Microsoft Word C033660e doc Reference number ISO 16844 7 2004(E) © ISO 2004 INTERNATIONAL STANDARD ISO 16844 7 First edition 2004 08 15 Road vehicles — Tachograph systems — Part 7 Parameters Véhicules[.]
Record data identifiers
The record data identifiers used in the diagnostic services specified in ISO 16844-6 shall be in accordance with Table 1
Hex Identifier description Cvt Simplified mnemonic
F187 VehicleManufacturerSparePartNumber U VMSPN R/W F188 VehicleManufacturerECUSoftwareNumber U VMECUSWN R/W F189 VehicleManufacturerECUSoftwareVersionNumber U VMECUSWVN R/W
F191 VehicleManufacturerECUHardwareNumber M VMECUHWN R/W F192 SystemSupplierECUHardwareNumber M SSECUHWN R F193 SystemSupplierECUHardwareVersionNumber M SSECUHWVN R F194 SystemSupplierECUSoftwareNumber M SSECUSWN R
Hex Identifier description Cvt Simplified mnemonic
F900-F9FF Reserved for tachograph systems M — —
Hex Identifier description Cvt Simplified mnemonic
F927 Driver1Current DurationOfSelectedActivity M D1CDOSA R F928 Driver2Current DurationOfSelectedActivity M D2CDOSA R
F938 Driver1CumulatedDrivingTimePreviousAndCurrentWeek M D1CDTPACW R F939 Driver2CumulatedDrivingTimePreviousAndCurrentWeek M D2CDTPACW R
Routine identifiers
The routine identifiers used in the diagnostic services specified in ISO 16844-6 shall be in accordance with Table 2
Table 2 — Routine identifiers Hex Routine identifier Cvt Simplified mnemonic
Transmitted signal ranges
For the ranges used to determine the validity of a transmitted signal, see Table 3
For the ranges used to denote the state of a discrete parameter, see Table 4
For the ranges used to denote the state of a control mode command, see Table 5
The error indicator range allows a module to promptly signal that valid parameter data is unavailable due to a malfunction in the sensor, sub-system, or module.
The values in the "not available" range allow a module to send messages indicating parameters that are either unavailable or unsupported Meanwhile, the values in the "not requested" range enable a device to issue command messages, specifying parameters for which no response is anticipated from the receiving device.
In the event of a component failure that hinders the transmission of valid parameter data, the designated error indicator from Tables 3 and 4 must be utilized However, if the measured or calculated data produce a value that exceeds the specified parameter range, the error indicator should not be employed Instead, the data should be transmitted using the relevant minimum or maximum parameter value.
When transmitting a specified parameter according to ISO 16844, padding bits must be added to ensure the length is a whole number of bytes if it is not already This is achieved by setting the most significant bits to zero For example, the parameter Driver1WorkingStates, RDI F903 with a 3-bit length of 010 is transmitted as one byte with a value of 02 in hexadecimal.
Range name 1 byte 2 bytes 4 bytes ASCII
Valid signal 00 16 to FA 16 0000 16 to FAFF 16 00000000 16 to FAFFFFFF 16 01 16 to FE 16
251 64 256 to 64 511 4 211 081 216 to 4 227 858 431 Parameter specific indicator
FB 16 FB00 16 to FBFF 16 FBxxxxxx 16 none
252 to 253 64 512 to 65 023 4 227 858 432 to 4 261 412 863 Reserved range for future indicator bits FC 16 to
FC00 16 to FDFF 16 FC000000 16 to FDFFFFFF 16 none
255 65 280 to 65 535 4 278 190 080 to 4 294 967 294 255 Not available or not requested
Table 4 — Transmitted values of discrete parameters (measured)
Disabled (off, passive, etc.) 00 Enabled (on, active, etc.) 01
Not available or not installed 11
Table 5 — Transmitted values of control commands (status)
Command to disable function (turn off, etc.) 00 Command to enable function (turn on, etc.) 01 Reserved 10 Don't care/take no action (leave function as is) 11
The data type may be either status or measured
Status indicates the current condition of a multi-state parameter or function, determined by actions taken by the transmitting node These actions stem from calculations that utilize local, network-measured, and status information.
Measured data convey the current value of a parameter as measured or observed by the transmitting node to determine the condition of the specified parameter.
