Uponor Smatrix Base PRO X-147, Installation Manual

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Uponor Smatrix Base PRO Controller X-147 Modbus RTU interface l Installation manual l 13
2.6 Frame format: Write Single Holding Register
Request
Slave address
(0x01 – 0xF7)
Function code
(0x06)
Starting register address
(0x0000 – 0xFFFF)
Register value
(0x0000 – 0xFFFF)
CRC
1 byte 1 byte 2 bytes 2 bytes 2 bytes
Response
Slave address
(0x01 – 0xF7)
Function code
(0x06)
Output address to write
(0x0000 – 0xFFFF)
Output value written
(0x0000 – 0xFFFF)
CRC
1 byte 1 byte 2 bytes 2 bytes 2 bytes
Response in case of error
Slave address
(0x01 – 0xF7)
Error code
(0x86)
Exception code
(01, 02, 03, 04, or 06)
CRC
1 byte 1 byte 1 byte 2 bytes
Examples:
Request example: Write 23 ˚C (73.4 ˚F = value 734, 0x02DE) setpoint, channel 5
Slave address
(0x01)
Function code
(0x06)
Starting register
address HI
(0x00)
Starting register
address LO
Start at 5 (0x04)
Register value HI
(0x02)
Register value LO
(0xDE)
CRC
1 byte 1 byte 1 byte 1 byte 1 byte 1 byte 2 bytes
Response example: Write 23 ˚C (73.4 ˚F = value 734, 0x02DE) setpoint, channel 5
Slave address
(0x01)
Function code
(0x06)
Output address to
write HI
(0x00)
Output address to
write LO
Start at 5 (0x04)
Output value written
HI
(0x02)
Output value written
LO
(0xDE)
CRC
1 byte 1 byte 1 byte 1 byte 1 byte 1 byte 2 bytes
Request example: Write 25 ˚C (77.0 ˚F = value 770, 0x0302) maximum floor temperature limit, channel 12
Slave address
(0x01)
Function code
(0x06)
Starting register
address HI
(0x00)
Starting register
address LO
Start at 59 (0x3A)
Register value HI
(0x03)
Register value LO
(0x02)
CRC
1 byte 1 byte 1 byte 1 byte 1 byte 1 byte 2 bytes
Response example: Write 25 ˚C (77.0 ˚F = value 770, 0x0302) maximum floor temperature limit, channel 12
Slave address
(0x01)
Function code
(0x06)
Output address to
write HI
(0x00)
Output address to
write LO
Start at 59 (0x3A)
Output value written
HI
(0x03)
Output value written
LO
(0x02)
CRC
1 byte 1 byte 1 byte 1 byte 1 byte 1 byte 2 bytes