Weintek HMI no response from CP2EN

[robror_ 0]

Hi there!

 

I'm trying to communicate a Weintek cMT2128X with a CP2EN via Ethernet. The thing is I'm getting 'No device response' messages every 2-3 seconds. They'are connected at some point because some values are updated, but the connection error keeps showing up.

So far I've checked:

- Comm. settings are okay in both sides

- Wiring is good

- Happens the same with a CJ2 CPU.

- There are two arrays of 50 UINT each, I don't know if that's slowing things but that would surprise me...

 

I've worked with Weintek HMIs before (communicating with different CPUs: LOGO!, CP1, CJ2...) and never had this problem. I just set the IP addresses and everything was working fine, so I guess I'm missing something.

Hope you can throw some light at this!

Thanks in advance

[acpi 11]

Morning,

If some values are updated and in the same time you get a "no plc response" message that means one or several tags on the displayed screen can't be read in the plc. It could be a wrong adress, outside range, bad type etc. So you have to carrefully check all your tags.

JC