Now, let’s explain the application of MODBUS. Currently, most industrial control communication between the upper computer and the lower computer uses the communication protocol MODBUS. It is easy to imagine the importance of communication between machines. 1. MODBUS System Framework Diagram 2. Application of MODBUS The underlying communication of MODBUS uses RS485 signals connected via … Read more
When it comes to communication, many people find it difficult and feel lost. I had the same feeling when I first encountered communication concepts. I gathered a lot of materials, mostly theoretical, and it always felt like I had no starting point. After finally understanding it, I realized that the main reason for not grasping … Read more
1. Determine the Connection Scheme, as follows: 2. Hardware Wiring The following are the wiring terminals of the touch screen, which has 9 pins, divided into one group of RS232 and another group of RS485. 1) RS232 is used to connect to PLC (COM1) Main Touch Screen Panasonic PLC 2) RS485 is used for connection … Read more
Number of Connections The S7-200 SMART CPU can connect to Siemens HMI devices that support the PPI protocol through the integrated RS485 port or signal board, or connect to Siemens HMI devices that support the S7 protocol through the integrated Ethernet port. When the CPU’s three physical interfaces are connected to Siemens HMI devices (including … Read more
Students often ask questions like when working on a project for their company that requires a touch screen, they want to choose a Weicon touch screen but are unsure which model to select. Here’s a brief response to such queries. In fact, selecting a touch screen should be based on a comprehensive consideration of your … Read more
Siemens All-in-One + TIA Portal + EPLAN Electrical Design Video Recordings for Sale at Low Prices! Chuangkong Education Siemens All-in-One Course Introduction 1. Touch Screen Controls Inverter via PLC 1. Currently, in general situations, controlling an inverter typically requires communication between the PLC and the inverter to read the inverter’s information. The touch screen then … Read more
Search on WeChat Technical Training In most cases, the touchscreen is connected to a PLC, which then connects to the inverter. However, the touchscreen can also connect directly to the inverter without going through the PLC, controlling the inverter’s start, stop, frequency change, etc. Today, we will take the Wecon touchscreen controlling the Mitsubishi D … Read more
In electrical automation projects, RS485 communication is often encountered, and many beginners are not very familiar with it. Today, we will discuss the applications related to RS485, and you will find that there is indeed a lot of knowledge involved. We will choose some common issues that are often considered in engineering for your reference. … Read more
As a seasoned electrical engineer, one should be well-versed in various bus systems. Today, I have compiled relevant materials for everyone! 1. Overview 1. Introduction to IEC61158 IEC61158 is the fieldbus standard from the International Electrotechnical Commission (IEC). Currently, the IEC61158 fieldbus standard has developed a series of standards, with the latest version being IEC61158-6-20 … Read more
Search on WeChat Technical Training In engineering, the RS485 control line is often mentioned. What exactly is it? Today, I will discuss the applications related to RS485. By understanding RS485 in depth, you will find that there is indeed a lot of knowledge within it. We will choose some common issues considered in weak electricity … Read more