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Protocol description
2.6.2
Write one word
F or the Write Word function, the data blocks for instruction and response are identical.
Instruction
Slave
address
1 byte
Response
Slave
address
1 byte
Example
W rite the limit value AL of limit comparator 1 = 275.0
(Value = 0x80004389 in the Modbus float format)
Word address = 0x0057
Instruction: Write the first part of the value
01
06
Response (as instruction):
01
06
Instruction: Write the second part of the value (next word address)
01
06
Response (as instruction):
01
06
Function
0x06
1 byte
Function
0x06
1 byte
0057
8000
59DA
0057
8000
59DA
0058
4389
F88F
0058
4389
F88F
Word address
Word value
2 byte
2 bytes
Word address
Word value
2 byte
2 byte
Checksum
CRC16
2 byte
Checksum
CRC16
2 byte
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