Autonics SPR1 Series, Руководство пользователя по связи

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1 Modbus RTU Protocol
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1.6 Preset single register (Func 06–06H)
Read the Binary data of single Holding Register (4X reference) in Slave device.
(1) Query (Master)
Slave address Function Starting 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 Starting 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 40001(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