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The USB interface “is DNET USB” for DeviceNet-Networks

The interface is DNET USB provides a communication link between a desktop computer or PC notebook and a DeviceNet network.

The interface is bus powered thus not depending on external power supplies.

The interface supports the DeviceNet standard version 2.0. The device comes with a 5-pin connector. The DeviceNet stack works alternatively or in parallel as master (and I/O scanner) and slave. The scanner allows a dynamic change of the slave list, which means while the DeviceNet is working slave devices can be added or deleted. The cyclic time of the scan can be set as required by the system. The "Explicit Messaging" functionality is performed employing asynchronous command and event queues thus any data lengths can be transmitted. For a fast access real-time data are kept in a separate DPRAM. The firmware supports process data exchange via “Poll”, “Bit Strobe” and “Cyclic/Change of State” connections. The proxy functionality of the DeviceNet stack is also provided so multi master access for “Group 2 only” slaves is possible.