Parameter specifications
Seconds
The UTC parameter part Seconds shall provide data length 1 byte resolution 0,25 s/bit gain, 0 s offset operating range 0 to 59,75 s type measured
The RDI is not used The parameter part Seconds may be addressed through RDI attached to Time/Date.
Minutes
The UTC parameter part Minutes shall provide data length: 1 byte resolution: 1 min/bit gain, 0 min offset operating range: 0 to 59 min type: measured
The RDI is not used The parameter part Minutes may be addressed through RDI attached to Time/Date.
Hours
The UTC parameter part Hours shall provide data length: 1 byte resolution: 1 h/bit gain, 0 h offset operating range: 0 to 23 h type: measured
The RDI is not used The parameter part Hours may be addressed through RDI attached to Time/Date.
Month
The UTC parameter part Month shall provide data length: 1 byte resolution: 1 month/bit gain, 0 month offset operating range: 1 to 12 months type: measured
The RDI is not utilized, but the Month parameter can be linked to the RDI associated with Time/Date It is important to note that a value of 0 for the month indicates null, while a value of 1 represents January, 2 represents February, and so on.
Day
The UTC parameter part Day shall provide data length: 1 byte resolution: 0,25 day/bit gain, 0 day offset operating range: 0,25 to 31,75 days type: measured
The RDI is not used The parameter part Day may be addressed through RDI attached to Time/Date
NOTE 1 A value of 0 for the date is null The values 1, 2, 3, and 4 are used to identify the first day of the month, while 5,
6, 7, and 8 identify the second day of the month, etc
NOTE 2 This parameter does not influence or change the hours parameter above.
Year
The UTC parameter part Year shall provide data length: 1 byte resolution: 1 year/bit gain, +1985 year offset operating range: 1985 to 2235 year type: measured
The RDI is not used The parameter part Year may be addressed through RDI attached to Time/Date
NOTE A value of 0 for the year identifies the year 1985; a value of 1 identifies 1986; etc.
Local minute offset
The parameter LocalMinuteOffset shall provide data length: 1 byte resolution: 1 min/bit gain, −125 min offset operating range: −59 to +59 min; type: measured
The RDI is not used The parameter part Local Minute Offset may be addressed through RDI attached to Time/Date
NOTE 1 For the recording unit, it represents an offset from UTC set by the driver
NOTE 2 European legislation restricts the full range of use in tachographs Only three (3) fixed values, 0, +30 min and –30 min, are used.
Local hour offset
The parameter LocalHourOffset shall provide data length: 1 byte resolution: 1 h/bit gain, −125 h offset operating range: −23 to +23 h type: measured
The RDI is not used The parameter part Local Hour Offset may be addressed through RDI attached to Time/Date
NOTE For the recording unit, it represents an offset from UTC set by the driver.
Vehicle identification number
The parameter VehicleIdentificationNumber as assigned by the vehicle manufacturer shall provide data length: variable — up to 200 characters resolution: ASCII operating range: ASCII type: measured
In this application, the VIN-length shall be 17 characters
NOTE The ASCII character “*” is reserved as a delimiter.
Trip group 1
The parameter TripGroup1 is a command signal used only to reset trip distance
System event
The SystemEvent parameter signifies the occurrence of a tachograph event, such as over-speed, exceeded continuous driving time, or maintenance due When a tachograph event occurs, this parameter should be set to true It is essential for activating a visual warning signal for the driver.
Handling information
The parameter HandlingInformation shall indicate that handling information is present, as follows Information may include “no printer paper”, “no driver card”, etc
Tachograph performance
The parameter TachographPerformance shall be set while the tachograph is performing the auto test and indicate as follows
Direction indicator
The parameter DirectionIndicator shall indicate the direction of the vehicle motion (if any), as follows
Requested illumination percentage
The parameter RequestIlluminationPercentage which shall provide data length: 1 byte resolution: 0,4 % bit gain, 0 % offset data range: 0 to 100 % type: measured
Engine speed
The EngineSpeed parameter measures the actual engine speed, calculated over a minimum crankshaft angle of 720 degrees divided by the number of cylinders It has a data length of 2 bytes, with a resolution of 0.125 r/min per bit gain and a 0 r/min offset The upper byte resolution is 32 r/min per bit, and the data range spans from 0 to 8031.875 r/min, classified as a measured type.
