Emerson FB1200 - General Wiring Guidelines

FB1200 Flow Computer Quick Start Guide
D301786X012
November 2023
19
1
RS-485 (2-wire) port (COM2) on FB device
2
RS-485 (2-wire) port on external device
COM3 (Unit has optional I/O):
COM3 does not have its own GND terminal. Use either GND terminal on the COM1
terminal block.
1
RS-232 port (COM2) on FB device
2
RS-232-port on external device