Integration of CAN buses into existing Ethernet technology
Use as a universal PC CAN interface and for coupling CAN networks via Ethernet
The CAN Ethernet Gateway enables the integration of CAN buses into an existing Ethernet topology. It is therefore suitable both as a universal PC CAN interface and for coupling CAN networks via Ethernet. CAN messages are transmitted directly at layer 2 level and are therefore protocol-independent . This allows the CAN Ethernet gateway to be used for various high-layer protocols, such as CANopen, DeviceNet or SDS. Access via Ethernet is possible via TCP as well as UDP.
The CAN Ethernet Gateway is based on a powerful ARM9 controller, which guarantees a high data throughput even with several simultaneously active CAN interfaces. By using Linux as the operating system, users can run their own programmes in parallel with the gateway application. Sophisticated filter and trigger mechanisms enable user tasks to be called up directly on the gateway as a targeted response to specific events.
Easy-to-configure filters ensure a sensible restriction of the CAN messages to be transmitted. Each CAN message is assigned a time stamp , which ensures time transparency during message transmission. The CAN Ethernet Gateway can manage several Ethernet connections simultaneously , thus enabling the creation of complex network structures.
The device can be configured either via Ethernet or USB.
Gateway mode
Gateway mode allows the device to be used as a universal CAN/Ethernet coupler. Typically, the gateway is used as an external CAN interface on a PC and thus enables simple and flexible access to CAN systems via a LAN or via the Internet. The drivers included in the scope of delivery enable the CAN-Ethernet gateway to be used as a PC interface for all CAN and CANopen software tools distributed by SYSTEC. The driver API, which is documented in detail, also supports the integration of the gateway into your own user applications. Messages are exchanged with the CAN network from the host application via socket-based TCP or UDP communication.
Bridge mode
Bridge mode allows the transparent coupling of CAN networks via LAN or Internet. By filtering messages, the volume of data to be transmitted can be limited and the data exchange between the sub-networks can be specifically influenced. For example, when coupling CANopen networks, it is possible to only exchange PDOs and exclude all other message types from forwarding.
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