China wholesale Shantui Dozer Roller – Controller for road roller parts – CCMIC

Controller

Because there are many kinds of spare parts, we can’t display them all on the website. Please feel free to contact us for specific ones.

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Packing

Carton Boxes, or according to clients’ request.

description

It refers to the master device that changes the wiring of the main circuit or the control circuit and changes the resistance value in the circuit according to a predetermined sequence to control the start, speed, brake and reverse of the motor. It is composed of program counter, instruction register, instruction decoder, timing generator and operation controller. It is the “decision-making body” that issues orders, that is, it completes the coordination and command of the operation of the entire computer system.
Electromagnetic chuck controller: After the AC voltage of 380V is reduced by the transformer, it is rectified by the rectifier to become 110V DC and then enters the chuck through the control device. At this time, the chuck is magnetized, and when demagnetizing, it enters the reverse voltage circuit, and the controller achieves the demagnetization function.
Access controller: The access controller works in two modes. One is the inspection mode, and the other is the recognition mode. In the inspection mode, the controller continuously sends query codes to the card reader and receives reply commands from the card reader. This mode will be maintained until the card reader senses the card. When the card reader senses the card, the card reader generates different responses to the controller’s inspection command. In this response command, the card reader transmits the read sensor card internal code data to the access control controller to make the access control The controller enters the recognition mode. In the recognition mode of the access controller, the access controller analyzes the internal code of the proximity 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, so that the card reader will restore the state, and at the same time, the access controller will return to the inspection mode.
1. Control Memory is used to store the microprograms corresponding to each machine instruction. The decoder is used to form the entry address of the microprogram corresponding to the machine instruction. When the micro-instructions of the micro-program corresponding to a machine instruction are fetched one by one and sent to the micro-instruction register, the micro-operation command is also issued according to the design in advance, thus completing the function of a machine instruction. This is true for every machine instruction.
2. The width of the microinstruction directly determines the width of the microprogram controller. In order to simplify the control memory, some measures can be taken to shorten the width of the microinstructions. Such as the use of field decoding method one-level segmented decoding. Obviously, the control field of the microinstruction will be greatly shortened. , Some micro-operation commands to be generated at the same time cannot be arranged in the same field. In order to further shorten the control field, the field decoding can also be designed into two or more levels.

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