User manual
13 LEDindicatorsandtroubleshooting | Fieldbus coupler
475Manual u-remote1432790000/08/12.2015
Coupler/indicator LED Status Recommended action
UR20-FBC-EIP
Power LED
PWR Green: Supply voltage
Off and the status LED on the module is green: Defective
coupler
Have coupler repaired or replaced
The internal fuse was triggered due to an overload
Off and the status LED on the module is off: Improper supply
voltage
Check the supply voltage
Collective error
SF Red: Conguration error, or error in the coupler, or error in a
module, or there is a new diagnostic message
Check if the congured station setup matches the actual
station setup
Read the diagnostic message with the web server or an
engineering tool and determine which further actions to take
Redashing: Station in Force mode
Module status
MS Red: More than one module does not t the start-up
conguration
Check if the station’s start-up setup matches the actual
station setup; restart coupler to dene a new start-up
conguration
Redashing: One module does not t the start-up
conguration or there is a diagnostic message on at least
one module
Check if the station’s start-up setup matches the actual
station setup; restart coupler to dene a new start-up
conguration
Read the diagnostic message with the web server or an
engineering tool and determine which further actions to take
Network status
NS Off: At least one EtherNet/IP connection is established
Yellow: Address conict or no IP address congured Assign address via web server or DHCP/BootP
Yellowashing (1Hz): valid IP address but no EtherNet/IP
connection established
Check the eldbus cable
Check the CLP conguration
Yellowashing (4Hz): Connection timeout on an exclusive
owner
Check the eldbus cable
Check the CLP conguration
Connection/active
L/A X1 Green / Yellow*: Connection established between port 1 of
the coupler and another eld device
Greenashing/Yellowashing*: Data being exchanged
on port 1
Off: No connection Check the connection to the next participant and the eldbus
cable
Connection/active
L/A X2 Green / Yellow*: Connection established between port 2 of
the coupler and another eld device
Greenashing/Yellowashing*: Data being exchanged
on port 2
Off: No connection Check the connection to the next participant and the eldbus
cable
Input supply voltage
3.1 Green: Supply voltage for input current path >18VDC
3.2 Red: Supply voltage for input current path <18VDC Check the supply voltage
3.4 Red: Internal fuse defective Replace the coupler
Output supply voltage
4.1 Green: Supply voltage for output current path >18VDC
4.2 Red: Supply voltage for output current path <18VDC Check the supply voltage
4.4 Red: Internal fuse defective Replace the coupler
*Green: transfer rate 100 Mbps; yellow: transfer rate 10 Mbps