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.
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: