The system’s house for CAN, CANopen and real-time Ethernet automation solutions has adapted a POWERLINK stack to the architecture of STMicroelectronics' STR912FA microcontroller. The microcontroller unit combines a 32 bit ARM9 CPU, 96 kB SRAM, flash storage capacity between 512 kB and 2.1 MB, an Ethernet controller and a real-time clock. The solution ensures response times below 5 µs. Port’s stack and ST’s hardware allow users to implement a POWERLINK connection for their devices which requires few components. If the MCU is equipped with a larger flash memory, users can also implement a multi-protocol design, enabling connections to all software-based protocols such as Ethernet/IP, Modbus TCP or Profinet IO and RT. In order to adapt the solution for CANopen and DeviceNet networks, users merely need to connect a CAN transceiver. Port supports manufacturers with further products which facilitate development.
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