A virtual channel is a collection of settings such as a name, a physical channel, input terminal connections, the type of measurement or generation, and can include scaling information.
In NI-DAQmx, virtual channels are integral to every measurement. You can create virtual channels with the DAQmx Create Channel VI or with the DAQ Assistant. You can also use the DAQ Assistant, accessible from Measurement & Automation Explorer or NI application software, to configure channels and measurement tasks. To name the virtual channel, use the following guidelines:
- Use any alphanumeric characters.
- Do not use non-alphanumeric characters with the following exception:
- You can use underscores within the channel name, but you cannot use leading underscores, such as _Dev1.
- You must use no more than 256 characters.