DAQ Device Property Dialog Box

Requires: Simulation Interface Toolkit

Right-click the IP address or host name in the Device Tree of the Configure HW I/O Mappings dialog box and select Add Device»NI-DAQ to display this dialog box.

You also can launch this dialog box by right-clicking an NI-DAQ device in the Device Tree and selecting Device Properties.

Use this dialog box to configure properties of a NI-DAQ device.

This dialog box includes the following components:

• Device Name—Specifies the name for the DAQ device. This name must match the name defined for the device in MAX.
• Analog Input Channels—Specifies the number of analog input channels available on the device.
• Analog Input Mode—Specifies the analog input mode to apply to the Analog Input Channels you select.
  • RSE—Specifies that the analog input channels are reference single-ended (RSE). A referenced single-ended (RSE) measurement system measures voltage with respect to the ground, which is directly connected to the measurement system ground. Refer to the Measurement Fundamentals help file that is installed with NI-DAQ for more information about RSE signals.
  • NRSE—Specifies that the analog input channels are non-referenced single-ended (NRSE). In a NRSE measurements system, all measurements are still made with respect to a single-node analog input, AISENSE, but the potential at this node can vary with respect to the measurement system ground. Refer to the Measurement Fundamentals help file that is installed with NI-DAQ for more information about NRSE signals.
  • Differential—Specifies that the analog input channels are differential. A differential measurement system has neither of its inputs tied to a fixed reference, such as earth or building ground. A differential measurement system is similar to a floating signal source in that the measurement is made with respect to a floating ground that is different from the measurement system ground. Hand-held, battery-powered instruments and DAQ devices with instrumentation amplifiers are examples of differential measurement systems. This mode measures potential between two inputs and therefore reduces channel count by 2. Refer to the Measurement Fundamentals help file that is installed with NI-DAQ for more information about differential signals.
  • Pseudodifferential—Specifies that the analog input channels are pseudodifferential. A pseudodifferential measurement system combines some characteristics of a differential input channel and a referenced single-ended (RSE) input channel. Like a differential input channel, a pseudodifferential measurement system exposes both the positive and negative sides of the channel. You connect the positive and negative inputs to the respective outputs of the unit under test. The negative input is tied to system ground through a relatively small impedance. The impedance between the negative input and ground may include both resistive and capacitive components. The positive and negative sides of the input channel are separated by a larger impedance. Refer to the Measurement Fundamentals help file that is installed with NI-DAQ for more information about pseudodifferential signals.
• Analog Output Channels—Specifies the number of analog output channels available on the device.
• Digital Channels—Specifies the digital channels available on the device. For digital channels, each channel can be either input or output.