Emerson FB3000 - Connecting to COM2 (3 CPU16;3 CPUSG)

FB3000 RTU Instruction Manual
D301851X012
November 2023
32 Installation
2.10.2 Connecting to COM2 (3CPU16/3CPUSG)
You can configure the COM2 port on the CPU personality module for RS-232, RS-485 (4-
wire), or RS-485 (2-wire) communications.
When connecting COM2 to an RS-232 port on another device (a PC or another
controller/RTU) use a cable with configurations as shown in Figure 2-23:
Figure 2-23. Wiring COM2 on the CPU Module for RS-232
1
RS-232 port on device
2
Connect cable shields to suitable Instrument Earth connection point