CiA Updates Specifications

March 29th, 2006

CAN in Automation (CiA) has released updates to CiA 400, the multi-level networking specification and CiA 415, the application profile for road construction machine sensor systems. The documents are available free of charge to CiA members.

CiA-400 specificies the design of CANopen-based systems that use multi-level networks. It is possible to describe systems made by up to 127 CANopen networks. Each network may comprise up to 127 CANopen devices. A CiA-400 gateway can support up to 32 CANopen interfaces. It is possible to forward Service Data Objects (SDO) as well as Emergency messages. The NMT requests and the Heartbeat information are forwarded through the entire system by remote SDO. Process Data Objects (PDO) are limited to the local networks and are not forwarded. However, it is possible to map system variables into the local PDOs and handshake them to the next network level.

The CiA-415 application profile for road construction machines describes the objects for sensors and sensor controllers. This includes sensors for different temperature and position measurements. This second version of the profile has been entirely reviewed and is not compatible to the previous version.

For more information visit the CAN in Automation website.

Entry Filed under: Network Test, Standards