Denkovi smartDEN IP-16R Series, Руководство пользователя

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smartDEN IP-16R-XX User Manual
13 Apr 2021
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Error response example:
Table 10.23. Read Holding Registers error response
Field Length Data
Transaction Identifier
2 Bytes 0x0004
Protocol Identifier 2 Bytes 0x0000
Length 2 Bytes 0x0003
Unit Identifier 1 Byte 0x00
Function Code 1 Byte 0x83
Exception Codes 1 Byte 0x01 or 0x02
10.2.1.4. Write Single Register
This command is used to write a single register.
Request
The Write Single Register request specifies the register address to be written, and
the register value.
Request example: Generate pulse on Relay 10, pulse width 3 seconds:
Table 10.24. Write Single Register request
Field Length Data
Transaction Identifier 2 Bytes 0x0005
Protocol Identifier 2 Bytes 0x0000
Length 2 Bytes 0x0006
Unit Identifier 1 Byte 0x00
Function Code
1 Byte 0x06
Register Address 2 Bytes 0x0009
Register Value 2 Bytes 0x001E
Note : Pulse duration is given in milliseconds x 100.
Response
The normal response returns the function code, register address, and register
value (echo of the query).
Response example: Generate pulse on Relay 10, pulse width 3 seconds:
Table 10.25. Write Single Register response
Field Length Data
Transaction Identifier
2 Bytes 0x0005
Protocol Identifier 2 Bytes 0x0000
Length 2 Bytes 0x0006
Unit Identifier 1 Byte 0x00
Function Code 1 Byte 0x06
Register Address 2 Bytes 0x0009
Register Value 2 Bytes 0x001E