Siemens SIMATIC S7-1200 Manuale utente

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

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

Comparator operations

Mathematical functions

Move

Word logic operations

Shift and rotate

Load and transfer

Times

Counter operationss

Conversion operations

Program control operations

Legacy 32

S7-300

S7-400

S7-1200

S7-1500

Description LAD/FBD STL

(not S7-1200) SCL

General

✔

Insert network

✔

Insert empty box

✔

Open branch

✔

(

✔

Close branch

✔

)

✔

Insert input

✔

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

✔

OR logic operation

✔

>=1

✔

EXCLUSIVE OR logic operation

✔

XOR

✔

Assignment

-( )-

-[=]

✔

Negate assignment

-(/)-

-[/=]

NOT

✔

Reset output

-(R)

-[R]

✔

Set output

-(S)

-[S]

(✔)

✔✔

Set bit field

S7-400: SFC 79 SET

SET_BF

(✔)

✔✔

Reset bit field

S7-400: SFC 89 RSET

RESET_BF nn nn

✔

Set/reset flip-flop

✔

Reset/set flip-flop

✔✔✔✔

Scan operand for positive signal edge

-|P|-

<Operand>;

FP;

✔✔✔✔

Scan operand for negative signal edge

-|N|-

<Operand>;

FN;

✔

Set operand on positive signal edge

-(P)-

R_TRIG

✔

Set operand on negative signal edge

-(N)-

F_TRIG

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