Emerson FB2200 - Connecting to COM2 and COM3

Emerson FB2200 Flow Computer Instruction Manual
D301784X012
March 2019
Installation 57
Figure 2-45. Connecting a Device to COM1 Using RS-485
1
RS-422 Port on other device
Regardless of the interface standard (RS-232, RS-422, or RS-485) you must use FBxConnect to
configure the port for proper usage.
Connecting to COM2 and COM3
COM2 and COM3 operate identically. Each can be configured for either RS-232 or RS-485
communication.
When connecting COM2 or COM3 to an RS-232 port on another device (a PC or another
controller/flow computer) use a cable with configurations as shown in Figure 2-46: