Common Communication Interfaces and Protocols of PLCs

Common Communication Interfaces and Protocols of PLCs

Difference Between RS232 and RS485 Interfaces 1. Physical Structure of the Interface 1. RS232 Interface One of the computer communication interfaces, typically the RS-232 interface appears in the form of 9 pins (DB-9) or 25 pins (DB-25). Generally, personal computers have two sets of RS-232 interfaces, referred to as COM1 and COM2. 2. RS485 RS485 … Read more

Understanding RS485 Communication

Understanding RS485 Communication

Before discussing RS485 communication, it is necessary to mention RS232 communication. If you are not familiar with RS232 communication, don’t worry. You have definitely seen and used the RS232 interface (if you don’t believe it, you can check behind your desktop computer at home). In fact, many people use the Siemens PCPPI programming cable to … Read more

Common PLC Interfaces and Communication Protocols Worth Learning

Common PLC Interfaces and Communication Protocols Worth Learning

Point“Jinan CNC Mold Technology Research Institute” focus Industry frontier, mechanical videos, CNC processing technology, 3D printing, industrial robots, productionprocesses, molds, machine tools, and other cutting-edge information are waiting for you here! Today, I will share several common interfaces and communication protocols for Siemens PLC. 1 Difference Between RS232 and RS485 Interfaces 1. Physical Structure of … Read more

Understanding the Functions of Communication Interfaces RS232 and RS485

Understanding the Functions of Communication Interfaces RS232 and RS485

Siemens Comprehensive + TIA Portal + EPLAN Electrical Design Video Recordings Available at Low Package Prices! Chuangkong Education Siemens Comprehensive Class Course Introduction RS232 and RS485 are common interfaces in low-voltage applications. Many friends mention the differences between them, so today let’s learn about them together. 1. Physical Structure of the Interface 1. RS232 Interface: … Read more

How to Improve the Anti-Interference Ability of RS485 Communication?

How to Improve the Anti-Interference Ability of RS485 Communication?

Search on WeChat Technical Training The RS485 bus has advantages such as simple structure, long communication distance, fast communication speed, and low cost. It is widely used in industrial communication, power monitoring, instrumentation, and other industries. Due to the harsh industrial control environment, there is more interference coupling in the communication lines, which affects the … Read more

Comparison of Common RS485 Isolation Communication Solutions

Comparison of Common RS485 Isolation Communication Solutions

RS485 has strong anti-interference capability and low cost, making it widely used in various fields such as industrial smart instruments and communication devices. The RS485 circuit can be divided into non-isolated and isolated types. Among them, the isolated circuit adds isolation performance based on the non-isolated circuit, giving the circuit stronger anti-interference and system stability. … Read more

Differences Between RS232 and RS485 Interfaces

Differences Between RS232 and RS485 Interfaces

Click↑↑Technical Training, follow and pinto subscribe for free long-term 190,000+Industrial control professionals follow this WeChat platform: technical sharing, learning exchange, industrial control videos RS232 and RS485 are common interfaces in low-voltage applications. Many friends mention the differences between them, so today let’s learn about them together. 1. Physical Structure of Interfaces 1. RS232 Interface: One … Read more

Key Points for Siemens Network Wiring

Key Points for Siemens Network Wiring

Click the blue textFollow me! ☀The Jicheng WeChat platform has become an invaluable mentor for industrial control students. Follow Jicheng, and technical improvement is guaranteed! QQ consultation: 4001114100 Source: Jicheng Training Network (Teacher Liang Zhibin) ▏Siemens S7-200 Series 17 1.6.4 Network Wiring   For RS485 networks such as PPI, MPI, and Profibus, it is recommended to use … Read more

Summary of Five Core Communication Methods for Siemens PLC

Summary of Five Core Communication Methods for Siemens PLC

Search on WeChat Technical Training Siemens, as one of the earliest industrial control manufacturers to enter the Chinese market, has maintained a very high market share. Siemens PLCs have excellent quality, and their network stability and openness are favored by industrial control personnel. Moreover, the variety of programming software is convenient to use, making it … Read more

Issues with RS485 Repeaters and Profibus Signal Voltage

Issues with RS485 Repeaters and Profibus Signal Voltage

Search on WeChat Technical Training There have been persistent issues with Profibus communication at a certain brewery. Previously, SIAS and on-site engineers had re-planned the entire Profibus network topology, but there were still instances of DP slave devices dropping out, occurring multiple times in a short period, severely affecting the factory’s normal production. Therefore, the … Read more