NI 9203 (FPGA Interface)

NI CompactRIO Device Drivers Help

Edition Date: December 2017

Part Number: 373197L-01

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FPGA I/O Node

You can use an FPGA I/O Node, configured for reading, with this device.

Terminals in Software

Use the FPGA I/O Node to access the following terminals for this device.

Terminal	Description
AIx	Analog input channel x, where x is the number of the channel. The NI 9203 has AI channels 0 to 7.

Arbitration

This device supports only the Arbitrate if Multiple Requestors Only option for arbitration. You cannot configure arbitration settings for this device.

I/O Methods

This device does not support any I/O methods.

Module Methods

Use the FPGA I/O Method Node to access the following module method for this device.

Method	Description
Set Input Range	Sets the input range for a channel as either 0–20 mA or ±20 mA. This method overwrites the value you configure in the C Series Module Properties dialog box.

I/O Properties

Use the FPGA I/O Property Node to access the following I/O properties for this device.

Property	Description
LSB Weight (±20 mA range)	Returns the LSB weight in pA/LSB for the channel. Use this value to convert and calibrate NI 9203 data if you set the Calibration Mode to Raw in the C Series Module Properties dialog box, and you set the input range to ±20 mA.
LSB Weight (4–20 mA range)	Returns the LSB weight in pA/LSB for the channel. Use this value to convert and calibrate NI 9203 data if you set the Calibration Mode to Raw in the C Series Module Properties dialog box, and you set the input range to 0–20 mA.

Module Properties

Use the FPGA I/O Property Node to access the following module properties for this device.

Property	Description
Module ID	Returns the module ID, 0x7129.
Offset (±20 mA range)	Returns the calibration offset in pA for the channel. Use this value to convert and calibrate NI 9203 data if you set the Calibration Mode to Raw in the C Series Module Properties dialog box, and you set the input range to ±20 mA.
Offset (4–20 mA range)	Returns the calibration offset in pA for the channel. Use this value to convert and calibrate NI 9203 data if you set the Calibration Mode to Raw in the C Series Module Properties dialog box, and you set the input range to 0–20 mA.
Serial Number	Returns the unique serial number of the module.
Vendor ID	Returns the NI vendor ID, 0x1093.

Single-Cycle Timed Loop

This device does not support the single-cycle Timed Loop.