2. MODBUS Protocol Description
2.6.10 Read Device Identification (Function Code 0x2B)
Function Code
MEI Type
Read Device ID Code
Object ID
Function Code
MEI Type
Read Device ID Code
Conformity Level
More Follows
Next Object ID
Number of Objects
List of Object ID
Object Length
Object Value
Function Code
Exception Code
Request
1 Byte
1 Byte
1 Byte
1 Byte
Response
1 Byte
1 Byte
1 Byte
1 Byte
0x01 or 0x02 or 0x03 or 0x81 or 0x82 or 0x83
1 Byte
1 Byte
1 Byte
1 Byte
1 Byte
Object Length
Error
1 Byte
1 Byte
18
0x2B
0x0E
01/02/03/04
0x00~0xFF
0x2B
0x0E
01/02/03/04
00/FF
Object ID
...
...
...
Depending on the Object ID
0xAB
01 or 02 or 03 or 04