Hi Jaroslav,

Please find the uploaded Twincat project bellow :

0_1565617345317_TwinCAT Project3_20190812.zip

Thx & grtz,

Kris

Modbus TCP I already managed , it only took me quite some time before I figured out how the addressing is working.

To use Ethercat on the RasPi I will need a dedicated ethernet port I guess, correct?

Grtz,

Kris

I am expecting a BK1120 to arrive by the end of next week. So better to postpone everything until then....

BTW, the link to the YouTube video isn't working for me....

Maybe I mixed things up....nevertheless Beckhoff is mentioning that the BK9000 is supporting 'Beckhoff real-time ethernet' which I tought is the same as EtherCAT.

Also in the documentation of the BK1120 Beckhoff is refering to the BK9000, altough I don't completely understand what they mean with this.....

This is my current setup (....with some second hand modules from ebay... )

I also did an export description to XML from the BK9000. At the moment I don't have another bus coupler but as far as I understand the documentation then the BK9000 is also supporting Ethercat.....

0_1565192288634_XML_export_BK9000.zip

So you need the exact hardware setup? I guess the order and type of all io-modules are needed? At the moment I'm playing around with the modbus coupler bk9000 and some DIO and AIO. But I do want to try the same with a BK1150 Ethercat bus coupler.
Would it be possible to change/create this file myself? Like I wrote it is just for playing around and learn some new things...

Somewhere on the old forum there was mentioned that Ethercat is one of the existing communication protocols, is there any news on this? Would I be able to use this to communicate with a Beckhoff bus coupler BK1150?

https://www.rexcontrols.cz/forum/viewtopic.php?id=64

Hi Tomas,

Thanks, this is indeed a working solution. I only needed to slow down the messages to 1 per second, which is still fine.

I"m trying to communicate with a Beckhoff BK9000 bus coupler and to reset the watchdog timer I need to send consecutively the values 0xBECF and 0xAFFE to a single register.

I only want to send this reset command when the watchdog timer elapsed due to some problem....

I'm not sure if this is possible with Rexygen......