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Nowadays, the level of industrial automation has become an important symbol to measure the level of modernization. Automation has gradually permeate into production and daily life, such as elevators and central air conditioners that people use everyday.
Due to the need of production and life, the application of Heating Ventilating Air Conditioning System that is necessary infrastructure supporting facilities for large indoor places has been expanded continuously. Heating Ventilating Air Conditioning System or HVAC for short is used to keep a comfortable indoor environment by controlling boiler, refrigerator, water pump, draught fan and air conditioning unit. Cold and heat source refrigeration monitoring is the core of the whole air conditioning system and PID control is an indispensable part of it.
PID control that also known as PID self-tuning is well-known in the automation industry, which is composed of proportional unit P, integral unit I and differential unit D. It is widely used in automation control as its simplicity. For air condition system, selecting proper PID parameters is critical to maintain stable operation of it.
Haiwell PLC is favored by many temperature control engineering projects because of its excellent PID control function. Not only did many companies in China choose Haiwell products, but even HSBC in Paris used Haiwell PLC in its HVAC control system.
The application of Haiwell PLC&HMI in HVAC control system of HSBS in Paris
Haiwell PLC supports the 32-channel increment PID, 32-channel self-tuning PID, 32-channel fuzzy temperature control, it can cooperate with TTC temperature curve control, VC valve control and other instructions to easily realize various complex control requirements. In addition, the special digital temperature and humidity module of DT series that is exclusive to Haiwell PLC can measure the temperature and humidity accurately within 200 meters, which means the temperature and humidity of collection has no error, and the cost is very low. Haiwell DT series is built-in communication port which supports remote function and can be used as remote IO module.
The new generation of Haiwell Ethernet Cloud HMI bring sparkle for projects. This series of HMI support the Haiwell cloud platform and can be accessed and controlled via a cloud or a mobile phone. Even though you leave the project site, you can log in Haiwell could in your mobile phone and monitor the status of your project wherever and whenever. In an abnormal state, it also can send alarm information timely to you via Email, mobile phone APP and SMS so that you don’t need to worry about it!
The development of automation is inseparable from continuous innovation of science and technology. Haiwell technology company will forge ahead to provide better products and services for social continuously !
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