31 |
M 5 7 4 8
Sensor Trigger
The Sensor Trigger function is used to reset the IPSO min/max values as well as controlling
the Calibration process.
Sensor Trigger Function
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
Reset
Min/Max
15
14
13
12
11
10
9
8
0
0
Calibration
Reset
Calibration
Status
Calibration
Mode
Capture
High
Capture
Low
Calibration
Start
Setting the Reset Min/Max bit to 1 will reset the Min/Max values recorded by the IPSO
process.
No User Calibration process is supported on the Apparent Heat sensor and all Calibration
bits should be written as 0.
7.8
Digital Input/Output (DIO) Interface
The SP-003/SP-004 supports a Digital Input/Output Interface that provides 2 digital inputs which are hardwired to
the Digital outputs. The DIO inputs may be used to detect the state of external switches (output off) or to monitor
the state of the outputs.
DIO Descriptor
Offset
Name
Value
Description
0x00
Sensor Type
0x18
Digital Type (Bit mapped)
0x01
Data Type/Format
0x46
Configurable, Float type
0x02
Configuration
0x23
Scaling applied, Bits 0 and 1 enabled
0x03
Sensor Device
0x0f
DIN bits enabled / inverted
0x04
UOMR
“DIN”
Units of measure
DIO Sensor Type
The interface provides a bit mapped input of the 2 digital signal lines.
Sensor Type SI Derived Units
Measurement
0x18
DIN
Bit mapped digital inputs
DIO Data Type/Format
DIO 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 sensor.