Uponor Smatrix Base PRO X-147, Installation Manual

Page: 11 / 30

Uponor Smatrix Base PRO Controller X-147 Modbus RTU interface l Installation manual l 11
Request example: Read humidity value (85% RH) for channel 12
Slave address
(0x01)
Function code
(0x04)
Starting register
address HI
(0x00)
Starting register
address LO
Start at 25 (0x18)
Quantity of input
registers to read HI
(0x00)
Quantity of input
registers to read LO
1 channel (0x01)
CRC
1 byte 1 byte 1 byte 1 byte 1 byte 1 byte 2 bytes
Response example: Read humidity value (85% RH) for channel 12
Slave address
(0x01)
Function code
(0x04)
Byte count
(0x02)
Input register HI
(0x00)
Input register LO
(0x55)
CRC
1 byte 1 byte 1 byte 1 bytes 1 bytes 2 bytes
Request example: Read thermostat loss alarm
Slave address
(0x01)
Function code
(0x04)
Starting register
address HI
(0x00)
Starting register
address LO
Start at 38 (0x25)
Quantity of input
registers to read HI
(0x00)
Quantity of input
registers to read LO
(0x01)
CRC
1 byte 1 byte 1 byte 1 byte 1 byte 1 byte 2 bytes
Response example: Read thermostat loss alarm
Slave address
(0x01)
Function code
(0x04)
Byte count
(0x02)
Input register HI
(0x08)
Input register LO
(0x01)
CRC
1 byte 1 byte 1 byte 1 bytes 1 bytes 2 bytes
Request example: Offset heat pump heat curve with -10 degrees
Slave address
(0x01)
Function code
(0x04)
Starting register
address HI
(0x00)
Starting register
address LO
Start at 39 (0x26)
Quantity of input
registers to read HI
(0x00)
Quantity of input
registers to read LO
(0x01)
CRC
1 byte 1 byte 1 byte 1 byte 1 byte 1 byte 2 bytes
Response example: Offset heat pump heat curve with -10 degrees
Slave address
(0x01)
Function code
(0x04)
Byte count
(0x02)
Input register HI
(0x00)
Input register LO
(0xF6)
CRC
1 byte 1 byte 1 byte 1 bytes 1 bytes 2 bytes