TECHNICAL DESCRIPTION Titel/Title:
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D8 SERIAL DATA OUTPUT
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D8 SERIAL DATA OUTPUT Table of contents 1. 2. 3. 4. 5.
DOCUMENT REVISION HISTORY..............................................................................................................1 INTRODUCTION ..........................................................................................................................................2 RELEVANT DOCUMENTS...........................................................................................................................2 INTRODUCTION ..........................................................................................................................................2 OVERVIEW...................................................................................................................................................3 5.1. Input and Output Pins.............................................................................................................................3 5.2. Programmable Data ...............................................................................................................................3 6. SERIAL DATA STREAMS ............................................................................................................................3 6.1. General Data Parameters ......................................................................................................................3 6.1.1. Transmission Rate .............................................................................................................................3 6.1.2. Data Frame Format............................................................................................................................3 6.1.3. Output Signal Levels..........................................................................................................................3 6.2. Normal Serial Data Format (SRE Digital Tachograph) ..........................................................................5 6.2.1. Selected Normal Serial Data Bytes Format .......................................................................................5 6.2.1.1. Message Identifier .....................................................................................................................5 6.2.1.2. Working State Driver 1&2..........................................................................................................6 6.2.1.3. Driver 1 State ............................................................................................................................6 6.2.1.4. Driver 2 State ............................................................................................................................6 6.2.1.5. Tachograph Status ....................................................................................................................6 6.2.1.6. Speed/ Speed Authorised .........................................................................................................6 6.2.1.7. Engine Speed............................................................................................................................7 6.2.1.8. Additional information................................................................................................................7 6.2.1.9. Vehicle identification number ....................................................................................................7 6.2.1.10. Driver 1 identification number ...................................................................................................7 6.2.1.11. Driver 2 identification number ...................................................................................................7 6.2.1.12. Vehicle registration number ......................................................................................................7 6.2.1.13. Registering member state .........................................................................................................7 6.3. Extended Serial Data Format (for 2400 compatibility) ...........................................................................8 6.3.1. Selected Extended Serial Data Bytes Format ...................................................................................9 6.3.1.1. Description ................................................................................................................................9 6.3.1.2. Duty/Self Test..........................................................................................................................10 6.3.1.3. Odometer Data........................................................................................................................10 6.3.1.4. Time and date .........................................................................................................................10
1. DOCUMENT REVISION HISTORY Rev: 01
Date of issue: 2008-10-16
Issued by: Arne Lohage
Date of issue:
Issued by:
First issue. Rev: 02
TECHNICAL DESCRIPTION Titel/Title:
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D8 SERIAL DATA OUTPUT
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Arne Lohage
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2. INTRODUCTION SE5000 will implement two versions of serial data output, the digital version specified in chapter 6.2 and the 2400 extended version specified in chapter 6.3 in this document.
3. RELEVANT DOCUMENTS The appendices and documents listed below are of essential value for the understanding of this document. Appendices No.
Document no.
Title
/1/ /2/ Document Ref. Document no.
Title
[1]
1123_001-990113 01 EC specification of 1b in english l_20720020805en00010252.pdf
[2]
ISO 16844, 1:st edition.
[3]
4. INTRODUCTION The purpose of this document is to define the format of the D8 serial data outputs available in the Stoneridge Electronics Digital Tachograph. SE5000 supports two formats, Standard SRE output and 2400 output. - Standard SRE output is according to requirements on the new trucks that listen to D8. - 2400 output is according to requirements that the old analogue tachograph 2400 had. This means that SE5000 can be configured to support older trucks that listen on D8 instead of CAN. No problem to replace a 2400 with an SE5000.
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5. OVERVIEW 5.1. Input and Output Pins The following data pins shall be used to allow the serial data to be accessed correctly. Rear Board Pin Description D8 Serial Data
5.2. Programmable Data The following data shall be programmed into the unit to allow the serial data to function correctly according to customer wish. RecordDataidentifier D8 Pin Enabled, Serial Data Output
Hex FD12
Description Allows the Serial Data output to have different data formats. FD12 = 0x00; Disable D8 FD12 = 0x01; Enable D8, Standard SRE output FD12 = 0x02; Enable D8, 2400 output FD12 = 0x03; Disable D8
6. SERIAL DATA STREAMS A programmable option shall determine the format of data for the serial data stream. There shall be two different formats, a new one for Stoneridge Electronics Digital Tachograph and one for compatability with 2400 Series tachograph systems. Note: References to switch settings are to programming switches in older series tachographs. These settings have been emulated in the 2400 series tachograph to maintain compatibility with the data streams of these older series tachograph, though physical switches do not exist in practice. Similarly the overspeed limit setting shall be indicated in 'pointer steps' to maintain compatibility. The new Stoneridge Electronics Digital Tachograph shall use data formats based on [1] and [2].
6.1. General Data Parameters 6.1.1. Transmission Rate Baud rate = 1200 bps (1195 actual). Inter message time = max 40 ms for Stoneridge Electronics Digital Tachograph. Repeat time for messages = 500 ms for 2400 compatible serial stream data.
6.1.2. Data Frame Format 11 Bits per frame, consisting of 1 start bit (logic 1) 8 data bits 2 stop bits)
6.1.3. Output Signal Levels
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Logical '0' is 0V from 1.3 kohms. Logical '1' is +8V from 1.3 kohms. Note: This signal polarity is inverted compared with standard RS232 signal polarity.
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6.2. Normal Serial Data Format (SRE Digital Tachograph) This is a new serial data stream for Stoneridge Electronics Digital Tachograph. Its origin is from requirement 153 in reference [1]. All bytes in the serial data stream are sent in Big Endian format. All parameters are based on ISO16844-7, if nothing else is stated in this document. The normal serial stream has the following format and data. 1. A header of 3 sync frames of 0xFF followed by 27.5 ms delay (extended stop bit) 2.
Followed by the bytes of information a)
Number of bytes in message (45 to 48 depending on message type).
b)
Message Identifier (see section 6.2.1.1)
c)
Date & Time (4 bytes TimeReal)
d)
Working State Driver 1&2 (see section 6.2.1.2)
e)
Driver 1 State (see section 6.2.1.3)
f)
Driver 2 State (see section 6.2.1.4)
g)
Tachograph Status (see section 6.2.1.5)
h)
Speed (2 bytes see section 6.2.1.6)
i)
Vehicle Distance (4 bytes HighResOdometer)
j)
Trip Distance (4 bytes HighResTripDistance)
k)
K-factor (2 bytes K-ConstantOfRecordingEquipment)
l)
Engine Speed (2 bytes see section 6.2.1.7)
m)
Speed Authorised (2 bytes see section 6.2.1.6)
n)
Additional information (see section 6.2.1.8)
o)
Vehicle Identification Number - VIN (18 bytes see section 0)
p)
Driver 1 Identification Number - DIN 1 (20 bytes see section 6.2.1.10)
q)
Driver 2 Identification Number - DIN 2 (20 bytes see section 6.2.1.11)
r)
Vehicle Registration Number - VRN (14 bytes see section 6.2.1.12)
s)
Registering Member State - RMS (3 bytes see section 6.2.1.13)
t)
Check Sum (2's complement)
VIN, DIN1, DIN2 and VRN messages very rarely change, and therefore do not have to be sent all the time. To reduce the transmission time of the data the serial data will be transmitted as one of 4 sub messages containing the variable data and one of the VIN, DIN1, DIN2 and VRN parameters. As part of the header a message ID shall be given to identify which of the VIN, DIN 1, DIN 2 or VRN is being transmitted in the stream.
6.2.1. Selected Normal Serial Data Bytes Format 6.2.1.1. Message Identifier Bits 0-3
4-7
Name Message Identifier
Description 0001 – Message containing the VIN 0010 – Message containing the DIN 1 0100 – Message containing the DIN 2 1000 – Message containing the VRN & RMS 0000 – Unused, reserved for future use.
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6.2.1.2. Working State Driver 1&2 Bits 0–2
Name Driver 1 working state
3–5
Driver 2 working state
6–7
Drive Recognise
Description 000 – Break/Rest 001 – Availability 010 – Work 011 – Driving 100 - 101 – Reserved 000 – Break/Rest 001 – Availability 010 – Work 011 - 101 – Reserved 00 – Vehicle motion not detected 01 – Vehicle motion detected
6.2.1.3. Driver 1 State Bits 0–3
Name Driver 1 Time Related States
4–5
Driver Card, Driver 1
6–7
Overspeed
Description 0000 - No time related warning detected 0001 - Limit #1 : 15 minutes before 4 1/2 h 0010 - Limit #2 : 4 1/2 h reached (continuous driving time exceeded) 0011 -1100 - Reserved 1101 – Other 00 - Driver Card not present 01 - Driver Card present 00 – No Overspeed 01 - Overspeed
6.2.1.4. Driver 2 State Bits 0–3
Name Driver 2 Time Related States
4–5
Driver Card, Driver 2
6–7
Description 0000 - No time related warning detected 0001 - Reserved 0010 - Reserved 0011 - 1100 - Reserved 1101 - Other 00 - Driver Card not present 01 - Driver Card present 00 – Unused, reserved for future use.
6.2.1.5. Tachograph Status Bits 0–1
Name System Event
2–3
Handling Information
4–5
Tachograph Performance Direction Indicator
6–7
Description 00 – No Tachograph Event 01 – Tachograph Event 00 – No Handling Information 01 – Handling Information 00 – Normal performance 01 – performance analysis 11 – Not used
6.2.1.6. Speed/ Speed Authorised Bits 0 – 15
Name Speed
Description Range - 0 to 250.996 km/h Resolution - 1/256 km/h/bit gain, 0 km/h offset (upper byte resolution = 1.0 km/h/bit)
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6.2.1.7. Engine Speed Bits 0 – 15
Name Engine Speed
Description Range - 0 to 8031,875 rpm Resolution - 0,125 rpm/bit gain, 0 rpm offset (upper byte resolution = 32 rpm/bit)
6.2.1.8. Additional information Bits 0–1
Name Low Speed
2–3
Pulser disconnect
4–5
Ignition on
6–7
RFU
Description 00 – Vehicle speed is equal or greater than low speed setting 01 – Vehicle speed is less than low speed setting 00 – Speed sender detected as connected 01 – Speed sender detected as not connected 00 – Ignition (pin A3) off 01 – Ignition (pin A3) on 11
Note: “Pulser disconnect” is activated/deactivated when event “Power supply interruption for Motion Sensor” is activated/deactivated.
6.2.1.9. Vehicle identification number Bytes 0 – 16 17
Name Vehicle Identification Number Delimiter
Description ASCII characters ASCII “*”
6.2.1.10. Driver 1 identification number Bytes 0–2
Name Issuing Member State
Description ASCII characters
3 – 18 19
Card Number Delimiter
ASCII characters ASCII “*”
6.2.1.11. Driver 2 identification number Bytes 0–2
Name Issuing Member State
Description ASCII characters
3 – 18 19
Card Number Delimiter
ASCII characters ASCII “*”
6.2.1.12. Vehicle registration number Bytes 0
Name Code Page
Description ASCII characters
1 - 13
Vehicle Registration Number
ASCII characters
6.2.1.13. Registering member state Bytes 0–2
Name Registering member state
Description ASCII characters
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6.3. Extended Serial Data Format (for 2400 compatibility) This is a serial data stream to ensure compatibility when the Stoneridge digital tachograph is retro fitted to 2400 series tachograph systems. All bytes in the serial data stream are sent in Big Endian format. All parameters will be based on ISO16844-7, if nothing else is stated in this document. The extended serial stream will have the following format and data. 1. 3 sync frames of 0xFF followed by 27.5 ms delay (extended stop bit) 2.
Followed by 25 bytes of information a)
Number of information bytes (25)
b)
Speed (km/h / mph)
c)
Revs (20rpm units)
d)
Duty / self test (see section 6.3.1.1)
e)
Flags (see section 6.3.1.1)
f)
Speed DIL switch setting low byte (see section 6.3.1.1)
g)
Speed DIL switch setting high byte (see section 6.3.1.1)
h)
Pulses per Engine Revolution (see section 6.3.1.1)
i)
Revs Calibration data (see section 6.3.1.1)
j)
Revs bands / events (see section 6.3.1.1)
k)
RSL DIL switch setting (see section 6.3.1.1)
l)
RSL speed selected low byte (see section 6.3.1.1)
m)
RSL speed selected high byte (3 bits) (see section 6.3.1.1)
n)
Distance Counter (10 Metre units) (see section 6.3.1.1)
o)
Scale Type/Software Revision (see section 6.3.1.1)
p)
Odometer data byte 1 (see section 6.3.1.1)
q)
Odometer data byte 2
r)
Odometer data byte 3
s)
Odometer data byte 4
t)
Time and Date data Byte 1 (see section 6.3.1.1)
u)
Time and Date data Byte 2
v)
Time and Date data Byte 3
w)
Time and Date data Byte 4
x)
Time and Date data Byte 5
y)
Check Sum (2's complement)
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6.3.1. Selected Extended Serial Data Bytes Format 6.3.1.1. Description Byte number
Data
Resolution SE5000
1.
Number of information bytes (25)
2.
Speed (km/h / mph)
1km/h/bit
3.
Revs (20rpm units)
20revs/bit
4.
Duty / self test
See 6.3.1.2
5.
Flags
Set to 0
6.
Speed DIL switch setting low byte
Set to 0
7.
Speed DIL switch setting high byte
Set to 0
8.
Pulses per Engine Revolution
Set to 0
9.
Revs Calibration data
Set to 0
10.
Revs bands / events
Set to 0
11.
RSL DIL switch setting
Set to FF
12.
RSL speed selected low byte
Set to FF
13.
RSL speed selected high byte
Set to FF
14.
Distance Counter (10 Metre units)
Set to 0
15.
Scale Type/Software Revision
Bits 0-3 set to 0
Comment
Only km/h Configuration if data input is CAN or hard wired.
Bits 4-7 set to C 16.
Odometer data byte 1
See 6.3.1.3
17.
Odometer data byte 2
See 6.3.1.3
18.
Odometer data byte 3
See 6.3.1.3
19.
Odometer data byte 4
See 6.3.1.3
20.
Time and Date data Byte 1
See 6.3.1.4
21.
Time and Date data Byte 2
See 6.3.1.4
22.
Time and Date data Byte 3
See 6.3.1.4
23.
Time and Date data Byte 4
See 6.3.1.4
24.
Time and Date data Byte 5
See 6.3.1.4
25.
Check Sum (2's complement)
Digital tacho has 4 duties for driver and 3 for co driver 2400 has 3 states.
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6.3.1.2. Duty/Self Test Bit 0 1 2 3 4 5 6 7
Name Factory Test Self Test Driver 2 Rest Driver 1 Rest Driver 2 Passive Driver 2 Active Driver 1 Passive Driver 1 Active
Description Never set Never set Driver 1 and Driver 2 working state indication. If card not inserted indication is no duty and no driver/crew bit is set. Rest = Break/Rest Passive = Available Active = Working or Driving
6.3.1.3. Odometer Data The odometer data is stored in BCD format. Byte 1 1 2 2 3 3 4 4
Bits 4-7 0-3 4-7 0-3 4-7 0-3 4-7 0-3
Description Odometer 100000 units Odometer 10000 units Odometer 1000 units Odometer 100 units Odometer 10 units Odometer 1 units Odometer 0.1 units Unused
6.3.1.4. Time and date The time data is stored in BCD format Byte 1 2 3 4 5
Description Minutes (0 – 59) Hours (0 – 23) Day of month (1 - 31) Month (1 – 12) Year (0 – 99, representing the years 1990 - 2089)
