17th iCC paper: CANopen FD devices identification via new layer setting services (LSS)
Автор: CAN in Automation
Загружено: 2022-07-14
Просмотров: 495
Описание:
Yao Yao - CAN in Automation
(Download the white paper: https://www.can-cia.org/services/conf...)
Since CAN in Automation (CiA) has published the CiA 1301 – CANopen FD in September 2017, one CiA technical group discusses how CANopen Layer Setting Services (LSS) should be adapted to CANopen FD.
LSS Fastscan service (CiA 305) used in the CANopen for identifying unconfigured LSS slaves is complex and requires up to 128 messages exchanged. Benefited from the larger payload of the CANopen FD, the full 128-bit LSS address can be sent in one request of the new service – LSS switch state selective FD service. This new service is totally different to Fastscan and will be specified in the CiA 1305 document, which is currently under development.
This article introduces the operating principles of the new service, the service and protocol specification, and the operation sequences, as how to identify LSS slaves if LSS addresses are known or unknown.
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