Communication SNAP-SCM-232

[Beno]

This forum post should get you going;

PAC Control 101: Communication Handles

What’s a Communication Handle, and when would I want to use one? OVERVIEW: A Communication Handle will allow you to: Communicate with another device via SERIAL connection, like RS-232 or RS-485. This could be an Opto 22 product like our LED dimmer, or just about anything with a 232/485 port, like a GPS receiver. The physical connection can be either on your PAC-R, or PAC-S series controller, or via one of our serial SNAP-SCM- modules on the same rack as a PAC-R or PAC-EB series controller/br…

Also there are many more hints and tips here;
https://forums.opto22.com/search?q=comm%20handle