Chapter 12 LED Indicators and Troubleshooting
GFK-2958E RSTi-EP User Manual 399
Green: Supply voltage for input
current path > 18 V DC
Red: Supply voltage for input
current path < 18 V DC
Red: Internal fuse defective
Replace the network adapter
Green: Supply voltage for output
current path > 18 V DC
Red: Supply voltage for output
current path < 18 V DC
Red: Internal fuse defective
Replace the network adapter
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
Red: Configuration error, or error in
the network adapter, or error in a
module, or there is a new
diagnostic message
Check that the GSDML 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
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 GSD file is up-to-date
Check if the configured station setup matches
the actual setup
Yellow: Error on the system bus
Check that the modules have been snapped
into place properly
Green: Connection established
between port 1 of the network
adapter and another field device
Check the connection to the next participant
and the fieldbus cable
Yellow flashing: Data being
exchanged on port 1
Green: Connection established
between port 2 of the network
adapter and another field device
Check the connection to the next participant
and the fieldbus cable