To address this problem, CiA(CAN in Automation) was established to design the application layer protocol-CANopen, which has been handed to Europe Standard Commitee as a kind of new industrial field bus standard.

• 为此目的,在德国成立了“自动化CAN用户和制定商协会”(CiA,CAN in Automation),开始着手制定自动化CAN的应用层协议CANopen。 目前CANopen协议已经被提交欧洲标准委员会讨论,作为一种新的工业现场总线标准。