Wiring

 

Wiring to the Series 9220 operator interface  can be done using 232 or 485 to connectors on the back of the screen, comm1 (232) or comm3 (485).  The plug on the back of the operator interface is used to connect 24VDC power. The DB-female 9 port A connection is used to connect the display via 232 to the Series 9220 controller. Terminals 3(-) and 4(+) can be used for 485 communications to the screen. The controller terminals 5(-) and 6(+) are connected via RS485 communication to the single-loop controllers or Client instrumentation.