1 industrial

The ipc is used as the upper machine position, with MOXA four ports, serial expansion card, 64-in / 64-out optical isolation switch input stolen card and parallel expansion card, which adopts RS232C communication protocol for production process control and production process input.

2 weighing device

By dc power A/D converter, microprocessor, keyboard, display, serial interface, memory, photoelectric isolation control interface.

3 Control execution unit/process input unit

On work station, power distribution ark, industrial control and weighing batching control output signal of the transistor amplifier drive after 24 V intermediate relay, then driven by intermediate relay a variety of load, in addition, various production process signals and alarm after level conversion by industrial PC in the I / 3 board, again by software is analyzed.

4 Operation desk and distribution cabinet

The strong electric control cabinet composed of air switch, contactor, thermal relay and so on can realize the drive and short-circuit protection of various equipment motor operation, motor overload protection, and the operation table has automatic thick action transfer switch.All sorts of function buttons, and switches, as well as various abrupt stop button, the whole of all kinds of buttons, and switches on a process simulation screen, automatic operation of various equipment and production process is controlled by industrial computer to turn a work station art process simulation screen to display the function of the equipment running status, manual operation work station can be used to debug the equipment or hand production.

5 slots

Under the Windows environment, using Delphi preparation, the program consists of production module, parameter setting, formula management, material management, customer management, vehicle management, engineering project management, statistical report management and other modules, easy to operate, powerful functions.

6 lower machine position (weighing and batching machine)

It consists of main program, interrupt service program and other subroutines.Display the main functions of A/O conversion, data processing and control, and receive the weighing value of various materials sent by the industrial control computer in serial. After receiving the start weighing command of the industrial control computer, weigh the ingredients according to the program, and simultaneously send the program process and the net weight of the materials to the industrial control computer to realize weighing the ingredients.



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Post date: 2019/09/06
Post category: News
Application of automatic control technique in concrete mixing plant