Function Description; Calling The Function Block - Siemens SIMATIC S5 Equipment Manual

Programming Instructions
9.4 Function Block FB 158 (PER:WSI)

9.4.1 Function Description

Function block FB 158 (PER:WSI) can be used to execute the same functions as function block FB
157 except that function block FB 158 transfers the parameters indirectly using the so–called
working data block.
The working data block must beat least seven (eight) data words long for PLCS S5–115U and
be determined with formal operands DBDW.
Function:
Control the 1P 241 digital position encoder module with indirect parameterization

9.4.2 Calling the Function Block

In the STL (statement list)
PLCS5–115U
PLCS5–135U
PLCS5–150U/S
PLCS5–155U
:JU FB158
NAME :PER:WSI
PAFE :
9 – 30
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in the LAD/CSF (ladder diagram/controI system
flow chart)
FB 158