ICP DAS USA ZT-2017 User Manual page 124

A.5 32 (0x20) Reading the Firmware Version Information
Description
This sub-function code is used to read the firmware version
information for a module.
Request
Byte Description
00 Address
01 Function Code
Sub-function
02
Code
Response
Byte Description
00 Address
01 Function Code
Sub-function
02
Code
03 Major Version
04 Minor Version
05 Reserved
06 Build Version
Error Response
Byte Description
00 Address
01 Function Code
02 Exception Code
ICP DAS, ZT-2017 and ZT-2017C AI Series User Manual, Version 1.0.1
Copyright © 2012 by ICP DAS Co., Ltd. All Rights Reserved.
Length Value
1 1 to 247
1 0x46
1 0x20
Length Value
1 1 to 247
1 0x46
1 0x20
1 0x00 to 0xFF
1 0x00 to 0xFF
1 0x00
1 0x00 to 0xFF
Length Value
1 1 to 247
1 0xC6
Refer to the Modbus standard for more
1
details
Page 124