
Appendix C
Troubleshooting
C-4
ni.com
Runaway Start-Up Application
If a runaway startup application causes the FP-20
xx
to become
unresponsive, you must power down the FP-20
xx
, then reboot it with either
the DISABLE VI switch or SAFE MODE switch in the ON position.
Restarting the module with the DISABLE VI switch ON prevents any VIs
from running at startup. Restarting it with the SAFE MODE switch ON
starts the FP-20
xx
in safe mode, and the embedded LabVIEW RT engine is
not launched. Refer to the
section of Chapter 4,
, for more information about these DIP switches.
STATUS LED Error Indications
The FP-20
xx
indicates specific error conditions by flashing the red
STATUS
LED a specific number of times. The following table describes
the
STATUS
LED flashing sequences and the corresponding error
condition.
Table C-1.
STATUS LED Flashes and Corresponding Error Conditions
Number
of Flashes
Error Condition
0 (stays lit)
The FP-20
xx
did not power on correctly. Contact
National Instruments for assistance.
1
The FP-20
xx
is in reset mode or is unconfigured.
Refer to Appendix B,
, for more
information about reset mode. Refer to Chapter 3,
Hardware and Software Configuration
, for more
information about configuration.
2
The FP-20
xx
has detected an error in its firmware. This
usually occurs when an attempt to upgrade the firmware
is interrupted. Repeat the firmware upgrade process.
3
The FP-20
xx
is in safe mode. Download the software as
described in Appendix D,
4 (or more)
The FP-20
xx
has detected an unrecoverable error.
Contact National Instruments for assistance.