C# read status of digital output line

[Tonnie]

Hello

Is it possible to read the status of a digital output line with a PCI 6509 board.

When i set a output line and read it back the output switches off because it set to input.

with kind regards

Tonnie

[Curt_C]

Hi,

Try this. Read back the values on the same task

using (Task digitalWriteTask = new Task())
                {
                    //  Create an Digital Output channel and name it.
                    digitalWriteTask.DOChannels.CreateChannel("Dev1/port0", "port0",
                        ChannelLineGrouping.OneChannelForAllLines);

                    //  Write digital port data. WriteDigitalSingChanSingSampPort writes a single sample
                    //  of digital data on demand, so no timeout is necessary.
                    DigitalSingleChannelWriter writer = new DigitalSingleChannelWriter(digitalWriteTask.Stream);
                    writer.WriteSingleSamplePort(true, (UInt16)this.numericEdit1.Value  );

                    //  Create the reader
                    DigitalSingleChannelReader reader = new DigitalSingleChannelReader(digitalWriteTask.Stream);
                    //   Read back the value
                    this.textBox1.Text =  reader.ReadSingleSamplePortByte().ToString();


                }

Hope this helps

Curt