Post moved here from a topic follow-on as worthy of new topic.  Original post is this one: Hello  I am trying to set up a V350 as a slave of a master device that uses Modbus ASCII.  I understood that Visilogic does not handle Modbus ASCII. I want to get arround this by using a Modbus ASCII to Modbus RTU converter. However the master uses Modbus function code 22 (write multiple registers) and function code 23 (read, write multiple registers). Will the  V350 understand these comm