Tachograph vehicle speed
The TachographVehicleSpeed parameter represents the vehicle's current speed as measured by the tachograph It has a data length of 2 bytes and a resolution of 1/256 km/h per bit, with a gain of 0 km/h offset The upper byte resolution is 1.0 km/h per bit, and it operates within a range of 0 to 250.996 km/h, classified as a measured type.
Driver 1 working state
The parameter Driver1WorkingState shall indicate the state of work of driver 1, i.e activity currently selected on the recording unit for the driver, as follows
Driver 2 working state
The parameter Driver2WorkingState shall indicate the state of work of driver 2, i.e activity currently selected on the recording unit for the co-driver, as follows
Drive recognize
The DriverRecognize parameter signifies the detection of vehicle motion Motion is confirmed when the recording unit receives more than one pulse per second from the motion sensor for a duration of at least five seconds.
Driver 1 time related states
The Driver1TimeRelatedStates parameter indicates whether driver 1 is approaching or exceeding working time limits, with only the values 0001 and 0010 being mandatory Limits #3 to #6 serve as optional warnings in accordance with tachograph regulations, and if utilized, must follow the specified format.
0000 no time-related warning detected
0010 limit #2: 4 1/2 h reached (continuous driving time exceeded)
0011 limit #3: 15 minutes before optional warning 1
0101 limit #5: 15 min before optional warning 2
Driver card, driver 1
The DriverCardDriver 1 parameter indicates whether driver 1's card is inserted in the recording unit's driver slot If a different card, such as a workshop, control, or company card, is inserted, the DriverCardDriver 1 parameter will show 00, indicating that the driver card is not present.
Overspeed
The parameter Overspeed shall be used to indicate that the current vehicle speed has exceeded the authorised speed of the vehicle during a period of more than 60 s, as follows
Driver 2 time related states
The parameter Driver2TimeRelatedStates shall be used to indicate that driver 2 (co-driver) approaches/exceeds working time limits, or other limits, as follows
0000 no time related warning detected
0011 limit #3: 15 min before optional warning 1
0101 limit #5: 15 min before optional warning 2
Driver card, driver 2
The parameter DriverCardDriver2 indicates whether driver 2's card is present in the co-driver slot of the recording unit If a different card, such as a workshop, control, or company card, is inserted, the DriverCardDriver2 parameter will be set to 00, signifying that the driver card is not present.
Time date
The parameter group TimeDate shall be transmitted from the recording unit, i.e all parameters shall be supported, as follows
2: minutes (see 5.2.2) 3: hours (see 5.2.3) 4: months (see 5.2.4) 5: days (see 5.2.5) 6: years (see 5.2.6) 7: local minute offset (5.2.7) 8: local hour offset (see 5.2.8) RDI (hex): F90B
Reset heartbeat message
The parameter ResetHeartbeatMessage shall be used to indicate if the reset heartbeat message is used, as follows
00 disabled (the reset heartbeat message is not used by the recording unit)
01 enabled (the reset heartbeat message is used by the recording unit)
Adjust local minute offset
The AdjustLocalMinuteOffset parameter is utilized to establish the local time offset in minutes from UTC This parameter specifically affects only the local minute offset and has a data length of 1 byte with a resolution of 1 minute per bit It supports an operating range of -59 to +59 minutes, with a maximum offset of -125 minutes, and is classified as a measured type.
NOTE European legislation restricts the full range of use in tachographs Only three (3) fixed values, 0, +30 min and –30 min, are used.
Adjust local hour offset
The AdjustLocalHourOffset parameter is designed to set the local time offset from UTC, affecting only the local hour offset It has a data length of 1 byte and a resolution of 1 hour per bit, with an operating range of -23 to +23 hours and a measured type.
Priority level of TCO1 message
The parameter PriorityLevelOfTCO1Message shall be specified by end of line programming, and shall provide data length: 3 bits
High resolution total vehicle distance
The HighResolutionTotalVehicleDistance parameter measures the total distance traveled by the vehicle throughout its operation It has a data length of 4 bytes, a resolution of 5 meters per bit, and an offset of 0 meters The operating range extends from 0 to +21,055,406 kilometers, and the data is classified as measured.
