CODESYS - the IEC 61131-3 automation software

Function of MC_TouchProbe...
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Author:  JamesPeng_TW [ Tue Jul 17, 2018 6:49 am ]
Post subject:  Function of MC_TouchProbe...


I'm currently working in SM3_Basic, and control the axis in CiA402 axis.

For the FB "MC_TouchProbe", I could only get a single measurement function.
But most of the modern ethercat servo drive support permanent measurement(usually set Touch Probe Function control word bit 1 := 1) which means execute edge activates function until abortion by MC_AbortTrigger. I have tried to modify the Touch Probe Function control word in the program through direct access the address, but it is not changed. Is there any other way I could do this?
Any comment/ advice is appreciated and thanks in advance.


Author:  Edwin Schwellinger [ Thu Jul 19, 2018 2:28 pm ]
Post subject:  Re: Function of MC_TouchProbe...

Hi James,

hm.. you could remove the Objects from control word /pdo data and use SDO's to start the touchprobing manually.
Not nice but maybe works..


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