Omron SYSDRIVE 3G3MV User Manual page 208

Communications
D Response
Normal
Byte No.
1 Slave address
2 Function code (03 Hex)
3 No. of bytes of attached data
Data of start register Data of start register
4
5
6 Data of next register Data of next register
7
8 Data of next register Data of next register
9
:
CRC-16 check CRC-16 check
n--1
n
Error
Byte No.
1 Slave address
2 Function code (83 Hex)
3 Error code
4 CRC-16 check CRC-16 check
5
Note When an error occurs, the MSB of the function code will be set to 1.
H Example of Data Read
·In the following example, four-register data (status signal data) is read from register
0020 Hex of the Inverter with a Slave address of 02.
7-14
Data
:
Data
Chapter 7
MS B
LSB
MSB
LSB
MSB
LSB
: