Can-Network (Controller Area Network): Compatibility

The units must "speak" the same language and must be compatible with each other. A standardised communication protocol is used for this.

Signal configuration (sfg) contains the language between the modules. If any module has a signal configuration which does not tally with other modules, this module is unable to communicate with other modules. This means that all modules must have compatible signal configuration. The signal configuration is sometimes changed as new messages are added and old ones are deleted.