Deleting a Modbus RTU master
A Modbus RTU master can only be deleted by deleting the associated UR20-1COM-232-485-422 I/O module.
NOTICE


Deleting a Modbus RTU master deletes all subordinate slaves as well. It also deletes all data items associated with these slaves including their mapping to global variables.
- Open the device view.
- Delete the UR20-1COM-232-485-422 u-remote I/O module that contains the master.