Steps for PROFIBUS DP Master-Slave Configuration: – Create a STEP 7 project – Insert the required SIMATIC S7-1200 station – Insert communication modules and other necessary modules in the station – Add the PROFIBUS DP network, assign DP addresses, define operation modes, and DP parameters DP Address Definition DP Master/Slave Mode Selection Maximum Address: Since … Read more
PROFIBUS Transmission Technology (Physical Layer) and DP Communication In the ISO/OSI reference model, the first layer defines the “physical” methods of data transmission. This includes encoding types and the transmission standards used (e.g., RS 485). PROFIBUS provides various transmission technologies for the first layer: RS 485, RS 485-IS, MBP, and fiber optic transmission technology. Traditional … Read more
PROFIBUS Connectors and Termination Resistors The connectors are used to connect the PROFIBUS cable to the PROFIBUS stations (as shown in Figure 1). Figure 1 Use of PROFIBUS Connectors On the PROFIBUS connector, there is an incoming port (In) and an outgoing port (Out), which connect to the previous and next stations respectively. 1. Each … Read more
(1) Overview of PROFIBUS PA Bus PROFIBUS is the abbreviation for “Process FieldBus”, which officially became the international standard for fieldbus in 1989. It currently dominates various automation fields and consists of three parts: PROFIBUS DP PROFIBUS PA PROFIBUS FMS PROFIBUS PA is suitable for process automation design, applying intrinsically safe transmission technology (Manchester coding, … Read more
Profibus Wiring Whether forming an MPI or a PROFIBUS-DP network, the main components used are the same: PROFIBUS cable: There are various cable models, among which the most basic is the PROFIBUS FC (Fast Connect) standard cable (order number 6XV1 830-0EH10). PROFIBUS network connectors: There are also various forms of network connectors, such as different … Read more
☞ This is the 13738th article published by Metal Processing (mw1950pub) Editor’s Note 1 Introduction Profibus-DP network is a widely used fieldbus technology for data communication and control in the automation system monitoring layer and lower layer. It represents the development of automation technology but often experiences communication interruptions during actual operation. If the situation … 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 delving deeper into RS485, you will find that there is indeed a lot of knowledge involved. Therefore, we will choose some common issues in weak current systems … Read more
1. Understanding I2C Communication Many friends often feel confused when developing the IIC communication protocol. On one hand, it’s normal to forget related knowledge if it hasn’t been used for a long time. However, it can be quite troublesome to keep looking at the communication timing diagrams, such as the starting level conditions, stopping level … Read more
485 Communication Automatic Transceiving Circuit – The Most Detailed Explanation in History (Click to read) 5 Methods for Switching RS-485 Direction and Their Advantages and Disadvantages Analysis (ClickRead) [Guide] Hello everyone, I am Yijun. In the previous article, I summarized the industrial HART bus. Today, let’s talk about the RS-485 bus. RS-485 is also a … Read more
Many friends have left messages on the public account backend regarding applications related to RS485. If you delve deeper into RS485, you will find that there is indeed a lot of knowledge involved. Therefore, we will choose some common issues considered in weak current systems for everyone to understand. 1. What is RS485 Bus? In … Read more