ROOTECH ACCURA 7500, Руководство пользователя, Страница: 22 / 76

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Function 06: Write a Single Register to Meter
To write data to a single register, a Master should send the slave device a Write Single Register to
Meter request packet via Function 06 code .
Request
Slave Function Starting Address Data Word Error Check
06
1 byte 1 byte 2 bytes 2 bytes 2 bytes
Example]
Writes data[78hex] to the PT ratio [address 40053] of the relay 1.
Slave address = 1, starting address = 34, data word = 78, crc high =C8, crc low = 26
Slave Function Starting Address Data Word Error Check
01 06 00 34 00 78 C8 26
Response
In addition to the response to Function 06 command, the relay re-sends the request packet.
Example]
The response to the above request packet is as follows.
Slave Function Starting Address Data Word Error Check
01 06 00 34 00 78 C8 26
Function 16: Write Multiple Registers to Meter
Function 16[decimal] indicates the Request/Response format through which data is written to
multiple registers of the relay. [Note: the decimal number 16 is converted to the hexadecimal
number 10].
Request
Slave Function Starting Address Word Count Byte Count
10
1 byte 1 byte 2 bytes 2 bytes 1 byte
Data Word 1 --- --- --- Data Word N Error Check
--- --- ---
2 bytes --- --- --- 2 bytes 2 bytes