Applent Instruments AT381x, User Manual, Page: 105 / 134

105 Modbus （ RTU ） Command
read register number of
registers
CRC
Response:
1 2 3 4 5 6 7
01 03 02 00 01 79 84
byte data CRC
Data values ：
Data Function Description
0000 Manual range
0001 Auto range
0002 Nominal Select range based on
nominal value
12.3.4 Measurement Speed Register [3003H]

Write
1 2 3 4 5 6 7 8 9 10 11
01 10 30 03 00 01 02 00 01 57 A0
write register number of
registers
byte data CRC
Response:
1 2 3 4 5 6 7 8
01 10 30 03 00 01 FE C9
register number of
registers
CRC

Read
1 2 3 4 5 6 7 8
01 03 30 03 00 01 7B 0A
read register number of
registers
CRC
Response:
1 2 3 4 5 6 7
01 03 02 00 01 79 84
byte data CRC
Data values ：
Data Function Description
0000 Slow speed
0001 Invalid This value is reserved
0002 Medium speed
0003 Fast speed
12.3.5 Averaging Factor Register [3004H]

Write
1 2 3 4 5 6 7 8 9 10 11