Emerson FB3000 User Manual

FB3000 RTU Instruction Manual
D301851X012
November 2023
78 Service and Troubleshooting
LED
Color/State
Meaning
Termination
Board Status
GREEN
Personality module OK
RED
Personality module missing or
mismatched type.
Flashes at 5-second interval when
CPU SRAM battery power low.
Flashes at 1-second interval when
CPU SRAM battery power is low and
personality module is invalid.
USB
Flashing GREEN
USB receive or transmit in progress.
Flashing GREEN with Module
Status LED alternating RED
and ORANGE and
Communication Status LED
also flashing RED.
CPU module is in wrong slot (must be
in slot 1). If this sequence occurs at a
rate faster than approximately every
half-second, indicates a hardware
failure. Return CPU to factory for
repair.
COM1, COM2,
COM3, COM4
GREEN
Receive on this port in progress.
RED
Transmission on this port in
progress.
ORANGE
Receive and transmit in progress.
Off
No transmissions active
ISO+T
GREEN
RS-485 communications enabled on
COM3 or COM4
V+
GREEN
Power applied to personality module.
Special Diagnostic LED Sequence
A repeating sequence of: Module Status GREEN then OFF, Communication Status RED then
OFF, USB GREEN, then OFF indicates a hardware failure: return the CPU module to factory
for repair.

Emerson FB3000 Specifications

General

Brand	Emerson
Model	FB3000
Category	Touch terminals
Language	English