AB PLC controlling water flow


Thread Starter

Jerry Overton

I am an experienced C++ programmer with no experience with PLCs. Have An AB PLC controlling water flow, temp, ph) installed and software written by outside vendor. Want to expand the program (develop my own) to be able to tie more parameters together to better able to control the process.

The PLC is connected to a computer in my office over an ethernet connection. The info is stored in Excel spreadsheets(set up by the vendor) My questions...

Where do I learn more about this(free!)

Is the program stored on the PLC or on the computer in my office?

What format is the info that comes from the plc into my computer over the ethernet?

I would like to see some sample code to see how this is done

PLC Rookie