High resolution trip distance
The parameter HighResolutionTripDistance shall indicate travelled distance during all or part of a journey, and shall provide data length: 4 bytes resolution: 5 m/bit gain, 0 m offset operating range: 0 to +21 055 406 km type: measured
Service component identification
The ServiceComponentIdentification parameter identifies the component closest to its next service inspection, as detailed in Table 6 It provides essential information for service inspections, including periodic inspections for the recording unit and the card expiry date for driver cards The data length is 1 byte, with a resolution of 1 component ID per bit, operating within a range of 0 to 250, and is classified as a measured type.
0 Service check for entire vehicle
1 Brake lining; left front axle
2 Brake lining; right front axle
3 Brake lining; left rear axle
4 Brake lining; right rear axle
16 Regulated general check for entire vehicle
253 No action to be taken
Service delay/calendar time based
The ServiceDelay/CalendarTimeBased parameter indicates the number of weeks until the next vehicle service inspection is due If the service inspection has already been completed, a negative value will be reported The specific component needing service will be identified by its service component identification.
The time is calculated by determining the difference between the week when service inspection is due and the current week, defined as the period from 00:00 hours UTC on Monday to 24:00 UTC on Sunday This parameter offers a data length of 1 byte, with a resolution of 1 week per bit gain and an operating range of -125 to +125 weeks, classified as a measured type.
Driver 1 identification
The Driver1Identification parameter is essential for retrieving the identity of driver 1 from a driver card inserted into the recording unit It consists of three bytes representing the issuing member state of the driver card and sixteen bytes for the card number, as outlined in the tachograph regulation, Appendix 1: Nation Alpha and Card Number format The total data length is 19 bytes, formatted in ASCII, with the first three bytes indicating the issuing member state.
Driver 2 identification
The Driver2Identification parameter is essential for retrieving the identity of driver 2 from a driver card inserted into the recording unit It consists of three bytes representing the issuing member state of the driver card and sixteen bytes for the card number, as outlined in the tachograph regulation, Appendix 1: Nation Alpha and Card Number format The total data length is 19 bytes, with the ASCII type measured from byte 1 to 3 for the issuing member state.
K factor
The KFactor parameter represents the current constant of the recording equipment, indicating the input signal necessary to display and record a distance of 1 km This value is derived from the latest calibration and provides a data length of 2 bytes, with a resolution of 0.001 pulse/m, a gain of 0, and an operating range of 0 to 64,255 pulse/m, classified as a measured type.
Speed measurement range
The parameter SpeedMeasurementRange of the tachograph shall provide data length: 2 bytes resolution: 1/256 km/h/bit gain, 0 km/h offset, upper byte resolution = 1,0 km/h/bit operating range: 0 to 250,996 km/h type: measured
Number of teeth of phonic wheel
The parameter NumberofTeethofPhonicWheel shall provide data length: 1 byte resolution: 1 tooth/bit gain, 0 tooth offset operating range: 0 to 250 type: measured
Tachograph output shaft speed
The parameter TachographOutputShaftSpeed represents the calculated speed of the transmission output shaft, featuring a data length of 2 bytes and a resolution of 0.125 r/m/bit It has a gain of 0 rpm offset, with the upper byte resolution set at 32 r/min per bit, and operates within a range of 0 to 8031.875 r/min.
L factor
The LFactor parameter represents the effective circumference of the vehicle's wheel tyres, calculated as the average distance traveled by the driving wheels during one complete rotation based on the latest calibration It has a data length of 2 bytes, a resolution of 0.125 x 10^{-3} m/bit gain, and an offset of 0, with an operating range from 0 to 8.031 m This parameter is classified as a measured type.
W factor
The WFactor parameter represents the current numerical characteristic of the output signal from the vehicle component connected to the recording equipment, such as the gearbox output shaft or axle This measurement is taken while the vehicle travels 1 km under standard test conditions, based on the latest calibration The data is formatted with a length of 2 bytes, a resolution of 0.001 pulse/m, a gain of 0, and an operating range of 0 to 64,255 pulse/m, indicating it is a measured type.
NOTE For more details, see the tachograph regulation.
