HLS-440P A Datasheet HLS-440P B, HLS-440P A | P7-P9

ams Datasheet Page 7

[v1-00] 2015-Apr-01 Document Feedback

HLS-440P − Electrical Interface

Figure 7:

CAN Matrix Message Layout HLS-440P

System: H2ES Receiver

Name:

A: H2 Exhaust Sensor

B: H2 Ambient Sensor

ID: (hex)

A: 0x638 B:0x640

Datalengthcode:

Interrupt:

no Rev. 3.3

Transceive:

Remote:

Repetition rate:

100 ms MSB LSB

variables

short name datatype resolution phys. range / unit raw range no value b7 b6 b5 b4 b3 b2 b1 b0

Byte-No.

H2 Concentration

H2ES_Con byte 0,05 0 .. 10 Vol.% H2 0 .. 200 255

Byte 0

Status

Sensor not ready H2ES_not_ready bit b0

Byte 1

Error Category H2ES_Err_Cat 2 bit b2 b1

EMC correction active H2ES_EMC_Corr bit b3

negative drift info H2ES_neg_drift1 bit b4

negative drift warning H2ES_neg_drift2 bit b5

negative drift alarm H2ES_neg_drift3 bit b6

Error 5 bit x

SW Version y.z

H2ES_SW byte 1

0 .. F . 0 .. F

0.. 255 y yyyzzzzByte 4

HW Version

Type H2ES_HW_Type 2 bit 1 0 0 b7 b6

Byte 5

HW revision H2ES_HW_Rev 6 bit 1 0 .. 63 0 .. 63 b5 b4 b3 b2 b1 b0

Byte 5

Msg Counter

H2ES_Count byte 1 0 .. 127 0 .. 127 255 to be incremented each message !

Byte 6

Safety Byte - CRC Byte 0 .. Byte 6

H2ES_Safety byte 1 0.. 255 Byte 7

Definition Error Category : Code Name Description

0 No Error H2ES Sensor OK

1 Performance Error General function still given (e.g. tolerance range may be increased to 1 % vol.)

2 Slight functional error General function still given but high likelihood for upcoming severe error (sensor should be replaced)

3 Severe functional error Severe error, general function NOT given anymore, sensor not longer trustable (= signal not available)

Definition HW Version Type : Code Name Description

0 H2ES Type A H2 Exhaust Sensor

1 H2AS H2 Anode Sensor

2 H2S H2 Ambient Sensor

3 H2ES Type B H2 Stack Module Vent Sensor

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HLS-440P − Electrical Inter face

Byte 0 H

Concentration

Figure 8:

Byte 0 Bit Order

This byte shows the H

concentration in a resolution of 0.05.

x = Concentration in % Hydrogen

Byte value = (x % H

)* 200/ (10 % H

)

x % = byte value *(10 % H

)/200

Range: 0 - 200 (Hexadecimal 0 - C8)

No value: 255 (Hexadecimal FF)

Values: 0 - 10 % H

Resolution: 0.05 = (10 % H

) / 200

The No value is sent if there is no valid H

concentration

(accompanied by Not_ready bit in status byte (Byte 1))

Byte 1 Status

Figure 9:

Byte 1 Status Bit Assignment

This byte shows the status of the module.

Bit 0: If the not_ready bit is set, the module is not up or not

working.

Value: 0 or 1

Bit 1 + 2: The error category

Value: 0 - 3

The figure below describes the error category definition

Bit

MSB

6 5 4 3 2 1

LSB

Byte 0 XXXXXXXX

Bit

MSB

6 5 4 3 2 1

LSB

Byte 1 Bit 7

Bit 6

Neg_

drift3

Bit 5

Neg_

drift2

Bit 4

Neg_

drift1

Bit 3

EMC_

Corr

Bit 2 Err_

Category

Not_ready

(EQ1)

(EQ2)

ams Datasheet Page 9

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HLS-440P − Electrical Interface

Figure 10:

Definition of Error Category

Bit 3: EMC_Corr...EMC correction active

Value: 0 or 1

Bit 4: Negative drift info. If this bit is set, the prediction has gone

below the first of three warning levels.

Bit 5: Negative drift warning. If this bit is set, the prediction has

gone below the second warning level.

Bit 6: Negative drift alarm. If this bit is set, the prediction has

gone below the third warning level.

Bit 7 is not used.

Byte 4 Software Version Y.Z

Figure 11:

Byte 4 Software Version Numbering Code

This byte shows the firmware version.

View: Y.Z

Range: 0 - 255 (Hexadecimal 0 - FF)

Value: 0.0 - 15.15 (Hexadecimal 0.0 - F.F)

Code Name Description

0 No error Sensor OK

1 Performance error General function still given; Warm start-up indication (<5 s)

2 Slight functional error

General function still given but high likelihood for

upcoming severe error (sensor should be replaced)

3 Severe functional error

Severe error, general function NOT given anymore, sensor

not longer trustable (=signal not available)

Bit

MSB

6 5 4 3 2 1

LSB

Byte 4 YYYYXXXX

P1-P3 P4-P6 P7-P9 P10-P12 P13-P15 P16-P18 P19-P21 P22-P23

HLS-440P A

Mfr. #:

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Manufacturer:

ams

Description:

Air Quality Sensors HLS-440P Type A Mod

Lifecycle:

New from this manufacturer.

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HLS-440P A

HLS-440P A

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