Today, let’s discuss an important communication method in the field of industrial automation – Profibus FMS. Although this technology sounds very professional, it is not difficult to understand; it is like a “WeChat group” in a factory, allowing various devices to freely exchange information. What is Profibus FMS? Profibus FMS (Fieldbus Message Specification) is an … Read more
Industrial 4.0 Bus – Profibus What is Profibus? [PROFIBUS] PROFIBUS is a fieldbus standard used in automation technology, promoted in 1987 by Siemens and fourteen other companies along with five research institutes. PROFIBUS stands for PROcess FIeld BUS. PROFIBUS and PROFINET, which is used in industrial Ethernet, are two different communication protocols. PROFIBUS is an … Read more
From “Old Antique” to Intelligent System: A Record of the Transformation of the S7-400 Rolling Mill Control System in the Metallurgical Industry Do you remember the urgent call I received three years ago? “Engineer Li, the No. 3 rolling mill has stopped again, the old system just can’t hold up anymore!” At that time, I … Read more
PROFIBUS: Siemens PLC Distributed Control System Architecture for Building Scalable Automation Platforms unsetunsetIntroductionunsetunset In the field of industrial automation, an efficient and reliable communication network is the foundation for building intelligent production systems. PROFIBUS, as a standard fieldbus protocol launched by Siemens, has become an important link connecting various devices and control systems. This article … Read more
1. Introduction to PROFINET and PROFIBUS PROFINET and PROFIBUS are two fieldbuses launched by the PNO organization, first implemented by Siemens. The two are not comparable; PROFINET is based on industrial Ethernet, while PROFIBUS is based on RS485 serial bus. Due to the different media, the protocols of the two are completely different and have … Read more
Follow us | Discover more exciting content Alright, I will write this technical article about PLC communication protocols as “Pig Brother”. Hello everyone, today we will talk about the “nervous system” of industrial automation – PLC communication protocols. In the industrial field, data transmission between devices is as important as the human nervous system. This … Read more
Today, I would like to share the Profibus PA bus technology that is frequently used in the field of chemical automation. This is based on my experience during a DCS renovation project at a chemical plant, and I believe it will be helpful for those engaged in process automation. What is Profibus PA To understand … Read more
When transmitting voltage signals over an electrical network, if the impedance at the end of the transmission line suddenly becomes infinite, the voltage signal will cause reflections at that point. The reflected signal superimposes on the normal signal, affecting communication. To eliminate such reflections, a terminal resistor that matches the characteristic impedance of the cable … Read more
In the electric control system of oil drilling rigs, PROFIBUS serves as an advanced industrial communication protocol, providing a stable and reliable communication platform for the automation control of drilling rigs. PROFIBUS has been widely used in electric drive systems due to its mature technology, high reliability, and modular functionality. It can connect various sensors, … Read more
Communication Between S7-300/400 and SINAMICS S120 via DP Bus 1. Overview of DP Bus Communication Functionality S7-300/400 can communicate with SINAMICS S120 via DP bus for both periodic and non-periodic data communication. Using standard S7 function blocks SFC14/SFC15, the S7-300/400 PLC can send Control Word 1 (CTW1) and Main Set Value (NSETP_B) to the drive … Read more