01-03-08-26-10-17-40-01-00-00-23-CRCLo-CRCHi
01-04-08-26-10-17-40-01-00-00-23-CRCLo-CRCHi
In the response circuit serial number from channel 0: 26-10-17-40-01-00-00-23
Response – in case of error
Byte no Designation Size Value [hex]
00 Module address 1-Byte
01 [1 to F7]
01 Function code 1-Byte
83 / 84
02 Error code 1-Byte
01 - unknown function
02 - unknown data address
03 - unknown data value
04 - unknown error while inquiry converting
03 CRC-Lo 1-Byte
04 CRC-Hi 1-Byte
7.3.3. FUNCTION 0X03 / 0X04 - READOUT OF MEASURING CHANNEL STATUS [4X / 3X-
REFERENCES]
Use function code 0x03 / 0x04 for readout of measuring channel status.
The condition of each measuring channel is presented by 16-bit register:
Register of the measuring channel status
Bit Channel status Byte Lo Bit Channel status Byte Hi (from ver.1.008 firmware)
0
Sensor in processing
0 - No
1 - Yes
0
Short circuit on the 1-Wire bus
0 - No
1 - Yes
1
Sensor detected
0 - No
1 - Yes
1
DS18xx circuit present on 1-WIRE bus (0)
0 - No
1 - Yes
2
Channel unlocked
0 - No
1 - Yes
2
Additional power (3-wire bus)
0 - No
1 - Yes
3
Overflow the lower threshold of measure value V<VL
0 - No
1 - Yes
3
Parasite Mode (2-wire bus)
0 - No
1 - Yes
4
Overflow the high threshold of measure value V≥VH
0 - No
1 - Yes
4
1-WIRE communication errors
0 - No
1 - Yes
5
Sensor assigned to channel
0 - No
1 - Yes
5
DS2480B controller detected
0 - No
1 - Yes
6
Reserved
0 - No
1 - Yes
6
Reserved (0)
0 - No
1 - Yes
7
Error CRC Scratchpad of sensor
0 - No
1 - Yes
7
Reserved (0)
0 - No
1 - Yes
Query
Byte no Designation Size Value [hex]
00 Module address 1 byte
01 [ 01 to F7]
01 Function code 1 byte
03 / 04
02 Registry address Hi 1 byte
00
03 Registry address Lo 1 byte
C9
04 Registry number Hi 1 byte
00
05 Registry number Lo 1 byte
02
06 CRC - Lo 1 byte
---
07 CRC - Hi 1 byte
---
26
To Next Page
Loading...