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DAQmx_ReadDigitalScalar


Module: ThirdParty

Reads a sample from a specified digital task.

Name Type Description
inDeviceID String* Device alias, product name or a serial number
inTaskID DAQmxTaskID ID of task to read sample from
inTimeout Integer* Time (in milliseconds) to wait for the function to read sample
outValue Integer Value read from the task
outTaskID DAQmxTaskID? ID of a created task

Remarks

Device driver software

This filter is intended to cooperate with digital I/O cards using its vendor driver software. To be able to connect to a card it is required to install NI-DAQmx driver software. Currently Adaptive Vision Studio requires NI-DAQmx version 19.5.

NI-DAQmx driver software can be downloaded from the following website: http://www.ni.com/dataacquisition/nidaqmx.htm.

Device identification

When there is only one device connected to computer, inDeviceID field can be set to Auto. In this situation first available device will be found and connected.

inDeviceID can be used to pick one of multiple devices connected to computer. Set this field to Device alias (for example "Dev1"), product name or serial number. This parameters should be available in Measurement & Automation Explorer.

User manual

For more informations about using this filters please follow the link: Working with National Instruments devices.

Multithreaded environment

This function is not guaranteed to be thread-safe. When used in multithreaded environment, it has to be manually synchronized.

Complexity Level

This filter is available on Basic Complexity Level.

Disabled in Lite Edition

This filter is disabled in Lite Edition. It is available only in full, Adaptive Vision Studio Professional version.

See Also