Single Microprocessor Implementation for Safety-Related Networks Using CANopen

In its current usage, CAN, does not have all the requirements necessary for use in safety-related applications. Even after adding CANopen as the higher-layer protocol specific needs were not met. After exploration of these deficiencies, the CANopen Framework for Safety-related applications was created. This framework allows the use of safety-related and non-relevant communication on the same network. The basic idea is to transmit each safety-related message twice using different message identifier. The data is bit-wise inverted as well with a time-out attributes assigned. CANopen can now be used for safety-related applications. If CANopen is the solution, then a one microprocessor can be the single solution for the application within a device.