Hello,
I'm new to AB+RSLinx configuration and we use GE rx3i + OPC Driver + Cimplicity. I'm trying to port GE program to AB PLC and got some problems.
GE does synchronization with OPC server (Proficy Driver Server) between the scans. So it runs the code from the start to the end and then update the points - send/receive to/from OPC/HMI.
Looks like for AB it works in different way.
Here is and example of pseudo code that works in GE fine and not well in AB:
// CMD - point that is set in HMI if (CMD == 1) then DO_SOME_LOGIC1 ..... .... if (CMD == 2) then DO_SOME_LOGIC2 ...... ...... ..... CMD = 0
In AB sometime CMD is set to 0 without checking on previous lines. So it means it comes to PLC in the middle of the program execution. (I know how to fix this issue by changing the code)
My question is : Is this configurable? Can the communication run in the same way as GE controllers do?