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PS_87603341-Visitor
1-Visitor
March 3, 2023
Question

Regarding Writing on Tag and return a value

  • March 3, 2023
  • 1 reply
  • 933 views

Hello Team,

Here i want to know from all knowledgeable members of community, Is Kepware can return 0/False if it is unable to write value on PLC Tag. I am writing some integer value on my PLC Tag using Kepware but sometime it happens, there in no connectivity or Network issue so how I would be able to know, if kepware has written a vale on perticular Tag.

 

Regards

Pankaj  

 

 

 

1 reply

C
cmorehead13-Aquamarine
13-Aquamarine
March 9, 2023

@PS_876033

 

Unfortunately, Kepware cannot return 0/False if it is unable to write a value on PLC Tag due to a possible connectivity or network issue. The only indication of an issue in a Client application would "Bad" tag quality. There would also be a KEPServerEX Event Log message stating the Device did not Respond. A popular solution would be monitor the KEPServerEX Device System Tag called "_Error".  The "_Error" is used to monitor the connection between the Device and the server. Here is a link to the Kepware Knowledge Base article on the Device Level System Tag:

 

https://www.ptc.com/en/support/article/CS294815

 

Thanks,

*Chris

 

 

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