Hello,
i have a quiet odd one.
I need to read a string value from a datablock from a Siemens 15XX generation PLC, the value is changing once per second as seen in the gif below:
Now when i try to read that value with an OPC tag, i end up in this situation:
As you can see, the value alternates between good quality and bad quality.
Does anybody know what might be the cause of this?
zxcslo
2
How long is the string in the Siemns PLC?
Show us, how you configured the tag in the Ignition.
My guees is, that the string lenght exceedes the max lenght of the Siemens driver in Ignition...
https://forum.inductiveautomation.com/t/s7-400-udt-string-addressing/96375/2?u=zxcslo
I now configured the tag in ignition to 208 (shorter than 210) and it does not change the situation:
Take the length off the OPC Path and try without.
