Siemens SIMATIC S7-1200 Reference Manual page 8

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.
We recommend that you do not use the grayed out instructions in S7-1200 or S7-1500, because these
Grayed
instructions are not suitable for symbolic addressing or multiple instances. SIMATIC counters and timers are not
out
recommended because they do not have multiple instance capability.
New instruction as of SIMATIC STEP 7 V14.
Xyz
For this purpose, SIMATIC S7-1200 requires at least firmware 4.2 and SIMATIC S7-1500 at least firmware 2.0.
New instruction as of SIMATIC STEP 7 V15.
Xyz
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.
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