03-10-2022, 12:55 PM
you can't read "switch terminal board" input by COLB. H32BS have this function, unlink switch input with relay output, just feedback key message. But if you want do it by H32B, i suggest you get the message from "switch terminal board" directly, if you server is long distance with "switch terminal board", if you can't connect it with RS232 cable, i think you can use a RS232-Ethenret adapter, just let RS232 message send to network to your server, then you can do your logical for relay controller according to the switch terminal board's input.