Difference Between Profibus-DP Bus and Profibus-PA Bus

PROFBUS is an international open fieldbus standard for high-speed and time-critical data transmission as well as for complex communication on a large scale. PROFBUS-DP is a communication protocol that is optimized for high-speed transmission of u

The Application and Prospect of Fieldbus Control System in thermal Power Plant

In the 1980s, DCS (Digital Decentralized Control System) started to enter the field of power station automation control. Because of its positive effects in terms of safety production and economic efficiency, which cannot be compared with any other control system in the past,

The Internet of Things is integrating into the industrial automation system

In the field of industrial automation, with the transfer of applications and services to cloud computing, the main models of data and computing locations have been changed, which has also brought disruptive changes to the field of embedded devices. The proposal of the Internet of Things provides a new breakthrough for the further solution of the integration of two technologies. The development of new manufacturing industry is based on the application of automation technology. The application of the Internet of Things has changed the passive information collection method in traditional automation technology, and realized automation, accuracy, and timeliness

Definition of Fieldbus

According to IEC standards of International Electrotechnical Commission and the definition of Fieldbus Foundation FF (Fieidbus Foundation): Fieldbus is a digital, two-way transmission, multi branch communication network connecting intelligent field devices and automation systems. That is to say, the system based on field bus takes a single decentralized, digital and intelligent measuring and control equipment as the node of the network, and uses the bus to connect to realize the mutual exchange of information, so that different networks and different field devices

Generation of Fieldbus

With the rapid development of information and science and technology, the way of information exchange is changing with each passing day, and is developing towards globalization and digitalization. As the fusion product of information and science and technology development, the automatic control system has also undergone tremendous changes in the past two hundred years since the 19th century. Generally speaking, it can be divided into five generations: (1) Pneumatic signal control system (PCS) Pneumatic signal control system is the first generation control system based on 5-13 psi that appeared in the middle of the 19th century (2)