[etherlab-users] EL2502 problem

Michael Sagner msagner at msagner.de
Thu Jan 27 12:15:58 CET 2011

Hello -
This problem is still unsolved.
What do I have to do to adjust the PWM frequency?
Any hints appreciated.


-----Ursprüngliche Nachricht-----
Von: Andreas Stewering-Bone [mailto:ab at igh-essen.com] 
Gesendet: Mittwoch, 10. November 2010 09:54
An: Michael Sagner; etherlab-users at etherlab.org
Betreff: Re: [etherlab-users] EL2502 problem

Hello Michael,

the documentation makes a note about different Hardware Versions.

Changing the period via pdo mapping is only supported for version higher or
equal than 01.

Please show following outputs
-ethercat slaves -px -v
-ethercat pdos -px



Michael Sagner schrieb:
> I can set the pulse width of EL2502 PWM outputs without a problem, but 
> I’m at a loss when it comes to setting their frequency.
> According to the Beckhoff docs, index 0x1600/0x1601 must be 
> deactivated, and index 0x1602/0x1603 must be activated in order to do 
> this.
> Q: How do I do this using ecrt_.... commands? Are there any code 
> samples around somewhere?
> M. Sagner
> ----------------------------------------------------------------------
> --
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> etherlab-users at etherlab.org
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