DOCA0272EN-00

PLC requirements

In order to work, the function blocks in the TeSys™ island function block library for TIA Portal require specific Extended Instructions to be available on the PLC. The instructions required, and the versions of these instructions that the library was tested for, are as follows:

  • IO2MOD V1.1

  • DPRD_DAT V1.0

  • LOG2GEO V1.2

  • RDREC V1.0

  • WRREC V1.1

At the time of writing this document, these instructions are all available on any Siemens SIMATIC S7-1200 PLC with firmware version V4.1 and above, or SIMATIC S7-1500 PLC with firmware version V1.0 and above.

For more details on the availability and usage of the instruction listed above, refer to the Siemens TIA Portal Information System and the other Third Party Documentation by Siemens.

NOTE: The resources for acyclic communication through the instructions RDREC and WRREC are limited on the Siemens PLCs. Therefore, all function blocks in the library using acyclic communication provide an interlocking input to inhibit acyclic communication, should that be required. See Acyclic Data for more details.
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