Control device identification information or an identifier identifying the type of the corresponding control device is stored in a first and in a second control device. Version information identifying the sequence control of the corresponding control device, such as a version number, is stored in the...http://www.google.com.hk/patents/US7447813?utm_source=gb-gplus-share專利 US7447813 - Method for identifying incompatibilities in a bus system comprising several control devices
