Micro programmable logic controllers enable IIoT applications

Mouser now stocks the Opta micro PLC from Arduino. The easy-to-use controller enables designers to scale industrial automation projects employing the open Arduino ecosystem. The PLC supports real-time control, monitoring, and predictive maintenance, making it an excellent option for IIoT and building automation applications.

The PLC is based on the STM32H747XI dual-core microcontroller from STMicroelectronics, which comprises a single high-performance Arm Cortex-M7 core running at up to 480MHz and a lower-power Cortex-M4 core running at up to 240MHz alongside a shared FPU.

The Opta is offered in three versions, comprising the Opta Lite, which includes Ethernet connectivity and USB Type-C for programming; the Opta RS485, which adds RS485 half-duplex support; and the Opta WiFi, which includes radios for Wi-Fi and BLE connectivity.

All models support OTA updates, provide a dedicated secure element for cryptographic assurances and relays for switching four loads up to 2.3kW each. The highly versatile controllers also include optional support for standard IEC 61131-3 PLC languages and fieldbus integration via Modbus TCP and Modbus RTU.