IsRunning

Indicate if session operation is in progress

Description

The read-only IsRunning property indicates the session operation is started and in progress, whether or not the hardware is acquiring or generating data at the time.

Tip

• IsRunning indicates the session has started, but the hardware might not be acquiring or generating data. It is still true while the hardware is waiting for a trigger, and while transferring data in the process of stopping.

• IsLogging indicates the hardware is actively acquiring or generating data.

• IsDone indicates the session object has completed its operation, including all necessary transfer of data.

Values

true

Value is logical 1 (true) while the session operation is in progress.

false

Value is logical 0 (false) while the session operation is not in progress, that is, before it starts or after it stops.

Examples

Create an acquisition session, add a DataAvailable event listener and start the acquisition.

s = daq.createSession('ni');
addAnalogInputChannel(s,'cDAQ1Mod1','ai0','voltage');
lh = s.addlistener('DataAvailable', @plotData);

function plotData(src,event)
         plot(event.TimeStamps, event.Data)
end
startBackground(s);

See if the session is in progress.

s.IsRunning

ans =

    1

Wait until operation completes and see if session is in progress.

wait(s)
s.IsRunning

ans =

     0