Decentralized with virtual device control system

The CX8093 of Beckhoff embedded PC provides a Profinet- RT, designed as 2 port switch for the realization of a wiring 'Daisy-Chain'. A special feature is the function of a virtual device, through which you can double the size of the process data or connect a second controller.

Thanks to the optional virtual device interface (slave), the embedded PC CX8093 behaves like two Profinet devices. Also double the maximum number of input/output data, which in the case of Profinet is approximately 1000 bytes can be processed in this way. I.e., that the CX8093 can process twice as Profinet process data. Sets the name of the network of 'both' devices or via address switch or via the TwinCAT System Manager. The IP configuration is assigned by the Profinet controller.

Another advantage of the virtual device consists in the communication with a second controller Profinet, what increases of form very simple the availability of the system. On the one hand, the CX8093 like local controller can realizar the comprobación of plausibilidad of the two master signals entrantes and supervise in this way, for example, the function of the wiring. On the other hand it can recognise the failure of a teacher and react appropriately through the master second.

The PC embebido CX8093, with a size of so only 65 x 100 x 80 mm, has of the operating system Windows CE 6.0, a CPU ARM9 of 400 MHz, a RAM of 64 Mbytes, as well as of a card MicroSD, that

Can expand until 4 Gbytes. In addition to the terminal of bus, also can add directly the terminal EtherCAT. The CX8093 recognises automatically in the phase of start which system of I/Or is connected. Another peculiarity is a SAI capacitivo of 1 second, to be able to save persistent data in case of failure in the tension of feeding. The controller program by means of the software of automation TwinCAT PLC. The series CX80xx also is available with other bus systems, like Ethernet, Profibus, BACnet/IP, CANopen or OPC UA.