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Commission Implementing Regulation (EU) 2016/799Dangos y teitl llawn
Commission Implementing Regulation (EU) 2016/799 of 18 March 2016 implementing Regulation (EU) No 165/2014 of the European Parliament and of the Council laying down the requirements for the construction, testing, installation, operation and repair of tachographs and their components (Text with EEA relevance)
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PDF o Fersiynau Diwygiedig
- ddiwygiedig 26/02/202011.25 MB
- ddiwygiedig 17/04/201810.62 MB
- ddiwygiedig 26/05/20169.89 MB
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Changes over time for: Division 5.1.
Changes to legislation:
There are outstanding changes not yet made to Commission Implementing Regulation (EU) 2016/799. Any changes that have already been made to the legislation appear in the content and are referenced with annotations.
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- Signature words omitted by S.I. 2019/453 reg. 110
- Annex 1C modified by S.I. 2023/739 reg. 3 Sch.
5.1. StartDiagnosticSession service U.K.
5.1.1 Message description U.K.
CPR_025The service StartDiagnosticSession is used to enable different diagnostic sessions in the server. A diagnostic session enables a specific set of services according to Table 17. A session can enable vehicle manufacturer specific services which are not part of this document. Implementation rules shall conform to the following requirements:U.K.
There shall be always exactly one diagnostic session active in the VU,
The VU shall always start the StandardDiagnosticSession when powered up. If no other diagnostic session is started, then the StandardDiagnosticSession shall be running as long as the VU is powered,
If a diagnostic session which is already running has been requested by the tester, then the VU shall send a positive response message,
Whenever the tester requests a new diagnostic session, the VU shall first send a StartDiagnosticSession positive response message before the new session becomes active in the VU. If the VU is not able to start the requested new diagnostic session, then it shall respond with a StartDiagnosticSession negative response message, and the current session shall continue.
CPR_026A diagnostic session shall only be started if communication has been established between the client and the VU.U.K.
CPR_027The timing parameters defined in Table 4 shall be active after a successful StartDiagnosticSession with the diagnosticSession parameter set to ‘StandardDiagnosticSession’ in the request message if another diagnostic session was previously active.U.K.
5.1.2 Message format U.K.
CPR_028The message formats for the StartDiagnosticSession primitives are detailed in the following tables.U.K.
| Table 14 | |||
| StartDiagnosticSession Request Message | |||
| Byte # | Parameter Name | Hex Value | Mnemonic |
|---|---|---|---|
| #1 | Format byte — physical addressing | 80 | FMT |
| #2 | Target address byte | EE | TGT |
| #3 | Source address byte | tt | SRC |
| #4 | Additional length byte | 02 | LEN |
| #5 | StartDiagnosticSession Request Service Id | 10 | STDS |
| #6 | diagnosticSession = [one value from Table 17] | xx | DS_… |
| #7 | Checksum | 00-FF | CS |
| Table 15 | |||
| StartDiagnosticSession Positive Response Message | |||
| Byte # | Parameter Name | Hex Value | Mnemonic |
|---|---|---|---|
| #1 | Format byte — physical addressing | 80 | FMT |
| #2 | Target address byte | tt | TGT |
| #3 | Source address byte | EE | SRC |
| #4 | Additional length byte | 02 | LEN |
| #5 | StartDiagnosticSession Positive Response Service Id | 50 | STDSPR |
| #6 | diagnosticSession = [same value as in byte #6 Table 14] | xx | DS_… |
| #7 | Checksum | 00-FF | CS |
| Table 16 | ||||
| StartDiagnosticSession Negative Response Message | ||||
| a – the value inserted in byte #6 of the request message is not supported, i.e. not in Table 17, | ||||
| b – the length of the message is wrong, | ||||
| c – the criteria for the request StartDiagnosticSession are not met. | ||||
| Byte # | Parameter Name | Hex Value | Mnemonic | |
|---|---|---|---|---|
| #1 | Format byte — physical addressing | 80 | FMT | |
| #2 | Target address byte | tt | TGT | |
| #3 | Source address byte | EE | SRC | |
| #4 | Additional length byte | 03 | LEN | |
| #5 | Negative Response Service Id | 7F | NR | |
| #6 | StartDiagnosticSession Request Service Id | 10 | STDS | |
| #7 | ResponseCode = | [subFunctionNotSupporteda | 12 | RC_SFNS |
| incorrectMessageLengthb | 13 | RC_IML | ||
| conditionsNotCorrectc | 22 | RC_CNC | ||
| #8 | Checksum | 00-FF | CS | |
5.1.3 Parameter definition U.K.
CPR_029The parameter diagnosticSession (DS_) is used by the StartDiagnosticSession service to select the specific behaviour of the server(s). The following diagnostic sessions are specified in this document:U.K.
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