Open-loop control system in the open-loop control system, the system output only by the control input, the control precision and interference suppression characteristics than the poor. Open-loop control systems, industrial cats, based on chronological logic control is called the sequential control system; the sequence control means, detection elements, actuators and controlled industrial objects formed. Mainly used to control and robotic and automatic production line machinery, chemicals, material handling and transportation process. Closed-loop control system closed loop control system is built on the basis of the principle of feedback, Henan industrial cats, use the output of the deviation with expectations to control the system, where the selling industrial cat, get better control performance. Closed loop control system, also known as a feedback control system. A given signal classification, automatic control system can be divided into constant control system, servo control systems and process control systems. Constant setpoint change control system requires a certain amount of system output accuracy close to the system given desired value. As the production process of temperature, pressure, flow, liquid level, motor speed and other automatic control system belongs to the permanent value of the system. Servo control system setpoint by an unknown function of time is required to follow the change in the output setpoint. If with satellite radar antenna system. Process control system for a given value by a certain function of time. Such as program-controlled machine tools. IPC motherboard typical environment, as; Operating temperature: -40 degrees range up to 85 degrees Humidity: range up to 0 to 95% non-condensing environment Dust: metal dust, cat Henan industrial prices, ordinary dust electromagnetic radiation: strong electromagnetic interference environment, radiation control for a long time to work itself: under permanent power over the life of these environments generally are not competent commercial board. Main applications Main applications: industrial equipment, GPS navigation, sewage-line monitoring, air-line monitoring, instrumentation, professional equipment control, military, government, telecommunications, banking, electricity, car LCD monitor, video doorbells, portable DVD LCD TV, environmental protection equipment and other industrial cat wholesale, learning Connaught Electrical and Mechanical, industrial cats from Henan learning Connaught Electrical and Mechanical Equipment Co., Henan Xi Connaught Electrical Equipment Co. (www.hnxinuo.com) located in the south China city of Zhengzhou Area 6B 6B-3-342. Scraps and development in the wave of market economy, the current study Connaught Electrical and Mechanical has a high profile in the electronics, electrical products processing, enjoys a good reputation. Xi Connaught Electrical and Mechanical made whole network business alliance certification, marking our service and management level has reached a new height. Xi Connaught Electrical and Mechanical staff is willing to joint development with all people a better future.