The CAN (Controller Area Network) is a serial communication protocol, and efficiently supports distributed real-time control with a very high level of security. It is an especially suited for networking "intelligent" devices as well as sensors and actuators within a system or sub-system. In CAN networks, there is no addressing of subscribers or stations in the conventional sense, but instead prioritized messages are transmitted.
ICP DAS provides an open architecture platform for PCM-CM100-D. The PCM-CM100-D represents a very powerful and economic solution of an active CAN board with one CAN channels, covering a wide range of CAN applications. The 16-bit on-board microcontroller allows, among many other features, the filtering, preprocessing, and storage (with timestamp) of CAN messages as well as the real-time transmission of CAN messages. PCM-CM100-D also uses the new Phillips SJA1000T and Transceiver 82C250/251, which provide bus arbitration and error detection with auto correction and re-transmission function. Under the effect of the powerful microcontroller, this card can be made for one CAN controller without losing data, even in systems with a high bus load. Besides, equipped with integrated intelligence functions, the PCM-CM100-D makes it is possible to preprocess CAN data streams, thus relieving the PC of a considerable burden. As a result, real-time requirements on the PC applications are drastically reduced. Due to the state-of-the-art, it can be installed in a PCI-104 bus and supported truly “Plug & play” technology.
In addition, users can develop their own CAN application by using the PCM-CM100-D library. When the PCM-CM100-D is active, the data exchange between users’ application and can bus firmware is performed via the memory mapping method of the PCM-CM100-D.
