I have a customer that wants me to limit the value of the OPC tag from the PLC to a positive number. In other words, if the actual analog input falls below 0, I want to display 0 and store 0 to the history.
I thought tag clamping would be the way to do this, but it doesn’t work. Any ideas? I thought about putting an expression tag, but I’m using a lot of UDT’s and this would be difficult.