
©NationalInstruments Corporation A-1 GPIB-ENET/100for Mac OS
APWR/RDY LED Signaling
Thisappendix describes how to interpret the PWR/RDY LED error codes.
PWR/RDY LED Overview
The PWR/RDY LED has severalpurposes on the GPIB-ENET/100.
Whenyou first power on the unit, the PWR/RDY LED alternates rapidly
between red and yellowwhile it completes its power-on self-tests and
acquires network parameters. When the tests complete successfully and
the IP address is assigned from either nonvolatilememory orthe network,
the PWR/RDYLED rem ains steady yellow,indicating that the unit is
readyt o operate.
The PWR/RDY LED also alternates rapidly between red and yellow
while the deviceis in network configuration mode. At other tim es, the
PWR/RDY LED blinks slowlyin a recognizab le pattern to alert you of
internalerrors. Use this appendix to interpret and record the pattern that
the PWR/RDYLED flashes, and then contact National Instruments.
Note By recording the PWR/RDY LED status messages before calling National
Instruments,you can save yourself time, and the Product Support Department can
answeryour questions more accurately and efficiently. Do not switch off power to
your GPIB-ENET/100 before recording the flashing PWR/RDY LED pattern.
PWR/RDYLED signalingcan rep ortup to81 different errors. The errors
are numbered from 11 to 99 and are reported through sequences of
PWR/RDY LEDflashes.
Note Thereis no zero in any error message. This means that error message numbers 0–10,
20, 30, 40, 50, 60, 70, 80, and 90 are not possible.