I specified two AB7072 serial to Ethernet IP converters for my Controllogix panel. The one in service as a normal RS485 Modbus link works fine but upon contacting tech support for the RS232 Modbus field device (its a gas turbine throttle valve) I have been told that it runs Modbus ASCII rather than the Modbus RTU… I wish it had said that in the manual!
Now I need to convert my Modbus RTU setup in the AN7072 to be Modbus ASCII. Your manual says that the unit is capable of ASCII but the wizard is only configured to setup RTU. Could some offer any help of an easy solution?