cDAQ-9181 Cannot Recognize C Series Modules

Updated Nov 9, 2018

Reported In


  • cDAQ-9181
  • cDAQ-9171
  • cDAQ-9191


  • NI-DAQmx


Single Slot CompactDAQ Chassis

Issue Details

My cDAQ-9181 chassis cannot recognize any of my C Series Modules plugged into the slot. I have already installed the required drivers and all my C Series Modules work fine on other CompactDAQ and CompactRIO chassis or controllers.


  • Make sure that the firewall on your host PC is turned off and you are logged in to the chassis.
  • Ensure that you are reserving the network device in NI MAX.  If you are not reserving the network device, you will not have access to the chassis' internal contents.
Because the cDAQ-9181 is a single slot CompactDAQ chassis and there are no extra slots for testing, try removing the C Series Module plugged in.  Check the physical pins on the chassis and inspect the module for physical damage which could cause connection problems resulting in recognition failures.


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