How the system working Use a volumetric tube to calibrate the flowmeter. In order to accurately reflect the repeatability of the meter at each flow point, according to the national standard GB/T13282, the basic volume of the volumetric tube should be selected according to the following principles: In the formula: VQ——basic volume design value (m 3 ); Qmax—&mda...
Software process Practical application After the system was installed and debugged, it was officially put into use in October 1999. It has been running stably for more than two years and has calibrated nearly a hundred flowmeters (times) without any problems in the control system. Practice has proved that the system has a high degree of automation, and all performance indicators fully meet t...
Application of PLC, DCS and FCS in metallurgical process control In metallurgical production, the process control system completes the detection, display, recording, adjustment, control, alarm and other functions of the generated process parameters. play an extremely important role. Its characteristic is to control the real-time production process, the control process is complicated, the process l...
The control scale and complexity of the process control system 1. According to the control scale and complexity of the process control system For different metallurgical production processes, the control scale and complexity of the process control system are different. Usually, DCS is preferred when the process control system is large in scale and high in complexity. Because the system is develope...
Happy Chinese Lunar New Year 2023 Lunar New Year 2023 is the Year of the Rabbit and begins the following day, 22 January 2023. More specifically, it lasts until 9 February 2024. The date is determined by the Chinese lunar calendar, which is based on the cycles of the moon and the sun and is usually 21-51 days later than the Gregorian calendar (which is used internationally). Lunar Ne...
Power supply`s running in PLC module The low-pass filter can absorb most of the " burrs " of the power supply .L1 and L2 in the figure are used to suppress high-frequency differential mode voltage . L1 and L2 are reversely wound on the same magnetic ring with equal length wires , The magnetic flux generated by the power frequency current in the magnetic ring cancels each other, and the m...
Power supply to power the programmable controller In the power system, using 220V DC power supply (battery) to power the programmable controller can significantly reduce the interference from the AC power supply, and can also ensure the normal operation of the programmable controller when the AC power supply disappears. In the power input terminal of some programmable cont...
The difference between the three major control systems of DCS, PLC and FCS We already know that FCS is developed from DCS (Siemens 6ES7322-1HH01-0AA0 SIMATIC S7-300 Digital Output Module) and PLC(Allen Bradley 1785-L60B Enhanced Ethernet Controller). FCS (B&R X20CS1070 Communication Module)not only has the characteristics of DCS and PLC, but also takes a revolutionary st...