#modbus #scada #flprog #esp32 #embedded #programming #rs485
Industrial data exchange between field devices can be achieved with the Modbus communication protocol. The Modbus coils, discrete inputs, input registers and holding registers were programmed into the ESP32 using FLProg. The Modbus RTU connection was established between the ESP32 and FLProg SCADA on a computer using the TTL-to-RS485 converter and the USB-to-RS485 converter modules. The programming demonstration circuit uses the ESP32 NodeMCU, LEDs, a push-button switch, a potentiometer, an I2C LCD, a TTL-to-RS485 converter, and a USB-to-RS485 converter module.
Modbus Protocol 0:23
Circuit Connection 2:40
Modbus Coil & Discrete Input Read 3:54
FLProg SCADA 5:20
Modbus Coil Write 7:28
Modbus Input Register 8:51
Counter Holding Registers 10:17
FLProg is a visual or graphical programming language that uses PLC's Function Block Diagram or Ladder Diagram for programming Arduino Uno, Micro, Nano, Mega Leonardo, ESP8266, EP32, Intel Galileo and lots more.
FLProg Download: flprog.ru/en/
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1. NodeMCU ESP32S
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2. ESP32 Breakout Board
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3. Vertical Round Micro Push Button Switch
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4. LED
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5. Resistors
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6. Potentiometer
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7. Breadboard
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8. Jumper Wire
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9. I2C Liquid Crystal Display
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10. TTL to RS485 485 Converter Module
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11. Industrial USB To RS485 Converter Module
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25 фев 2023