I/o module problems, Table f-2. i/o module problems – National Instruments FP-3000 User Manual
Page 121
Appendix F
Troubleshooting
© National Instruments Corporation
F-3
FieldPoint FP-3000 User Manual
I/O Module Problems
FP-3000 offers diagnostic capabilities to help find problems with the
I/O modules you have plugged in.
All the blocks and configuration
information are lost on a power
cycle.
Make sure the Reset switch at the back of the FP-3000 is set
correctly. Refer to Appendix A,
, for
details.
FP-3000 does not execute the
communication schedule when it
becomes LAS.
You must download a schedule to the FP-3000. If you are using
the NI-FBUS Configurator, make sure FP-3000 is in the list of
devices to receive a schedule as described in the NI-FBUS
Configurator User Manual.
Table F-2. I/O Module Problems
Problem
Solutions
The green READY LED
does not light when the
module is plugged in.
Make sure the module is firmly seated. Also, make sure the terminal
base is firmly attached to the terminal base on its left. Look for bent
pins on the bottom of the module or between terminal bases
(remember to power down the bank before removing terminal
bases).
The red LED is lit on an I/O
channel.
•
TC module: The thermocouple is not connected or is broken.
•
AI module: The input wires are not connected or are broken.
•
AO module: The module cannot source as much current as the
FP-3000 is requesting. This might be because the output wires
are not connected or are broken, you have not powered the
outputs, or there could be some other electrical problem.
The power LED does not
light when the module is
plugged in
•
Make sure the module is firmly seated.
•
Make sure you are not exceeding the amount of current your
power supply can provide. Refer to
in Chapter 2,
Installation and Configuration
, for information on
calculating power requirements.
•
Try removing and/or swapping modules and terminal bases to
see if the problem can be narrowed down to a particular terminal
base or module. If so, that unit might need to be replaced.
Contact National Instruments for help.
Table F-1. Fieldbus Communication Problems (Continued)
Problem
Solutions