National Instruments ENET-232 Series, Manual

Page: 129 / 237

ENET PWR/RDY LED Signaling
This topic describes how to interpret the PWR/RDY LED error codes.
The PWR/RDY LED has several purposes on the serial ENETs. When
you first power on the unit, the PWR/RDY LED alternates rapidly
between red and yellow while it completes its power-on self-tests and
acquires network parameters. When the tests complete successfully and
the IP address is assigned from either nonvolatile memory or the
network, the
PWR/RDY LED remains steady yellow, indicating that the
unit is ready to operate.
The PWR/RDY LED also alternates rapidly between red and yellow while
the device is in network configuration mode. At other times, the
PWR/RDY LED blinks slowly in a recognizable pattern to alert you of
internal errors. Use the following steps to interpret and record the pattern
that the
PWR/RDY LED flashes, and then contact National Instruments.
Note By recording the PWR/RDY LED error messages before
calling National Instruments, you can save yourself time, and
customer support can answer your questions more accurately and
efficiently. Do not switch off power to your serial ENET before
recording the flashing
PWR/RDY LED pattern.
PWR/RDY LED signaling can report up to 81 different errors. The errors
are numbered from 11 to 99 and are reported through sequences of
PWR/RDY LED flashes.
Note There is 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.