Dear,
Which Type you are looking for.
I think you can use 1746-SIM for all SLC 16-point,24 volt.
For more details you can visit the folloeing WEB.
http://www.ab.com/catalogs/b113/slc/iosimulator.html
Regards
Abbadi
Dear,
First in SCADA side:
What is your SCADA system ?.is your PLC RTU for SCADA or it connected via another RTU? what is the protocol used?. Those question I think guide you to right selection.
up to my knowledge AB PLCs can easily communicated with any system support the MODBUS and I think...