Frame Format: Write Single Coil; Frame Format: Write Single Holding Register - Uponor Smatrix Base PRO X-148 Installation Manual

2.5 Frame format: Write Single Coil

Request
Slave address Function code
(0x01 – 0xF7) (0x05)
1 byte 1 byte
Response
Slave address Function code
(0x01 – 0xF7) (0x05)
1 byte 1 byte
Response in case of error
Slave address Error code
(0x01 – 0xF7) (0x85)
1 byte 1 byte
Example:
Request example:Change state from ECO to Comfort
Slave address Function code
(0x01) (0x05)
1 byte 1 byte
Response example:Change state from ECO to Comfort
Slave address Function code
(0x01) (0x05)
1 byte 1 byte

2.6 Frame format: Write Single Holding Register

Request
Slave address Function code
(0x01 – 0xF7) (0x06)
1 byte 1 byte
Response
Slave address Function code
(0x01 – 0xF7) (0x06)
1 byte 1 byte
Response in case of error
Slave address Error code
(0x01 – 0xF7) (0x86)
1 byte 1 byte
Starting register address
(0x0000 – 0xFFFF)
2 bytes
Output address to write
(0x0000 – 0xFFFF)
2 bytes
Exception code
(01, 02, 03, 04, or 06)
1 byte
Starting register Starting register
address HI address LO
(0x00) Register 2 (0x01)
1 byte 1 byte
Output address to Output address to
write HI write LO
(0x00) Register 2 (0x01)
1 byte 1 byte
Starting register address
(0x0000 – 0xFFFF)
2 bytes
Output address to write
(0x0000 – 0xFFFF)
2 bytes
Exception code
(01, 02, 03, 04, or 06)
1 byte
Uponor Smatrix Base PRO Controller X-148 Modbus RTU
Output value to write
(0xFF00 = 1, 0x0000 = 0)
2 bytes
Output value written
(0xFF00 = 1, 0x0000 = 0)
2 bytes
Output value to write Output value to write
HI LO
(0x00) (0x00)
1 byte 1 byte
Output value written Output value written
HI LO
(0x00) (0x00)
1 byte 1 byte
Register value
(0x0000 – 0xFFFF)
2 bytes
Output value written
(0x0000 – 0xFFFF)
2 bytes
CRC
2 bytes
CRC
2 bytes
CRC
2 bytes
CRC
2 bytes
CRC
2 bytes
CRC
2 bytes
CRC
2 bytes
CRC
2 bytes
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