CODESYS - the IEC 61131-3 automation software

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PostPosted: Tue Jul 17, 2018 6:49 am 
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Joined: Fri Jun 22, 2018 4:32 am
Posts: 12
Hi~

I'm currently working in SM3_Basic, 4.3.2.0 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.

James


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PostPosted: Thu Jul 19, 2018 2:28 pm 
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Joined: Mon Sep 05, 2005 9:42 am
Posts: 3020
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..

BR
Edwin


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