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
Search on WeChat Technical Training RS-232, RS-422, and RS-485 are all standards for serial data interfaces; Communication issues are similar to traffic issues, with various situations such as high speed, low speed, congestion, and interruptions. If we compare serial communication to traffic, UART is like a station, and a frame of data is like a … Read more
The RS232 type DB9 interface, which used to be found on older computers, can be connected to modems. In MCU51 microcontroller projects, this UART interface is generally used, with serial port rates of 115200bps, 57600bps, etc. Later, USB to serial converters like PL2302 and FT232 emerged, with rates reaching up to 921600bps, which is considered … Read more
Introduction Previously, we introduced the basic knowledge of I2C and SPI. In this chapter, we will discuss UART (Universal Asynchronous Receiver/Transmitter), which is used for communication between internal and external devices of a computer. Data transmission within a computer is parallel, while data transmission with external devices is often serial. Therefore, a chip is needed … Read more
01 Output Forms of Sensors 1. Digital Output Type Digital output primarily includes three forms: RS232, RS485, and wireless transmission. The specific digital output type is chosen based on the actual communication distance and the complexity of the terrain. RS232 output is generally suitable for short-distance transmission within 15 meters and has weak electromagnetic interference … Read more
Click Tech Training Top, delivering to you daily at 7:30 AM What are RS232, RS485, UART, serial ports, COM ports, USB ports, and TTL? Do you understand their relationships? First, we need to distinguish between timing standards and logic level standards. Timing standards refer to the logical values (0 and 1) corresponding to actual voltage … Read more