The Microview Operator Interface was not made to work with SLC 5/03 PLCs, or any other except for the MicroLogix. To make it work would require some engineering and a custom-made cable. Even then there could be problems. Many SLC 5/03 will not have the 24 volt DC power available. The RS-232 port on the SLC 5/03 has a different pin configuration than the MicroLogix.