF Page 85
Appendix Optional instructions
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
✔
✔
✔
✔
Set UHF parameters in the reader
Set_Param
✔
✔
✔
✔
Write EPC ID of a UHF transponder
Write_EPC_ID
✔ ✔ ✔ ✔
Ident function for trained users with command
transfer in a data structure
Advanced_CMD
✔ ✔ ✔ ✔
Complex Ident function for experts with all
commands and possibilities
Ident_Profile
Legacy
✔ ✔ ✔
Read out data of the EPC memory of a
transponder
Read_EPC_Mem
✔
✔
✔
✔
Write EPC memory of a UHF transponder
Write_EPC_Mem
✔
✔
✔
✔
Switch on/off antennas of RF620R/RF630R
Set_ANT_RF600
✔
✔
✔
✔
Reset MOBY D reader
Reset_MOBY_D
✔
✔
✔
✔
Reset MOBY U reader
Reset_MOBY_U
✔
✔
✔
✔
Reset MV code reading device
Reset_MV
✔
✔
✔
✔
Reset RF200 reader
Reset_RF200
✔
✔
✔
✔
Reset RF300 reader
Reset_RF300
✔
✔
✔
✔
Reset RF600 reader
Reset_RF600
✔ ✔ ✔ ✔
Reset function for experts allows universally
adjustable parameters
Reset_Univ
A5E33284667-AA Page 86
Appendix Optional instructions
S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD STL
(not S7-1200) SCL
Energy Suite
✔ ✔
Calculate operating-mode-related energy data of
machines and systems for uniform efficiency
evaluation according to measuring regulation
EnS_EEm_Calc
✔ ✔
Create efficiency protocol in CSV format on the
SIMATIC memory card of the CPU
according to
measuring regulation
EnS_EEm_Report
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Digital Factory
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DEUTSCHLAND
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A5E33284667-AF
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