6
Example: The contents of the holding register 1001H are the read out from slave address 1.
Query message: 01 03 10 01 00 01 D1 0A
Response message: 01 03 02 00 FD 79 C5
Explain：00FD=253,is processed as 25.3
10.5 Preset single register [06H]
The query message specifies data to be written into the designated holding register. Only R/W holding
registers can be specified. The controller EEPROM had a life span of data written to the EEPROM less than
1000,000 times
Slave address Function code Register
address
Write data CRC16
Example: Data is written into the holding register 0004H of slave address 1.
Query message: 01 06 00 04 FF 38 88 29
Response message: 01 06 00 04 FF 38 88 29
When input set value(SV) is -20.0,-20.0 is processed as -200,-200=0000H-00C8H=FF38H
10.6 No response
The slave ignores the query message and does not respond when:
• The slave address in the query message does not coincide with any slave address settings.
• The CRC code of the master does not coincide with that of the slave.
• Transmission error such as overrun, framing, parity and etc., is found in the query message.
• The Communication time interval less than 300ms.
10.7 Register address list:
Symbol Decimal point Real Register Holding Register
Measured value(PV) YES 1001H~1004H 44098~44101
The first public parameters (Refer to 5. Parameters)
Lock NO 0000H 40001
TS NO 0001H 40002
… and so on
Baud NO 0009H 40010
The Parameters of channel 1 (Refer to 5. Parameters)
SP1~ COL1 - 000AH~0012H 40011~40019
The Parameters of channel 2 (Refer to 5. Parameters)
SP2~ COL2 - 0013H~001BH 40020~40028
The Parameters of channel 3 (Refer to 5. Parameters)
SP3~ COL3 - 001CH~0024H 40029~40037
The Parameters of channel 4 (Refer to 5. Parameters)
SP4~ COL4 - 0025H~002DH 40038~40046
Character Symbols ：This manual indicates 9-segment display characters as shown below.
A B C D E F G H I J K L M
N O P Q R S T U Y
