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Lenze · I/O system 1000 · Reference Manual · DMS 5.0 EN · 09/2016 · TD17
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5
CANopen communication
5.1
About CANopen
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5
CANopen communication
5.1
About CANopen
The I/O system supports the communication module CANopen.
The CANopen protocol is a standardised layer7 protocol for the CAN bus. This layer is based on the
CAN Application Layer (CAL) which was developed as a universal protocol.
However, as the practice shows, applications with CAL were too complex for the users. CANopen
provides a uniform and simple structure for connecting the CAN devices of the various
manufacturers.
5.1.1
Structure of the CAN data telegram
[5-1]
Basic structure of the CAN telegram
Only the identifier and the user data are relevant to the user. All other data of the CAN telegram are
automatically processed by the system.
Tip!
Please visit the homepage of the CAN user organisation CiA (CAN in automation) for further
information: