STEVAL-PLC001V1

Evaluation board targets compact programmable logic controller (PLC) applications in the factory automation domain. It features a powerful human machine interface (HMI) thanks to the 3.5” TFT touchscreen mounted on the PCB, which eases interaction with the tool. The board implements a galvanically isolated PLC control unit with robust digital input, digital output modules, expansion connectivity options and interfaces. The control unit consists of a powerful 144-pin STM32F746ZGT7 MCU, which handles the industrial IOs on one side and the TouchGFX display technology on the other side, implementing the ladder logic programming code and several additional options. Highly robust and reliable industrial digital input and output modules are placed symmetrically on the PCB, making the system a 12+12 PLC, that is, a PLC GUI optimized for STM32 microcontrollers, which manages 12 industrial inputs and 12 industrial outputs.

• STM32F746ZGT7 high-performance MCU embedding ARM® 32-bit Cortex®-M7 CPU with FPU
• CLT01-38SQ7 octal high-speed digital input current limiter with SPI interface
• IPS4260L quad low-side intelligent power switch and main supply voltage of 18 - 32V
• 3.5" TFT display with multitouch capability interfaced through digital RGB ports and I²C lines
• STLD40DPUR-based display back-light LED driver with controllable intensity
• Screw connectors for safer power supply and industrial IO connections
• USB connector for alternate 5 V source power supply and Isolated USART port connector
• SWD connector for debugging and programming, debug LEDs, reset button
• Status LEDs for inputs, outputs and various fault conditions
• Protections against surge, EMI and input reverse voltage connection