National Instruments Deterministic Ethernet Expansion Chassis NI 9144 - Manual (Page 45)

© National Instruments Corporation 45 NI 9144 User Guide and Specifications
NI 9219 Example Command Words Sequence
Note The order in which you send the commands is important.
Configuration 1: All Channels (ai0:ai3) for Voltage AI, ±15 Volt Range,
High Speed Mode (100 Hz Max Sample Rate):
(0x0F) Quarter-Bridge 350
Ω
(0x10) 120
Ω
(0x11) Half-Bridge 1 V/V
(0x13) Full-Bridge
CJC
62.5 mV/V
(0x14) 7.8 mV/V
(0x17) CJC range
Table 41. NI 9219 Configuration 1: Command Bytes
Command Byte Value Description
0x01 ADC Mode Configuration Byte – Channel 0
0x01 Data Byte
0x46 CRC value
0x1F Mode/Range Configuration – Channel 0
0x01 Data Byte
0xC6 CRC value
0x04 Calibration Offset MSB – Channel 0
0x7F Data Byte
0x54 CRC value
0x05 Calibration Offset Byte 2 – Channel 0
0xFF Data Byte
0xB6 CRC value
0x06 Calibration Offset LSB – Channel 0
0x85 Data Byte
Table 40. NI 9219 Mode and Range Type (Continued)
Configuration
Value Mode Range