HPS-100 Datasheet, PDF (9/24 Pages) ams AG – Automotive Hydrogen Sensor

HPS-100 − Electrical Interface
Figure 10:
Definition of Error Category
Value
Name
0
No error
1
Performance error
2
Slight functional error
3
Severe functional error
Description
Sensor OK
General function still given; warm start-up indication (<5s)
General function still given but high likelihood for
upcoming severe error (sensor should be replaced)
Severe error, general function NOT given anymore, sensor
not longer trustable (=signal not available)
Bit 3: EMC disturbance detected, compensation active
(0-no disturbance, 1-disturbance)
Bit 4 to 7: Not used.
Byte 2 + Byte 3, Board Temperature
Figure 11:
Byte 2 + Byte 3 Board Temperature Bit Order
Bit
MSB
7
6
5
4
3
2
LSB
1
0
Byte 2
X
X
X
X
X
X
X
X
Byte 3
X
X
X
X
X
X
X
X
These two bytes show the board temperature in ºC.
Range: 0 - 1950 (Hexadecimal 0 – 79E)
Value: -40 ºC to 155 ºC
No value: 65335 (Hexadecimal FFFF)
Resolution: 0.1 ºC
0-399 = -40 ºC to -0.1ºC
400 = 0 ºC
401–1950 = 0.1 ºC to 155 ºC
Byte 2 is the high byte and byte 3 the low byte.
ams Datasheet
[v1-00] 2015-Apr-06
Page 9
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