Using The Positioning Module In Multiprocessor Operation (Applies Tothe S5-135U And S5-155U) - Siemens SIMATIC S5 Manual
Positioning module
1p 247
for stepper motors
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Also See for SIMATIC S5:
- Manual (396 pages) ,
- Equipment manual (197 pages) ,
- Operating instructions manual (43 pages)
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Note
To save and load the scratchpad flag area you must use the standard function
blocks FB38 and FB39. The function blocks operate with a data block (see example
in Section 6.4, DB255). This must be created up to and including data word DW820.
The function blocks must be used in pairs, i.e. the interrupt OBS must not be exited
prematurely with the statement BEC.
6.1.3
Using the Positioning Module in Multiprocessor Operation (applies to
the S5-135U andS5-155U)
If the positioning module is used in a programmable controller with more than one processor,
you must ensure that an axis is only ever addressed by one CPU module.
Note
Access by several CPUS to the same axis is not permitted and leads to program er-
rors,
Genera/ Notes
,
6 - 5
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