Manual VIPA CPU 21x Chapter 11 Integrated OBs SFBs SFCs
HB103E - Rev. 05/45 11-1
Chapter 11 Integrated OBs SFBs SFCs
Here you find the description of the integrated OBs, SFBs and SFCs of the
PLC-CPUs from VIPA for STEP

7 from Siemens.
The information about the listed blocks is valid for the CPUs 11x, 21x, 31x
and 51x.
Another part of the chapter are the VIPA specific SFCs that are exclusively
used with CPUs from VIPA.
Note!
Please regard that some VIPA specific SFCs are only integrated in certain
CPUs. For example, the SFCs for high-speed counter and pulse duration
modulation are only integrated in the CPUs of the System 100V.
The assignment of the according SFCs to the CPUs is to find in the sub-
chapter "VIPA specific SFCs".
Here you'll also find hints for the description of the VIPA specific SFCs.
The following text describes:
• Overview over the integrated OBs, SFBs, SFCs
• VIPA specific SFCs and their inclusion
• SFCs for access to the MMC
• SFCs for the System 100V
• SFC for access to TD 200
• SFCs for direct access to page frame and page frame communication
Outline
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