Error -200077 When Performing Retriggerable Input/Output

Updated Jul 30, 2018

Reported In

Hardware

  • Multifunction I/O Device

Driver

  • NI-DAQmx

Issue Details

When I set my trigger to be retriggerable and I run my VI I get the following error:

Error -200077 occurred at Property Node DAQmx Trigger (arg 1) in DAQmx Start Trigger (Analog Edge).vi:2->Your VI Name.vi

Possible reason(s): 
Measurements: Requested value is not a supported value for this property.


Why is this happening?

Solution

The most likely cause of this problem is that you are trying to set the start trigger for a task, such as an analog input start trigger, to be retriggerable directly through the DAQmx Trigger property node, but the device does not support this feature. For example, on M Series DAQ cards this retriggerable feature is not supported for analog input tasks and should only apply to counter output tasks. In this case, an indirect method can be used to achieve a retriggerable behavior. Information about how to set up an analog start trigger to be retriggerable see the Retriggerable AI Using Counter and an Analog Trigger.

By contrast, X Series DAQ cards allow for the start trigger to be retriggerable for other task types besides counter output tasks. For example, the X Series DAQ card may offer retriggerable AI, AO, DIO, or counter output task types. Check the device documentation to make sure which task types support retriggering 

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