National Instruments FP-1001 - Manual (Page 32)

Chapter 3 Feature Set Description
FieldPoint FP-1000/FP-1001 User Manual 3-8 © National Instruments Corporation
The yellow NETWORK LED is lit during transmissions from the host
computer on the network. This LED indicates that the network module
is receiving from the network, and that the communication wires to it
are not broken. The NETWORK LED gets brighter as activity on the
network increases.
The yellow ACCESS LED flashes when the network module or any of
the I/O modules in its bank respond to the host computer. This LED
indicates that a module in the bank was addressed by a correctly
formatted command, and that the module is responding to that
command (either with a success or error response).
The red STATUS LED is lit when the network module detects a failure.
If STATUS is not lit, the network module has not detected a failure. The
network module indicates specific error conditions by flashing
STATUS a specific number of times. Table 3-2 describes the STATUS
LED flashing sequences and the corresponding error condition.
Table 3-2. STATUS LED Flashes and Corresponding Error Conditions
Number of
Flashes Error Condition
0 (stays lit) The network module initialization failed.
1 The network module address switch is incorrectly
configured. Refer to the Setting the Network Address
section in Chapter 2, Installation and Configuration.
2 The network module has detected an error in the
terminal bases in the bank. Check whether there are
more than nine terminal bases (maximum allowed) in
the bank or whether removing one or more terminal
bases eliminates the error condition.
3 The network module has detected an irrecoverable
internal error.