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Application of Oscilloscope in Industrial Robot
At present, industrial robots are widely used in other industries besides automobile industry and electrical and electronic industry The rapid development of robots has brought great impact on manufacturing enterprises. First, robots can improve production efficiency and product quality. The robo...Read more -
Four major trends in the development of DCS control system technology in the future
DCS system is a major automatic control system besides PLC. It is widely used in chemical industry, thermal power and other fields. However, the demand for automation technology in production has been further improved. The traditional DCS system can no longer meet the needs and needs to be upgrad...Read more -
ABB 800xA extends automation to help medical nutrition production
In 2005, Nutricia replaced the control system of production plants in Zoetermeer region of the Netherlands with the system 800xA – ABB’s “flagship” automatic control system for the process industry. Through close cooperation, all parties involved in this project finally realized...Read more -
Program structure and characteristics of several common PLC of Siemens
1. Program structure of some foreign small PLCs The user program of these PLCs consists of main program, subprogram and interrupt program. In each scan cycle, the CPU calls the main program once. The main program can call the subprogram, and the small control system can only have the main program...Read more -
How to solve the problem that the temperature controller and PLC cannot communicate?
The following two parts are mainly checked: ① Temperature controller side: A. Whether the communication wiring is correct. It is recommended to use shielded twisted pair for the communication line; Refer to the figure below for RS232 wiring: B. Check whether the communication writing in the adjus...Read more -
How to learn DCS control system
With the development of automation technology, the original PLC controller can no longer meet the requirements of some large projects. In this case, the DCS control system came into being. Dcs control system, also known as distributed control system, is a new type of computer control system relat...Read more -
Application of Rockwell PLC in the control system of ten-story elevator
Since American Otis Elevator Company launched the world’s first motor-driven elevator in 1889, the elevator has gone through the process of drum drive and traction drive in driving mode, and gradually formed two different driving modes of DC motor drive and AC motor drive. Nowadays, elevato...Read more -
ABB Freelance 800F distributed control system communication motor
The Freelance 800F system connects the process station, operator station and engineer station in the system through the system bus. The system bus fully complies with DIN/ISO 8802, Part 3 (IEEE802.3) Ethernet standard, and can use twisted pair, optical fiber or coaxial cable. The system bus can a...Read more -
Siemens Water Solutions
Water is the most important commodity, and it is also a resource that will be threatened (almost everywhere) because of overuse and environmental pollution. Therefore, the stable supply of economic and high-quality drinking water and the smooth progress of wastewater treatment should not be taken...Read more -
PCS7 based control system of three wastes boiler in chemical plant
PCS7 is a new generation of process control system based on modular field bus. It combines the advantages of traditional DCS and PLC control systems and organically combines the functions of both. Because PCS7 eliminates the boundary between DCS and PLC systems, it truly realizes the integration ...Read more -
Perfect integration of Siemens DCS and SIS
Integration requirements of DCS and SIS With the continuous development of China’s oil industry, safety in production and energy conservation and environmental protection are receiving increasing attention. Fushun Petrochemical’s “ten million tons of oil refining and one million...Read more -
Difference between PLC and SCM
PLC is the abbreviation of Programmable Logic Controller. It is a digital arithmetic controller with microprocessor for automatic control. It can load control instructions into memory at any time for storage and execution. PLC is a computer dedicated to industrial control. Its hardware structure ...Read more -
Why is PLC so flat?
With the continuous reduction of PLC price and the continuous expansion of user demand, more and more small and medium-sized equipment begin to use PLC for control, and the application of PLC in China is growing rapidly. With the rapid development of China’s economy and the continuous impro...Read more -
Analysis of common problems in PLC automatic control system
In the actual debugging process, sometimes such a situation occurs. A software system can fully meet the technological requirements of mechanical equipment theoretically, but can not be put into normal operation in any case during the operation process. In the system debugging process, in additio...Read more -
What are the causes of PLC crash
There are many reasons that cause the PLC to crash. Software and hardware errors may cause the PLC to crash. This article will introduce the hardware and software. 1. Hardware (1) When I/O is powered on, PLC automatically detects I/O error and enters STOP mode. (2) The I/O is damaged, and the ...Read more -
Problems to be noticed in PLC installation
PLC is applicable to most industrial sites, but it still has certain requirements for use occasions, ambient temperature, etc. Controlling the working environment of PLC can effectively improve its working efficiency and life. 1. When installing PLC, avoid the following places: (1) The ambient te...Read more -
Connection between DCS system and PLC system
PLC control and DCS control system are not a logical concept. PLC is named after its function and DCS is named after its architecture. In principle, PLC can form DCS. Of course, the performance difference between the two still exists, depending on the product and needs. Differences between DCS ...Read more -
Introduction to main performance indicators of PLC
1. Storage capacity Storage capacity refers to the capacity of user program memory. The capacity of user program memory is large, and complex programs can be compiled. Generally speaking, the user memory capacity of small PLC is thousands of words, while that of mainframe is tens of thousands of ...Read more -
Comparison between Siemens PLC and Panasonic PLC
1、 Siemens PLC programming software and program structure (1) Siemens PLC programming software Siemens provides many kinds of programming software for SIMATIC series PLC, mainly STEPMICRO/DOS and STEPMICRO/WIN; STEP; Standard software package STEP7. The programming languages of S7 series PLC a...Read more -
What are the main interference sources in Siemens PLC system
(1) Radiated interference from space Radiated electromagnetic field (EMI) in space is mainly generated by power network, transient process of electrical equipment, lightning, radio broadcasting, television, radar, high-frequency induction heating equipment, etc. It is usually called radiated inte...Read more