I-7088 and M-7088 User Manual, Rev: A1.2 7MH-026-A12
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3.3.5. Sub-function 32 (0x20) Read firmware version
This sub-function code is used to read the firmware version
information of a module.
Request
00
Address
1 Byte
1 to 247
01 Function
code 1
Byte
0x46
02
Sub-function code
1 Byte
0x20
Response
00
Address
1 Byte
1 to 247
01 Function
code 1
Byte
0x46
02
Sub-function code
1 Byte
0x20
03
Major version
1 Byte
0x00 ~ 0xFF
04
Minor version
1 Byte
0x00 ~ 0xFF
05
Build version
1 Byte
0x00 ~ 0xFF
Error Response
00
Address
1 Byte
1 to 247
01 Function
code 1
Byte
0xC6
02
Exception code
1 Byte
03: An incorrect number of
bytes were received