Write One Word - DigiTrace TCONTROL-CONT-03 Bedienungsanleitung

2.6.2 Write one word

For the Write Word function, the data blocks for instruction and response are
identical.
Instruction
Slave
address
1 byte
Response
Slave
address
1 byte
Example
Write 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
Response (as instruction):
01
Instruction: Write the second part of the value (next word address)
01
Response (as instruction):
01
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Function Word address
0x06
1 byte 2 byte
Function Word address
0x06
1 byte 2 byte
06 0057 8000
06 0057 8000
06 0058 4389
06 0058 4389
2 Protocol description
Word value
2 bytes
Word value
2 byte
59DA
59DA
F88F
F88F
Checksum
CRC16
2 byte
Checksum
CRC16
2 byte
13