Uponor Smatrix Base PRO X-147, Installation Manual

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12 l Uponor Smatrix Base PRO Controller X-147 Modbus RTU interface l Installation manual
2.5 Frame format: Write Single Coil
Request
Slave address
(0x01 – 0xF7)
Function code
(0x05)
Starting register address
(0x0000 – 0xFFFF)
Output value to write
(0xFF00 = 1, 0x0000 = 0)
CRC
1 byte 1 byte 2 bytes 2 bytes 2 bytes
Response
Slave address
(0x01 – 0xF7)
Function code
(0x05)
Output address to write
(0x0000 – 0xFFFF)
Output value written
(0xFF00 = 1, 0x0000 = 0)
CRC
1 byte 1 byte 2 bytes 2 bytes 2 bytes
Response in case of error
Slave address
(0x01 – 0xF7)
Error code
(0x85)
Exception code
(01, 02, 03, 04, or 06)
CRC
1 byte 1 byte 1 byte 2 bytes
Example:
Request example: Change state from ECO to Comfort
Slave address
(0x01)
Function code
(0x05)
Starting register
address HI
(0x00)
Starting register
address LO
Register 2 (0x01)
Output value to write
HI
(0x00)
Output value to write
LO
(0x00)
CRC
1 byte 1 byte 1 byte 1 byte 1 byte 1 byte 2 bytes
Response example: Change state from ECO to Comfort
Slave address
(0x01)
Function code
(0x05)
Output address to
write HI
(0x00)
Output address to
write LO
Register 2 (0x01)
Output value written
HI
(0x00)
Output value written
LO
(0x00)
CRC
1 byte 1 byte 1 byte 1 byte 1 byte 1 byte 2 bytes