UCCNC 300ETH and RS485 Modbus Network problem

[kucharzb]

Hello,

I am still fighting with the following problem: UCCNC 300ETH and Modbus RS485 Network converter on the same network (router).

The following happens - I am having green communication in the Modbus Plugin (the parameters are changing constantly on the screnn, everything is ok), UCCNC is able to change the parameters of the Inverter - however as soon, as I click on the Spindle Start the communication stops: 1) the spindle starts, but 2) the numbers stop changing in the plugin and you can see that the transmission was stopped. I am then only able to stop the inverter manually. Sometimes similar thing happens also when I activate some relay from UCCNC software.

I tried to move the cables away and so on / this didnt change anything. I tried different converter RS485 to Ethernet / also no effect. Somehow I have the impression that UCCNC "overloads' the network and block other communication on it. Before I was using the simple switch and it wasnt really working together at all. With router it is better, but still not perfect.

UPDATE: The communication also stops, when I am not touching the software. It just works for some time, then suddenly stops (numbers stop changing in the Modbus plugin, but it stays green).

I can upload the video if someone would like to have a look.

Can anybody share some ideas/suggestions? Maybe somebody was having similar problem. I am using Mikrotik AC Lite as a router.

thanks!

[dezsoe]

Please, upload your profile and also, that video may help to find out something.

[fixebr]

Hey kucharzb. Is the cable from the VFD to the spindle shielded? Is there a ground connection, and is the cable screen connected to it?
There may also be interference from the VFD on the ethernet cable. Try changing them to cat6 (they have shield).

[kucharzb]

Here is my profile.

I turned off the macro which was running in background (it is however also attached) and still it happens that after few seconds, minute / the communication just stops...

And here is the link to the video: https://www.youtube.com/watch?v=5eIarAwlsE4

Also strange thing is - that using this macro and settings (at least I didnt change anything), it was already working perfectly... So either I had to accidentally change something, or I have no idea

[dezsoe]

Thanks! The last 7 seconds of the video is the most interesting part. There is a message from an exception that I have to investigate and I have no idea how it got there...