Arduino OPTA PLC – Sequential Function Chart SFC

Arduino OPTA PLC - Sequential Function Chart SFC

Sequential Function Chart (SFC) is a graphical programming language that can be used in Arduino Opta PLCs.  It can be used to program sequential control systems in industrial automation applications. It is a part of the IEC 61131-3 standard and is commonly used in programmable logic controllers (PLCs) and other industrial control systems. SFC allows … Read more

Arduino OPTA PLC – Structured Text (ST)

Arduino OPTA PLC - Structured Text (ST)

Structured text (ST) programming is a programming language that is part of the IEC standard and is used in the Arduino Opta PLC. This programming language allows you to write code in a structured and organized manner, making it easier to understand and maintain. With structured text programming, you can create complex and sophisticated programs … Read more

Arduino OPTA PLC – Function Block Diagram (FBD)

Arduino OPTA PLC - Function Block Diagram (FBD)

The Arduino Opta IoT PLC offers a convenient way to program it using the Arduino PLC IDE in function block diagram (FBD) format. This is a simple and intuitive method, and it is one of the industrial PLC languages. In addition to FBD, you can program the Opta PLC using any of the five official … Read more

Arduino OPTA PLC – IL First Program

Arduino OPTA PLC - Instruction List (IL) First Program

This article discusses the Arduino PLC IDE in Instruction List (IL) format, an industrial programming language that is simple and intuitive for those familiar with mnemonic program code. The Opta PLC can be programmed using any of the five official languages specified in the IEC standard and sketches written in C++. This article will focus … Read more

XY-MD02 Temp Humidity Serial UART Communication

XY-MD02 Temp Humidity Serial UART Communication

To get started with the XY-MD02 temperature and humidity sensor, we will be using the program PuTTY for serial communication. We will use RS485 serial communication to establish a connection and show how to read the values and parameters of the XY-MD02 sensor effectively. Additionally, we will explore the automatic polling feature, which allows for … Read more

XY-MD02 Sensor Setting – Modbus RTU Network

XY-MD02 Sensor Setting - Modbus RTU Network

The XY-MD02 temperature and humidity sensor uses Modbus RTU for communication. Modbus RTU (serial) works as a master (client) to slave (server) communication protocol. To add this sensor to an existing network as another unit number, you must set it up first. We will be using the Simply Modbus Master software in demo mode to … Read more