Hello:
I am developing a C#/.NET that uses DAQmx 9.4 to communicate with a NI 6015 DAQ Pad.
When I try to write to several digital channel lines at a time, an error message is returned:
var digitalWriteTask = new Task();
digitalWriteTask.DOChannels.CreateChannel("Dev1/Port0/line0", string.Empty, ChannelLineGrouping.OneChannelForAllLines);
digitalWriteTask.DOChannels.CreateChannel("Dev1/Port0/line1", string.Empty, ChannelLineGrouping.OneChannelForAllLines);
digitalWriteTask.DOChannels.CreateChannel("Dev1/Port0/line2", string.Empty, ChannelLineGrouping.OneChannelForAllLines);
var dataArray = new bool[3];
dataArray[0] = true;
dataArray[1] = false;
dataArray[2] = false;
var writer = new DigitalSingleChannelWriter(digitalWriteTask.Stream);
writer.WriteSingleSampleMultiLine(true, dataArray);
// The following error is returned when the writer.WriteSingleSampleMultiLine method executes:
//Write cannot be performed, because the number of channels in the data does not match the number of channels in the task.
//When writing, supply data for all channels in the task. Alternatively, modify the task to contain the same number of channels as the data written.
//Number of Channels in Task: 3
//Number of Channels in Data: 1
//Task Name: _unnamedTask<0>
//Status Code: -200524
I was also wondering if it is possible to write to a digital line individually using a logical line name (instead of having to write to all lines at the same time using an array)? If so, can you please provide a code example?
Thanks for your assistance.
Chris
