Siemens Simatic S7-300 Manuale utente

Edition 12/2014

Reference manual

SIMATIC

S7-1200 / S7-1500

Comparison list for programming languages based on the international mnemonics

A5E33285102-AB Page 1

Comparison list for S7-300, S7-400, S7-1200, S7-1500

Reference manual

Legal information

Warning notice system

This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent damage to property. The notices

referring to your personal safety are highlighted in the manual by a safety alert symbol, notices referring only to property damage have no safety

alert symbol. These notices shown below are graded according to the degree of danger.

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 can result if proper precautions are not taken.

NOTICE

indicates that property damage can 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 safety alert symbol may also include a warning relating to property damage.

A5E33285102-AB 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 in the relevant technical documentation. If products and

components from other manufacturers are used, these must 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

permissible ambient conditions must be complied with. The information in the relevant documentation must be observed.

Trademarks

All names identified by ® are registered trademarks of

Siemens AG. The remaining trademarks in this publication may be trademarks whose use

by third parties for their own purposes could violate the rights of the owner.

Disclaimer of liability

We have reviewed the contents of this publication to ensure consistency with the hardware and software described. Since varia

nce cannot be

precluded entirely, we cannot guarantee full consistency. However, the information in this pu

blication is reviewed regularly and any necessary

corrections are included in subsequent editions.

Siemens AG

Digital Factory

Postfach 48 48

90026 NÜRNBERG, Germany

Comparison list for S7-300, S7-400, S7-1200, S7-1500

12/2014

A5E33285102-AB Page 3

Overview of the comparison list

•Measuring runtime of instructions and program parts (see below)

•Loading objects to the CPU: which changes and which changed blocks you can load to the CPU in which

operating mode. (next page)

•Overview, requirements, framework conditions and legends to the comparison list (page 7)

•Comparison list for S7-300, S7-400, S7-1200, S7-1500 including CPU 150xS software controller:

Which instructions and functions can be used for which controller family. (from page 8)

•Annex: Optional instructions for SIMATIC Ident

Measuring runtime of instructions and program parts

The runtime of parts of the user program and instructions depend on numerous factors. A tabular list is therefore not possible.

The RUNTIME (runtime measurement) instruction is used to measure the runtime of the entire program, individual blocks or

command sequences. The runtime measurement starts with the first call of the RUNTIME instruction and ends with the

second call.

For the runtime measurement of individual instructions, you use an OB priority >15. As a result, “Monitor online” does not

falsify the runtime. You can find additional information in the SIMATIC STEP 7 online help. Enter “Runtime” in the search box.

Program example in SCL:

“Common_Data“.opt.Last_Cycle := RUNTIME(#Tag_Memory); //Start of 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 runtime measurement

The Last_Cycle tag contains the time that has elapsed between the previous call and the current call of RUNTIME.

A5E33285102-AB Page 4

Loading objects to the CPU

The table shows which changes and which changed blocks can be loaded in which operating mode.

Very complex programs can prevent loading in RUN mode. Possible solutions:

•Use a memory card with sufficient capacity.

•Select a CPU with sufficient work memory.

•Reduce the number of changed used blocks, constants, PLC tags or data types.

Changes and blocks S7-300 S7-400 S7-1200

as of V4.0

S7-1500

V1.7

S7-1200

V1.0 - 2.1

S7-1200

V2.2 - V3.0

S7-1500

V1.0-V1.6

Changed properties of HW

components

STOP

Added HW components

STOP

New/changed text lists

(Alarms)

RUN

STOP

Download number of blocks

RUN (<17)

RUN (<57)

RUN (<21)

RUN

STOP

RUN (<11)

RUN

Download PLC program to

device and reset

STOP

(Reset)

STOP

(Reset)

STOP

(Reset)

STOP

(Reset)

STOP

(Reset)

STOP

(Reset)

STOP

(Reset)

New OB

RUN

STOP

RUN

STOP

RUN

Changed OB: Code changes,

change of comments

RUN

STOP

RUN

OB with changed properties

(e.g. cycle time change)

RUN

STOP

RUN

STOP

RUN

Deleted OB

RUN

STOP

RUN

STOP

RUN

A5E33285102-AB Page 5

Changes and blocks S7-300 S7-400 S7-1200

as of V4.0

S7-1500

V1.7

S7-1200

V1.0 - 2.1

S7-1200

V2.2 - V3.0

S7-1500

V1.0-V1.6

New FB/FC/DB/PLC data type

(UDT)

RUN

STOP

RUN

Deleted FB/FC/DB/PLC data

type (UDT)

RUN

STOP

RUN

Changed FB/FC: Code change,

change of comments

RUN

STOP

RUN

Changed FB/FC: Interface

change

STOP

RUN (Init)

STOP

RUN (Init)

Changed DB (no memory

reserve configured): Name/type

of tags changed, tags added or

deleted

RUN (Init)

STOP

RUN (Init)

Changed DB (memory reserve

configured): New tags added

RUN

RUN (Init)

Changed PLC data type

(UDT)

STOP

RUN (Init)

STOP

RUN (Init)

Changed PLC tags (added,

deleted, name changed)

RUN

STOP

RUN

A5E33285102-AB Page 6

Changes and blocks S7-300 S7-400 S7-1200

as of V4.0

S7-1500

V1.7

S7-1200

V1.0 - 2.1

S7-1200

V2.2 - V3.0

S7-1500

V1.0-V1.6

Changed retentivity settings (bit

memory area, DB area)

STOP

Motion Control technology

objects: Changes

to MC servo

cycle clock, change from

asynchronous to cyclic (and

vice

-versa). Changes to

the HW

interface of the TO

STOP

(init) means that the current values of the DBs are overwritten by start values during loading.

A5E33285102-AB Page 7

Structure of the comparison list

•Basic instructions

Instructions that you often use such as bit logic operations, timers, counters, mathematic functions

•Extended instructions

Sophisticated instructions for more options, such as date and time, interrupts, alarms, PROFIenergy

•Technological instructions (technology)

Technological functions, such as PID control, Motion

•Instructions for communication (communication)

Instructions for communication, e.g. S7 Communication, Open User Communication

Validity and framework conditions

•SIMATIC STEP 7 as of Version 13, as of service pack 1

•The contents of the S7-1500 column are valid also for SIMATIC S7-1500 Software Controller CPU 150xS

•SIMATIC S7-1200 as of firmware 3.x; SIMATIC S7-1200 supports only LAD, FBD and SCL.

•STL: you have to call some instructions via CALL.

Legend

✔

Applicable

(

✔

)

Applicable with limitations

Not necessary

gray

We recommend that you do not use the grayed out instructions in the S7-1200 or S7-1500, as these instructions

are unsuitable for symbolic addressing or multiple instances. SIMATIC counters and timers are not

recommended, as they are not multi-instance capable.

Xyz

New instruction as of SIMATIC STEP 7 V13.

For this purpose, SIMATIC S7-1200 requires at least firmware 4.0 and SIMATIC S7-1500 at least firmware 1.5

Xyz

New instruction as of SIMATIC STEP 7 V13 SP1.

For this purpose, SIMATIC S7-1200 requires at least firmware 4.1 and SIMATIC S7-1500 at least firmware 1.7

Xyz

Also available as safety instruction in the optional safety package in LAD and FBD.

A5E33284667-AB 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

Comparator operations

Math functions

Word logic operations

Shift and rotate instructions

Safety functions

Move

Load and transfer

Timers

Conversion operations

Legacy

Counters

Program control operations

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

Bit logic operations

✔

AND logic operation

✔

A5E33285102-AB Page 9

Extended instructions

Basic instructions

Communication

Technology

S7-300

S7-400

S7-1200

S7-1500

Description LAD / FBD STL

(not S7-1200) SCL

✔

OR logic operation

✔

>=1

✔

EXCLUSIVE or operation

✔

XOR

✔

Assignment

-( )-

-[=]

✔

Negate assignment

-(/)-

-[/=]

NOT

✔

Reset output

-(R)

-[R]

✔

Set output

-(S)

-[S]

✔

Set bit field

SET_BF

✔

Reset bit field

RESET_BF

✔

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>;

FP;

✔

Set operand on positive signal edge

-(P)-

R_TRIG

✔

Set operand on negative signal edge

-(N)-

F_TRIG

✔

Scan Boolean result for positive signal edge

P_TRIG

✔

Scan Boolean result for negative signal edge

N_TRIG

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