Connecting To Com1 - Emerson FB2100 Instruction Manual

FB2100 Flow Computer Instruction Manual
D301783X012
November 2023
Note
The optional local serial port connector on the base of the enclosure is hard-wired to
COM2.

Connecting to COM1

COM1 can be configured for RS-232 or RS-485 (2-wire), or RS-485 (4-wire)
communications.
When connecting COM1 to another device using RS-232, use a cable with configurations
as shown in
Figure 2-46.
1
When connecting COM1 to another device using RS-485 (4-wire), use a cable with
configurations as shown in
58
:
Figure 2-46
4 1 T 4 1 T
Connecting a Device to COM1 Using RS-232
RS-232 Port on other device
Figure 2-47
4 1 T
:
4 1 T
Installation