Pulses/revolution of output shaft
The Pulses/RevolutionOfOutputShaft parameter indicates the number of pulses generated per revolution of the gearbox output shaft It features a data length of 2 bytes, a resolution of 0.001 pulse per revolution per bit gain, and an offset of 0 The operating range extends from 0 to 64,255 pulses per revolution.
Transmission repetition rate of TCO1 message
The parameter TransmissionRepetitionRateOfTCO1Message shall be specified by the end-of-line programming, and shall provide data length: 2 bit
01 50 ms (default value) type: status
Tyre size
The TyreSize parameter represents the current dimensions of the external driving wheels, as defined by Council Directive 92/23/EEC It is based on the latest calibration and provides data with a length of 15 characters, using ASCII format, and operates within the ASCII range.
Next calibration date
The parameter NextCalibrationDate shall be carried out by the authorised inspection authority, and shall provide data length: 3 bytes
Driver 1 continuous driving time
The parameter Driver1ContinuousDrivingTime is calculated based on the total driving time of a specific driver since their last break or rest period of 45 minutes or more, which can be divided into multiple segments of at least 15 minutes This parameter has a data length of 2 bytes, a resolution of 1 minute per bit gain, an offset of 0 minutes, and operates within a range of 0 to 64255, and is classified as a measured type.
The calculations consider past activities recorded on the driver card when it is inserted If the driver fails to insert the card, the computations rely on data memory recordings from the current period without a card and the corresponding slot.
NOTE For more details, see the tachograph regulation
The method of calculating continuous driving time and cumulative break time is utilized by recording equipment to issue warnings about continuous driving durations, without influencing the legal interpretation of these time periods.
Unknown periods correspond to periods when the driver card was not inserted in the recording equipment and for which no manual entry of driver activities was made.
Driver 2 continuous driving time
The Driver2ContinuousDrivingTime parameter must align with the continuous driving time of Driver 1 It features a data length of 2 bytes, a resolution of 1 minute per bit gain, and a 0-minute offset The operating range is from 0 to 64,255, and the data type is measured.
Driver 1 cumulative break time
The Driver1CumulativeBreakTime parameter is calculated based on the current accumulated availability, break, rest, or unknown times of 15 minutes or more for a specific driver, starting from the end of their last availability or break/rest period of 45 minutes or more This 45-minute duration can be divided into multiple segments of 15 minutes or more The parameter offers a data length of 2 bytes, with a resolution of 1 minute per bit gain and a 0-minute offset, operating within a range of 0 to 64255, and is classified as a measured type.
The calculations consider past activities recorded on the driver card, but do not include unknown periods of negative duration caused by overlaps between two different recording devices.
If the driver fails to insert their card, the calculations are derived from the data memory records corresponding to the current period without a card and the specific slot in question.
NOTE For more details, see the tachograph regulation
The method of calculating continuous driving time and cumulative break time is utilized by recording equipment to issue warnings regarding continuous driving duration, without influencing the legal interpretation of these time periods.
Unknown periods correspond to periods where the driver’s card was not inserted in the recording equipment and for which no manual entry of driver activities was made.
Driver 2 cumulative break time
The parameter Driver2CumulativeBreakTime shall be according to driver 1 cumulative break time, and shall provide data length: 2 byte resolution: 1 min/bit gain, 0 min offset operating range: 0 to 64255 type: measured
Driver 1 current duration of selected activity
The parameter Driver1CurrentDurationOfSelectedActivity indicates the current duration of the selected activity, which may include the driving period, availability period, rest period, or work period This parameter has a data length of 2 bytes, a resolution of 1 minute per bit gain, and an offset of 0 minutes, with an operating range from 0 to 64,255 It is classified as a measured type.
Driver 2 current duration of selected activity
The parameter Driver2CurrentDurationOfSelectedActivity indicates the current duration of the selected activity, which may include the current availability, rest, or work period This parameter has a data length of 2 bytes, a resolution of 1 minute per bit gain, and an operating range from 0 to 64255, with a 0-minute offset It is classified as a measured type.
Speed authorised
The SpeedAuthorised parameter is designated for setting speed limits, featuring a data length of 2 bytes and a resolution of 1/256 km/h per bit It has a gain of 0 km/h offset and an upper byte resolution of 1.0 km/h per bit, with an operational range extending from 0 to 250.996 km/h, and is classified as a measured type.
