OPC server having problem
i have 800xA Sytem, right now i have communication going on between third party server & 800xA aspect server trough OPC Communication .
right now i have facing problem regarding Tag Setpoint which is given by third party server to our 800xA System but problem is this setpoint is some times transfer to our system but sometimes same setpoint not transfer.
also we have same communication for othere line it is ok, but this is line 2 also one particular tag setpoint not transfer sometimes so what is the problem exactly.
can anyone give me answer
it's highly appriciated
thank's in advance.
I am not so sure. But you can cross check by this:
1) Always assign a INITIAL VALUE , ( here your Setpoint) which is here being written by your third party.
Like you can assign it as 0.0
2) Secondly check its OPC tag, that whether it has been attached to Correct OPC variable.. Sometime, after your new downlaod your path to variable may have changed,as per logic change, or some other change.
3) If these not worked, then write that setpoint on a new variable in your Coding software,with same property .