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

Integrating XY-MD02 Sensor Modbus RTU Click PLC

Integrating an XY-MD02 Sensor with Modbus RTU into Click PLC

Using Modbus RTU (RS485), we will connect the XY-MD02 Temperature and Humidity Sensor to the Click PLC. The Click will be the Client (Master), and the Sensor will be the Server (Slave). This is an ideal sensor to place in a panel to ensure that the panel is within a working temperature and humidity range. … Read more

Mastering PLC – What you need to know!

In the current era of automation and digitization, Programmable Logic Controllers (PLCs) have emerged as integral components for varied industries, including manufacturing, construction, and more. Mastering the PLC and what you need to know involves different facets of the PLCs. Understanding their basics to troubleshooting common concerns is crucial in optimizing their efficiency and application. … Read more

Top 7 problems with beginners using ladder logic

Here are the top 7 problems and concepts beginners struggle with using ladder logic (Ladder Diagram). Ladder logic is a programming language used in PLCs, and it is based on the graphical representation of electrical relay logic circuits. Many beginners struggle with ladder logic because it requires a different mindset than traditional programming languages like … Read more