2. MODBUS Protocol Description
Example 1:
Field
Function Code
MEI Type
Read Dev ID Code
Object ID
Example 2:
Field
Function Code
MEI Type
Read Dev ID Code
Object ID
Basic Device Identification
Request
Hex
2B
0E
01
00
Request
Hex
2B
0E
01
00
Field
Function Code
MEI Type
Read Device ID Code
Conformity Level
More Follows
Next Object ID
Number of Objects
Object ID
Object Length
Object Value
Object ID
Object Length
Object Value
Object ID
Object Length
Object Value
First Transaction
Field
Function Code
MEI Type
Read Device ID Code
Conformity Level
More Follows
Next Object ID
Number of Objects
Object ID
Object Length
Object Value
Object ID
Object Length
Object Value
20
Response
Hex
2B
0E
01
01
00
00
03
00
16
"Company Identification"
01
0D
"Product Code XX"
02
05
"V2.11"
Response
Hex
2B
0E
01
01
00
00
03
00
16
"Company Identification"
01
0D
"Product Code XX"