Hi I am unable to connect to more than 2 Siemens PLCs using ISOTCP.
I have configured a single S3&400 topic with no address so that the address can be explicitly specified for each tag, update rate is default 2000mS.
The first 2 systems (S7-1500) added to the Flexy communicate using this server/topic no problem but the 3rd PLC (S7-1200) shows no connection. I’ve tried a second topic/server for the S7-1200 with and without specific IP address but that doesnt work either.
I’ve also tried a 3rd S7-1500 using ISOTCP but this didn’t work either and would only work using a separate OPC-UA server topic.
Unfortunately I cannot get the S7-1200 to work using OPC-UA as the PLC tags are not visible and anyway my preference is for my PLCs to be connected using the same method & server type.
I’ve followed all the instruction on server setup but can’t get more than 2 PLCs to connect with ISOTCP.
Any help would be appreciated.