Emerson FB1200 - Connecting a Device to COM2 or COM3 Using RS-232 (Without Optional I;O)

Emerson FB1200 Flow Computer Instruction Manual
D301782X012
March 2019
46 Installation
Figure 2-32: Connecting a Device to COM2 or COM3 Using RS-232 (without optional I/O)
1
RS-232 port (COM2) on FB device
2
RS-232 port on external device
3
RS-232 port (COM3) on FB device
When connecting COM2 or COM3 to an RS-485 port on another device (such as a transmitter), use
wiring as shown in Figure 2-33: