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
Click↑↑Technical Training, follow and pin it to subscribe for free long-term 190,000+ Industrial Control professionals follow this WeChat platform: technical sharing, learning exchange, industrial control videos 1. Requirements Software Step7 V5.2SP1 PLC with Profibus-DP communication port: S7-315 2DP Profibus communication cable (6XV1830-0AH10) Profibus bus connector (6ES7972-0BB10-0XA0, with PG interface; 6ES7972-0BA10-0XA0 without PG interface) 1 MM440 … Read more
Click on the blue textFollow me! ☀The leading brand in automation remote education, the official WeChat platform of Jicheng Training Network! Follow Jicheng, and technical improvement is no problem! Source: Jicheng Training Network (Teacher Liang Zhibin) 1.3.1 PPI Network The PPI protocol is a communication protocol specifically developed for the S7-200. The communication ports (Port0/Port1) … Read more
DF PROFI II is a high-performance PROFIBUS DP/DPV1 interface card that can be used as a DP master or DP slave, capable of being rapidly and flexibly applied in various automation industries. It supports a wide range of applications across different fields. In addition to standard PROFIBUS DP/DPV1 services, it also provides a watchdog function, … Read more
Development of PROFIBUS DP data bus cable WANG Hai-ling1, ZHANG Hong-yan2 (1. Anhui Xinke Cable Group Co., Ltd., Wuwei 238300, China; 2. Anhui Zongheng HI-TECH Cables Co., Ltd., Hefei 230051, China) [Abstract]: With the continuous deepening and development of the domestic industrialization process, the demand for industrial automation networks is increasingly extensive. Especially since the … Read more
【Introduction】 A PROFIBUS DP slave with only one PROFIBUS DP interface can be connected to a redundant CPU via PROFINET or PROFIBUS. Below, we introduce two methods to achieve this using IE/PB LINK HA and Y LINK. (1) Recommended PROFINET Connection IE/PB LINK HA is a gateway between Industrial Ethernet and PROFIBUS DP. It enables … Read more
Siemens Communication 1. Generally speaking, the communication network of an enterprise can be divided into three levels: enterprise level, workshop level, and site level. Enterprise Level: Top-level management of the enterprise; IT technology applications are very extensive, such as the INTERNET. Workshop Level: Solving communication between different process segments that need to coordinate work within … Read more