National Instruments Deterministic Ethernet Expansion Chassis NI 9144 Manual de usuario descargar pdf (Pagina 45)

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

1 2 ... 40 41 42 43 44 45 46 47 48 49 50 ... 64 65

Sin comentarios

National Instruments Deterministic Ethernet Expansion Chassis NI 9144 Manual de usuario Pagina 45