CS253157B1 - Programmable device for automatic control of processes - Google Patents

Abstract

A programmable device solves the problem controlling the output actuators according to program that is loaded in memory, time the functions are controlled by the program stored in memory with changeable change options element. A programmable device is created address circuit that it addresses places in the memory in which they are written required functions and duration of these function. Control circuit directed personalized circuit, transcribing memory content to output circuits, transcribing time from memory to adjustable time circuit and enter it information from input circuits. Duration, overwritten time depends on frequency of the clock generator. The memory is controlled by the frequency of this generator with frequency change options adjustable elements. The device can be used in all areas where processes need to be automated

Description

The invention relates to a programmable device for automatic process control.

Previously known automatic process control devices solve this problem either by a fixed wiring by means of a relay, possibly by digital technology or by microprocessor technology. Relay automation devices have the disadvantage of considerable cost, increased power consumption, and have no possibility to change the process algorithm.

Almost the same applies to fixed wiring with digital integrated circuits. Microprocessor-based devices are demanding in terms of program development and do not need large-scale development devices. Every change in time elements is accompanied by a laborious change of the program.

The above-mentioned disadvantages are eliminated by a programmable automatic process control device, which consists in that the control circuit has an output connected both to the first input of the output circuit and to the first input of the adjustable timing circuit and to the first input of the clock generator and the first input the first input of the addressing circuit, the output of which is connected to the memory having its output connected to the second input of the addressing circuit, the second input of the clock generator, and the second input of the adjustable timing circuit, and the second input of the output circuit. The adjustable timing circuit has its output connected to a second input of the control circuit to whose first input the output of the output circuit is connected.

The advantage of the device according to the invention is the saving of energy, labor, cost and further simplicity of control of the process functions, process time functions with the possibility to change the programmed clock frequency by the adjusting element during operation without interfering with the program. The device is simply pro-. grammatical and feasible, does not require a complex development system and lab-intensive equipment.

The attached drawing shows a block diagram of a programmable device for automatic process control.

The programmable device consists of a control circuit 6 having an output connected both to the first input of the output circuit 5, to the first input of the adjustable timing circuit 4, to the first input of the memory 2 and to the first input of the address circuit 1 whose output is connected to the memory 2, which has its output connected to the second input of the address circuit 2, to the second input of the clock generator 2, and to the second input of the adjustable timing circuit 4, and to the second input of the output circuit 5, the output connected to the second input of the control circuit 2, to the first input of which the output of the output circuit 7 is connected.

The function of the programmable device for automatic process control is as follows. After starting the automatic cycle, the control circuit 2 receives a signal to the addressed circuit 2, which sets the start address of the memory 2.

From the output of memory 2, according to the selected instructions, the clock frequency generator 3 is controlled, which is adjusted according to a program with the possibility of additional fine-tuning by means of an adjusting element. An adjustable timing circuit 1 is also set from memory 2, which is then controlled by a programmed clock generator 2 and provides the control circuit 6 with information about the end of a certain process function.

After executing the instruction, the addressed circuit 2 is reset to the address specified by the control circuit 6. The output circuit 2 provides control and is controlled by the memory output 2 and the control circuit 6. The input circuit 2 provides interruption or process status information to the control circuit 6 that controlled operation of clock generator 2, memory 2 and adjustable timer 4.

The invention can be used wherever there is a need for economical, cheap and programmable control system for linear control of technological processes, machines, robots, it is suitable for control of automatic washing machines, tonsils, medical sterilizers as a computer simulator for recording any biological signals or data on tape recorder, etc.

Claims (1)

SUBJECT OF THE INVENTION Programmable device for automatic process control, characterized in that the control circuit (6) has an output connected both to the first input of the output circuit (5) and to the first input of the adjustable timing circuit (4) and to the first input of the clock generator (3) frequency, and firstly to the first memory input (2) and firstly to the addressed circuit (1), the output of which is connected to a memory (2), which has its output connected to the second address circuit input (1), and further to the second input of the clock generator (3), to the second input of the adjustable timing circuit (4) and to the second input of the output circuit (5), the adjustable timing circuit (4) having its output connected to the second input of the control circuit ( 6) to whose first input the output circuit output (7) is connected.