I am looking to see if anyone has experience will using a plc to connect to more than 32 devices as fast as possible using Modbus TCP/IP. The plc will not drop a connection until after 5 secs after all the rungs with the read and write to that device is disabled. Not sure how to accomplish interlocking, looking for advice/guidance. I have looked at all of Automation Direct's resources and videos. Has anyone had success using there auto polling feature, and/or know how well it works in practice.