1 Modbus RTU protocol
14
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1.6
Preset Single Registers(Func 06–06H)
Writes the Binary data of single Holding Registers (4X reference) in Slave device.
(1)
Query (Master)
Slave Address Function
Register Address
Preset Data(Data)
Error Check(CRC16)
Hi(Upper)
Lo(Lower)
Hi(Upper)
Lo(Lower)
Lo(Lower)
Hi(Upper)
1Byte
1Byte
1Byte
1Byte
1Byte
1Byte
1Byte
1Byte
(2)
Response (Slave)
Slave Address Function
Register Address
Preset Data(Data)
Error Check(CRC16)
Hi(Upper)
Lo(Lower)
Hi(Upper)
Lo(Lower)
Lo(Lower)
Hi(Upper)
1Byte
1Byte
1Byte
1Byte
1Byte
1Byte
1Byte
1Byte
If writing “10(A H)” to Holding Register 400001(0000 H) on Slave(Address 17) from Master.
Query (Master)
Slave Address Function
Starting Address
Preset Data(Data)
Error Check(CRC16)
Hi(Upper)
Lo(Lower)
Hi(Upper)
Lo(Lower)
Lo(Lower)
Hi(Upper)
11 H
06 H
00 H
00 H
00 H
0A H
## H
## H
Response (Slave)
Slave Address Function
Starting Address
Preset Data(Data)
Error Check(CRC16)
Hi(Upper)
Lo(Lower)
Hi(Upper)
Lo(Lower)
Lo(Lower)
Hi(Upper)
11 H
06 H
00 H
00 H
00 H
0A H
## H
## H
CRC16
CRC16
Summary of Contents for BFC Series
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