DAQmx Global Virtual Channels Say "Unknown Bad Quality" in DSM

Updated May 3, 2018

Reported In

Hardware

  • PXI-1052
  • PXI-8186
  • PXI-6602

Driver

  • NI-DAQmx

Other

NI Distributed System Manager

Issue Details

I am monitoring my DAQmx global virtual channels in NI Distributed System Manager. They are displaying as gray with the message "0 (Unknown Bad Quality)" or"(Unknown Bad Quality)". The type of task is counter and I am using a PXI timing card.

Solution

Distributed System Manager will show “0 (Unknown Bad Quality)” if there is no incoming signal. It will show “(Unknown Bad Quality)” if the resource has been reserved by a different application (for example, if NI MAX or LabVIEW is running the task already) or if there is something else wrong with the channel (for example, if a global channel has been configured for an empty slot).

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