Emerson FB2100 - Connecting to COM1

FB2100 Flow Computer Instruction Manual
D301783X012
November 2023
58 Installation
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
41T
Figure 2-46
41T
:
Figure 2-46. Connecting a Device to COM1 Using RS-232
1
RS-232 Port on other device
When connecting COM1 to another device using RS-485 (4-wire), use a cable with
configurations as shown in
41T
Figure 2-47
41T
: