isDNet USB

The Interface isDNet USB provides a communication link between a desktop computer or PC notebook and a Device Network. The PC can be connected with the Device Network using the USB plug and and play features. Real-time data of the field devices are available for operational areas, e.g. mobile data aquisition and paramterization. The interface is not depending on external power supplies. The prozessor and its periphery are powered by the USB bus. The transceiver is galvanic decoupled, its supply results from the DeviceNet bus.

Hardware Profile
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 IO Scanner) or Slave. The scanner allows a dynamic change of the slave list, which means while the DeviceNet is working, slave devices can be added to or deletet from the scan list. 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. The firmware supports process data exchange via „Poll“, „Bit Strobe“ and „Cyclic/Change of State“ connections. The Proxy functionality at the Devicenet-Stack is also provided so Mulit Master access for „Group 2 only“ slave is possible.

Software
The installation and configuration of the interface are done easily. With the included driver DLL user-specific applications can be integrated without expenses.The interface supports the operating systems Windows 98, 2000 und XP.

Optionally a DTM is available. It provides the communication between devices on the DeviceNet and their DTMs.