Tachograph card, slot 1
The parameter TachographCardSlot1 indicates whether a tachograph card is present in the driver's slot of the recording unit It has a data length of 1 byte and a resolution of 1 type/bit The operating range is defined as 0 for no tachograph card present (or a card that is unrecognized by the recording unit) and 1 for when a driver card is present.
2: workshop card present 3: control card present 4: company card present
5 to 250 not used type: measured
Driver 1 name
The parameter Driver1Name is utilized to retrieve the full name of driver 1, which includes both the surname and first name, from the driver card currently inserted in the recording unit This parameter is defined as type: measured and has a byte size of 1, specifically for the surname code page.
37: code page for first name 38–72: first name
a code page value specifying the part of the ISO/IEC 8859 used to code the surname and the first name, and
the surname (family name) and first name coded in accordance with the ISO/IEC 8859 code page
NOTE For more details, see the tachograph regulation.
Driver 2 name
The Driver2Name parameter is utilized to retrieve the surname and first name of driver 2 from the co-driver card currently inserted in the recording unit's co-driver slot This data is formatted as 72 bytes of ASCII, with a measured byte of 1 designated for the surname's code page.
37: code page for first name 38–72: first name
a code page value specifying the part of the ISO/IEC 8859 used to code the surname and the first name, and
the surname (family name) and first name coded in accordance with the ISO/IEC 8859 code page
NOTE For more details, see the tachograph regulation.
Tachograph card, slot 2
The TachographCardSlot2 parameter indicates whether a tachograph card is present in the co-driver slot of the recording unit It has a data length of 1 byte and a resolution of 1 type/bit, with an operating range that includes: 0 for no card present or unrecognized card type, 1 for driver card present, 2 for workshop card present, 3 for control card present, and 4 for company card present.
5 to 250: not used type: measured
Out of scope condition
The OutOfScopeCondition parameter indicates the status of any currently open out-of-scope specific conditions, as outlined in the tachograph regulation It operates within a defined range, where a value of 00 signifies that no out-of-scope condition is currently active.
01: out of scope condition opened type: measured
Mode of operation
The ModeOfOperation parameter indicates the current operational mode of the recording unit based on the valid tachograph cards inserted, as outlined in the tachograph regulation This parameter has a data length of 1 byte and operates within the range of 0, representing the operational mode.
1: control mode 2: calibration mode 3: company mode
Driver 1 cumulated driving time previous and current week
The parameter Driver1CumulatedDrivingTimePreviousAndCurrentWeek represents the total accumulated driving times for driver 1 over the previous and current week It has a data length of 2 bytes, a resolution of 1 minute per bit gain, and an offset of 0 minutes The operating range for this parameter is from 0 to 64255, and it is classified as a measured type.
Driver 2 cumulated driving time previous and current week
The parameter Driver2CumulatedDrivingTimePreviousAndCurrentWeek calculates the total accumulated driving times for driver 2 (co-driver) over the previous and current week It has a data length of 2 bytes, a resolution of 1 minute per bit, and operates within a range of 0 to 64255, with no offset This parameter is classified as a measured type.
Real time speed pulses
The RealTimeSpeedPulses parameter enables the simulation or monitoring of frequency values from the motion sensor This motion sensor signal can be substituted using the InputOutputControlByIdentifier service, with the recordIdentifier set to RealTimeSpeedPulses (F940H) and the InputOutputControlParameter set to ShortTermAdjustment The speed derived from this replacement value can be accessed either on the display or through the readDataByIdentifier service, with the recordIdentifier set to TachographVehicleSpeed (F902H).
The simulated value shall not influence recorded data If the tachograph detects sensor speed during this test, the test will be automatically aborted
This parameter shall provide data length: 2 bytes resolution: 0,1 pulses/s per bit gain, 0 offset operating range: 0 to 6425,5 pulses/s type: measured
CalibrationInputOutput
The CalibrationInputOutput parameter enables the management of the test and calibration pin functions for the recording unit's front connector through the InputOutputControlByIdentifier service The current configuration can be accessed using the ReadDataByIdentifier service.
