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ACS-20B(W)-MRTU User Manual
Version 1.1
Page
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28
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5.2.2 Sub-FC04 (0x04): Set the Modbus Unit ID (Net ID)
Table 5-7: FC100-Sub-FC04 Request
Byte
order
Description
Size
Value
00
Address
1 Byte
1 ~ 247 (Net ID)
01
FC
1 Byte
0x64
02
Sub-FC
1 Byte
0x04
03
New
Address
1 Byte
1 ~ 247 (Net ID)
04
[reserved]
1 Byte
0x00
Table 5-8: FC100-Sub-FC04 Response
Byte
order
Description
Size
Value
00
Address
1 Byte
1 ~ 247 (Net ID)
01
FC
1 Byte
0x64
02
Sub-FC
1 Byte
0x04
03
Result
1 Byte
0x00 => OK,
Others => Error
04
[reserved]
1 Byte
0x00
Note: This parameter setting is effective after power cycling the module,