3.OVERVIEW OF SERVICES
3.1. Services available
The following table provides an overview of the services that will be available in the tachograph and are defined in this document.
CPR_004The table indicates the services that are available in an enabled diagnostic session.
The 1st column lists the services that are available.
The 2nd column includes the section number in this appendix where of service is further defined.
The 3rd column assigns the service identifier values for request messages.
The 4th column specifies the services of the ‘StandardDiagnosticSession’ (SD) which must be implemented in each VU.
The 5th column specifies the services of the ‘ECUAdjustmentSession’ (ECUAS) which must be implemented to allow control of the I/O signal line in the front panel calibration connector of the VU.
The 6th column specifies the services of the ‘ECUProgrammingSession’ (ECUPS) which must be implemented to allow for programming of parameters in the VU.
Table 1
Service Identifier value summary table
| ■ This symbol indicates that the service is mandatory in this diagnostic session. No symbol indicates that this service is not allowed in this diagnostic session. | |||||
| Diagnostic Sessions | |||||
|---|---|---|---|---|---|
| Diagnostic Service Name | Section No. | SId Req.Value | SD | ECUAS | ECUPS |
| StartCommunication | 4.1 | 81 | ■ | ■ | ■ |
| StopCommunication | 4.2 | 82 | ■ | ||
| TesterPresent | 4.3 | 3E | ■ | ■ | ■ |
| StartDiagnosticSession | 5.1 | 10 | ■ | ■ | ■ |
| SecurityAccess | 5.2 | 27 | ■ | ■ | ■ |
| ReadDataByIdentifier | 6.1 | 22 | ■ | ■ | ■ |
| WriteDataByIdentifier | 6.2 | 2E | ■ | ||
| InputOutputControlByIdentifier | 7.1 | 2F | ■ | ||
3.2. Response codes
Response codes are defined for each service.