Emerson PACSystems RSTi-EP - Page 506

User Manual Section 12
GFK-2958L May 2021
LED Indicators and Troubleshooting 492
EPXETC001
Indicator
LED
Status
Recommended action
Power LED
PWR
Green: Supply voltage
Off, and the status LED of the
module is green: Defective
network adapter
Have the network adapter repaired or replaced
The internal fuse was triggered due to an
overload
Off, and the module status LED is
off: Improper supply voltage
Check the supply voltage
System Fault
SF
Red: Configuration error, or error
in the network adapter, or error in
a module, or there is a new
diagnostic message
Check that the ESI configuration file is up-to-
date
Check if the configured station setup matches
the actual setup
Read the diagnostic message with the web
server or an engineering tool and determine
which further actions to take
Red flashing: Station in Force mode
Bus Fault
BF
Red: No connection to the fieldbus
Check the fieldbus cable and the PLC
configuration
Red flashing: Configuration error,
no connection to the control unit,
or error in the parameter set
Check the fieldbus parameters and the PLC
configuration
Check that the ESI file is up-to-date
Check if the configured station setup matches
the actual setup
Maintenance
Required
MT
Yellow: Error on the system bus
Check that the modules have been snapped
into place properly
Connection/Active
L/A IN
Off: No connection
Check the fieldbus cable
Green: Connection established
between port 1 of the network
adapter and another field device
Green flashing: Data being
exchanged on port 1
Connection/Active
L/A OUT
Off: No connection
Check the fieldbus cable
Green: Connection established
between port 2 of the network
adapter and another field device
Green flashing: Data being
exchanged on port 2
Network Adapter
State
RUN
Off: Network adapter in INIT state
Green flashing: Network adapter in
PRE-OPERATIONAL state
Green lights up briefly: Network
adapter in SAFE OPERATIONAL
state
Green: Network adapter in
OPERATIONAL state
Internal Fault
ERROR
Red: Critical error in the network
adapter
Check that the ESI file is up-to-date. Check if
the configured station setup matches the
actual setup
Red lights up briefly: Error in the
network adapter application