NI 9217 (Scan Interface)
CompactRIO 4-Channel, 24-Bit, 100Ω RTD Analog Input Module
Module I/O Variables
To use I/O from this module in a VI, drag and drop I/O variables from the Project Explorer window to the block diagram of the VI. The I/O variables for the channels return calibrated floating-point data in units as specified on the C Series Module Properties dialog box.
Module Channels
The NI 9217 has the following channels.
| Channel | Description |
|---|---|
| AIx | Analog input channel x, where x is the number of the channel. For the NI 9217, x is 0 to 3. |
C Series Module Properties Dialog Box
Use this dialog box to configure the NI 9217. Right-click the NI 9217 in the Project Explorer window and select Properties to display this dialog box. You can configure the following options.
- Name—Specifies the name of the C Series module, which appears in the Project Explorer window. LabVIEW assigns a default name to the module based on the slot number. You can use this field to give the module a descriptive name.
- Module Type—Specifies the type of C Series module. You cannot change this value.
- Location—Specifies a slot in the chassis for the C Series module.
- Conversion Time—Specifies the time it takes to acquire one point of data from all channels. You can select 200 ms or 2.5 ms.
- Measurement Units—Specifies the units you want data to be returned in for the channel. You can select Raw Ohms, Degrees Kelvin, Degrees Celsius, Degrees Fahrenheit, or Degrees Rankine. If the RTD does not have a temperature coefficient of resistance (TCR) of 3851, you must select Raw Ohms and use the Convert RTD Reading VI to convert values to temperature units.
Hardware Documentation
Refer to the NI 9217 Operating Instructions and Specifications to learn about module specifications and how to use the module. Refer to the CompactRIO Related Documentation (Scan Interface) topic for further information about CompactRIO documentation.