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I am currently working with a PLC-Open implementation that does not support hardware limit-switches in the Target.
Is there anyway that I can map/update the limit-switch structure in user application-space?
Paramenter #1206 AXIS_REF.bHWLimitEnable must ofcourse be true, but where and how it the pointer-mapping and/or update for these inputs done?
I need this on a modulo-configered axis, which is actually a linear axis, but needs modulo-positioning due to absolute position excceding 2^31 increments which is not handled correctly in PLC-Open Softmotion.
Right now I have my own handling implemented, but I would like to also pass limit-switches to the Softmotion-library to have 'belt & suspenders' solution.
Regards
Nicolai Hanssing
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Anonymous
-
2012-04-02
Originally created by: Nicolai_Hanssing
Soem investigation shows these FB might be relevant:
From the text-description it is not clear exactly how this could be used, but I suppose it would normally reside in the Drive-cycle Execute_Start-call handled by the driver-lib.
But which to use, and how to use it in user-space?
Nicolai Hanssing
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
Originally created by: Nicolai_Hanssing
Hi,
I am currently working with a PLC-Open implementation that does not support hardware limit-switches in the Target.
Is there anyway that I can map/update the limit-switch structure in user application-space?
Paramenter #1206 AXIS_REF.bHWLimitEnable must ofcourse be true, but where and how it the pointer-mapping and/or update for these inputs done?
I need this on a modulo-configered axis, which is actually a linear axis, but needs modulo-positioning due to absolute position excceding 2^31 increments which is not handled correctly in PLC-Open Softmotion.
Right now I have my own handling implemented, but I would like to also pass limit-switches to the Softmotion-library to have 'belt & suspenders' solution.
Regards
Nicolai Hanssing
Originally created by: Nicolai_Hanssing
Soem investigation shows these FB might be relevant:
SMC_HardwareEndSwitches(
bLow:= ,
bHigh:= ,
Axis:= ,
bOutOfArea=> );
SMC_HardwareEndSwitches_Config(
bLow:= ,
bHigh:= ,
Axis:= ,
bOutOfArea=> );
From the text-description it is not clear exactly how this could be used, but I suppose it would normally reside in the Drive-cycle Execute_Start-call handled by the driver-lib.
But which to use, and how to use it in user-space?
Nicolai Hanssing