Hi,
I need to use digital PWM signal, the current selection is Beckhoff EL2502 2ch PWM module. I added a device description file, but there are only 2 channels in IO MAPPING to adjust the duty option and no option to adjust the frequency.

I have consulted the documentation and the frequency needs to be written in the CoE cycle. I'm not quite able to understand this problem. I see EL2502 's startup Parameters with the PWM settings option to change the frequency, but I need to change the frequency with the requirements in the PLC. I suppose I could be configuring the Expert process data in EK1100. I don't quite understand how to relate it to a variable.

What I want to do is similar to Schneider's FB


EL2502 Module Documents at [https://www.beckhoff.com/english/ethercat/el2502.htm](https://www.beckhoff.com/english/ethercat/el2502.htm)

Thank you.

It looks like this setting can be used.
I don't have a module test yet, if someone has used it, please tell me if I can use it. Does it continue to output?
Thanks.

Hi,
either map it to the PDO's or send the SDO from your application by SDO send.
http://store.codesys.com/ethercat-example.html

BR
Edwin

Edwin Schwellinger hat geschrieben:
Hi,
either map it to the PDO's or send the SDO from your application by SDO send.
http://store.codesys.com/ethercat-example.html
BR
Edwin

Thank you very much.