The test and calibration pin is utilized to input a replacement signal for the motion sensor, designated as the test signal, with the calibrationInputOutput parameter configured to "enable as speedSignalInput." Alternatively, the motion sensor signal can be substituted using the service InputOutputControlByIdentifier, where the recordIdentifier is set to RealTimeSpeedPulses (F940H) and the InputOutputControlParameter is defined as ShortTermAdjustment (refer to section 5.2.63).
The test and calibration pin is utilized to measure the motion sensor signal, with the calibrationInputOutput parameter configured to enable realTimeSpeedSignalOutputSensor Alternatively, the motion sensor value can be accessed through the service readDataByIdentifier, using the recordIdentifier set to RealTimeSpeedPulses.
The test and calibration pin shall be used to measure the UTC clock signal with the calibrationInputOutput parameter set to “enable as RTCOutput”
This parameter shall provide data length: 1 byte resolution: … operating range: 0 to 3 type: N/A
The possible values for the controlState parameter/dataRecord shall be in accordance with Table 7
Table 7 — Possible controlState/dataRecord values for calibrationInputOutput
Disable 0 I/O line is disabled (default state)
Synchronization jump width
The SynchronizationJumpWidth parameter must be adjusted through diagnosis, based on the manufacturer's discretion, to accommodate various CAN network topologies It features a data length of 1 byte, a resolution of 1 Tq, and a data range from 1 to 4 Tq, classified as a measured type.
The default value shall be according to ISO 16844-4.
Sample point
The SamplePoint parameter defines the specific time at which the bus level is read, determining the value of the corresponding bit This parameter is set through end-of-line programming and features a data length of 1 byte, a recommended resolution of 0.4% per bit gain, and a data range from 60% to 100%, categorized as measured data.
For RDI and access, the resolution shall be adjusted according to the hardware
The default value shall be 87,5 %.
Time out message error delay
The parameter TimeOutMessageErrorDelay shall contain the number of emission cycles of the specified message before time out failure is declared
If the parameter is set to 3.5 and a message is transmitted every 20 milliseconds, a timeout failure will occur if the message is delayed for more than 70 milliseconds, calculated as 3.5 times 20 milliseconds.
This value shall be specified by the vehicle manufacturer The parameter shall provide data length: 1 byte resolution: 0,5/bit gain, 0 offset data range: 0 to 125 type: status
The default value shall be 3.
Error management initialisation inhibition
The parameter ErrorManagementInitialisationInhibition shall specify the inhibition period of the CAN network error management system at the key switch on event
To accommodate the varying reset timings of ECUs on the CAN network, network error management will be temporarily disabled The duration of this inhibition will be determined at the manufacturer's discretion.
The parameter shall provide data length: 1 byte resolution: 0,1 s/bit gain, 0 s offset data range: 0 to 25,0 s type: status
The default value shall be 2 s.
Registering member state
The registration centre will assign the parameter RegisteringMemberState, which is detailed in the tachograph regulation, Appendix 1, Nation Alpha Format This parameter will have a data length of 3 bytes, a resolution of ASCII, an operating range of ASCII, and is classified as a measured type.
NOTE The ASCII character “*” is reserved as a delimiter.
Vehicle registration number
The parameter VehicleRegistrationNumber shall be as assigned by the registration centre The VRN shall include
a code page value specifying the part of ISO/IEC 8859 used to code the VRN, and
the VRN coded in accordance with the ISO/IEC 8859 code page
NOTE For more details, see the tachograph regulation
The parameter shall provide data length: 14 bytes ASCII type: measured byte: 1: code page
Vehicle registration date
The diagnostic trouble codes for tachograph systems shall be in accordance with Table 8
Table 8 — DTCs in tachograph systems
1 Sensor power supply above maximum 80 00 00 20 07 below minimum 80 00 00 20 03 M no signal 80 00 00 20 04
7 Printer paper out, no paper 80 00 00 06 60 M
8 No speed signal from sensor
9 Invalid speed signal or data link error
10 Speed sensor — Recording Unit: no data link signal
Item Description DTC severity Functional unit High
19 No ignition, but speed pulses present 40 00 00 09 00 M
22 CAN communication instrument recording unit
24 Calibration memory, read/ write error 80 00 00 0D 33 M
34 Speed pulse output recording unit (B7) 40 00 00 30 00 M
[1] Council Regulation (EEC) No 3820/85 of 20 December 1985 on the harmonization of certain social legislation relating to road transport