Autonics KPN Series, Руководство пользователя по связи, Страница: 13 / 26

1 Modbus RTU protocol
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1.5 Preset Single Registers(Func06–06H)
Read the Binary data of single Holding Registers (4X reference) in Slave device.
(1) Query(Master)
Slave Address Function
Register Address Preset Data Error Check(CRC16)
High Low High Low Low High
1Byte 1Byte 1Byte 1Byte 1Byte 1Byte 1Byte 1Byte
(2) Response(Slave)
Slave Address Function
Register Address Preset Data Error Check(CRC16)
High Low High Low Low High
1Byte 1Byte 1Byte 1Byte 1Byte 1Byte 1Byte 1Byte
If write
“10(
A H
)” to
Holding Register
400001(0000
H
) on
Slave
(
Address
17) from
Master
.

Query
(Master)
Slave Address Function
Starting Address Preset Data Error Check(CRC16)
High Low High Low Low High
11 H 06 H 00 H 00 H 00 H 0A H ## H ## H

Response
(Slave)
Slave Address Function
Starting Address Preset Data Error Check(CRC16)
High Low High Low Low High
11 H 06 H 00 H 00 H 00 H 0A H ## H ## H
CRC16
CRC16