Siemens SIMATIC S5 Equipment Manual

Programming Instructions
R 02/92
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
S5– 135U (PLCS S5– 150U and S5– 155U). The number of the first relevant data word (DW n) can
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
DBDW :
PAFE :
9 – 30
in the LAD/CSF (ladder diagram/controI system
flow chart)
FB 158
P
1P 241 Equipment Manual
@ Siemens AG 1989, order No.: 6ES5 998-0KD21
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Siemens SIMATIC S5 Specifications

General

Product type designation	SIMATIC S5
Programming language	STEP 5
Digital inputs	Varies by model
Digital outputs	Varies by model
Analog inputs	Varies by model
Analog outputs	Varies by model
Supply voltage	24V DC
CPU Type	Varies by model
Memory	Varies by model
Digital I/O	Varies by model
Analog I/O	Varies by model
Communication	PROFIBUS
Operating Temperature	0°C to 60°C
Relative Humidity	5% to 95% (non-condensing)