21 |
M 5 7 4 8
2)
All sensor names on a particular device are unique
–
if duplicate f
unctions are supported append a ‘_x’
string, where x represents the instance. For example,
Temperature_1
and
Temperature_2
could be used if 2
temperature devices are present.
7.3
Temperature Sensor
The Temperature sensor provides temperature readings in the range -40 to +85
o
C.
Temperature Descriptor
Offset
Name
Value
Description
0x00
Sensor Type
0x01
Temperature in
o
C
0x01
Data Type/Format
0x06
Float type
0x02
Configuration
??
See subsections below
0x03
Sensor Device
0x00
Not Used
0x04
UOMR
“oC”
Units of measure
Temperature Sensor Type
Sensor Type
SI Derived Units Measurement
0x01
o
C
Temperature
Temperature Data Type/Format
Temperature Data Type/Format
7
6
5
4
3
2
1
0
Smart
Sensor
Writeable
Factory
Calibrate
Reserved
Data Type
0
0
0
0
6 == Floating point
Data Type
The 4-bit Data Type field determines the type of data of the specific senso.
Factory Calibrate
Factory calibration is available for the SP-003 process inputs. Clearing this bit will disable
the factory calibration values.
Writeable
The writeable bit is cleared, indicating that the sensor values may not be overwritten.
Smart Sensor
This bit is cleared.Temperature Configuration Byte
Temperature Configuration Byte
7
6
5
4
3
2
1
0
Available
Assigned
Apply
Scaling
Lock
Sensor Selection
0
0
?
?
0x01(Internal Use)
