A controller refers to a master device that changes the wiring of the main circuit or control circuit in a predetermined order and changes the resistance value in the circuit to control the start, speed regulation, braking, and reverse of the electric motor. It is composed of a program counter, instruction register, instruction decoder, timing generator, and operation controller. It is the "decision-making body" that issues commands, that is, completes the coordination and command of the entire computer system's operations.

Controller classification

The controller is divided into a combination logic controller and a microprogram controller, each with its strengths and weaknesses. The design of a combined logic controller is cumbersome and has a complex structure. Once the design is completed, it cannot be modified or expanded, but its speed is fast. The design of a microprogram controller is convenient, with a simple structure and easy modification or expansion. To modify the function of a machine instruction, only the corresponding microprogram needs to be reprogrammed; To add a machine instruction, simply add a microprogram to the control memory, but it is done by executing a microprogram. The specific comparison is as follows: a combination logic controller, also known as a hardwired controller, is composed of logical circuits and relies entirely on hardware to achieve the function of instructions.

Working principle of the controller

Electromagnetic suction cup controller: The AC voltage of 380V is reduced by a transformer, rectified by a rectifier to 110V DC, and then enters the suction cup through a control device. At this time, the suction cup is magnetized, and a reverse voltage circuit is connected during demagnetization, achieving the demagnetization function of the controller.

Access control controller: The access control controller operates in two modes. One is the inspection mode, and the other is the recognition mode. In patrol mode, the controller continuously sends query codes to the card reader and receives response commands from the card reader. This mode will continue until the card reader senses the card. When the card reader senses the card, it responds differently to the controller's inspection command. In this reply command, the card reader transmits the read sensing card internal code data to the access control controller, causing the access control controller to enter recognition mode. In the recognition mode of the access control controller, the access control controller analyzes the internal code of the sensing card, compares it with the card data stored in the device, and implements subsequent actions. After the access control controller completes the action of receiving data, it will send a command to reply to the card reader, restoring the card reader to its state. At the same time, the access control controller will return to patrol mode.

Suzhou Ruisman Machinery Co., Ltd. guarantees quality, and the controller produced refers to the master device that changes the wiring of the main circuit or control circuit in a predetermined order and changes the resistance value in the circuit to control the start, speed regulation, braking, and reverse of the motor. It is composed of a program counter, instruction register, instruction decoder, timing generator, and operation controller. It is the "decision-making body" that issues commands, that is, completes coordination and command of the entire computer system.

We are dedicated to providing you with the best products and services.