Appendix B
Troubleshooting and Common Questions
NI-FBUS Hardware and Software User Manual
B-10
ni.com
Module STATUS LED
The module
STATUS
LED is located on the front of the linking device,
between the two Fieldbus (H1 Network) connectors, as shown in
Figure B-2. It indicates whether the linking device is powered, configured,
and operating properly. Table B-3 shows how to interpret the
STATUS
LED states.
Standby state indicates the linking device has passed all self tests and is
ready to operate. However, it is not functioning because no active Ethernet
segment is configured.
Operational state indicates the linking device has left standby state because
the necessary network configuration (if any) has occurred.
3
The FBUS-HSE/H1 LD cannot communicate with the NIFBUS. Ensure that the
NIFBUS is running on the computer you specified when you configured the
FBUS-HSE/H1 LD.
4 (or more)
The FBUS-HSE/H1 LD has detected an unrecoverable error. Contact National
Instruments for more information of finding the cause of this error.
Table B-3.
Interpretation of
FBUS-HSE/H1 LD
Module STATUS LED
LED State
Meaning
Off
No power to linking device.
Flashing red and green
The FBUS-HSE/H1 LD is self-testing.
Flashing green
Standby state.
Solid green
Operational state.
Flashing red
Major recoverable fault.
Solid red
Major unrecoverable fault.
Table B-2.
Ethernet STATUS LED Flashes and Corresponding Error Conditions (Continued)
Number
of Flashes
Error Condition