CS270133B1 - Connection of control system for control of technological equipment - Google Patents

Abstract

The solution concerns the field of mechanical engineering, specifically the control of technological equipment and provides simpler, faster, more reliable and more efficient connection of the control system. The essence of the solution is that it consists of a central unit, a decoder, input and output units, which are interconnected by a four-wire bidirectional bus, as well as a control unit, keyboard and display, and program memory, interconnected with each other.

Description

CS 270133 81 1

BACKGROUND OF THE INVENTION The present invention relates to the involvement of a control system for controlling technological equipment, a suitable control of technological operations of single-purpose machines which are produced only in a prototype.

So far known wiring for controllers of technological equipment are realized by two spo-sobaml. One way is solid logic, where the desired function is achieved by the appropriate switching of circuit elements of relays, transistors and integrated circuits. A disadvantage of this method is that it is difficult to implement a change in control function, often resulting from the prototype tests and the difficulty of implementing some control devices which require an increased degree of automation of the technological devices. In a second way, the programmable logic that eliminates the drawbacks of solid logic, but brings other drawbacks, such as cost, complexity, and the increased demand for maintenance personnel.

The above mentioned drawbacks are eliminated by the control system for controllers of technological devices, the essence of which is that the unitary unit is connected to the steam! the driver's program, the keyboard and display and decoder decoder circuitry <The outputs of the decoder are connected to select inputs of the input and output units. Centrally, the unit is connected to at least one input unit and at least one output unit by a two-way two-way bus, the central unit being connected to the control unit. The monitored supply voltage is connected to the first input of the control unit, the control unit of the central unit is connected to the second input of the control unit. A failure output of the central unit is connected to the third input of the control unit. The first control unit output is connected to the central unit fault input, while the other control unit output is connected to the output unit blocking inputs.

The main advantages of Rladium's system for controllers of technological devices according to the present invention is that the efficient use of integrated high-integration circuits minimizes the number of integrated circuits and the number of interconnections between them, thereby achieving the benefits of programmable controllers with microprocessors. The simpler structure and the higher the reliability! and lower system cost. Smaller network requirements are required! the interconnections and, in a particular conversion, one-sided and double-sided printed circuit boards without overhangs are sufficient, since a small number of interconnections can be realized by a jumper connection.

In the accompanying drawings, FIG. 1 illustrates the block connection of the entire radial system and FIG. 2 shows the connection of the control unit.

Involvement of the RIA system for controllers of technological devices consists of a central unit 100 to which the steam is connected! the driver program 200. the keyboard and display 400 and the decoder 500 whose outputs 501 to 516 are connected to select inputs of input units 600 and output units 700. The central unit 100 is a four-way bi-directional bus 101 coupled to input units 600 and output units. In order to form a four-wire bi-directional bus 101, the properties of the P2 channel microprocessor 8035 and the 8243 I / O circuit are utilized. and to output a maximum of sixteen outputs from one output unit 700, 701. A control unit 300 is connected to central unit 100. Outputs of follow-up power supplies are connected to input 301 of control unit 300, while input 302 of control unit 300 is coupled to the control output of central unit 100, while input 303 of control unit 300 is: The output 304 of the control unit 300 is connected to the fault input of the central unit 100. The output 305 of the control unit 300 is connected to the blocking inputs of the output units 700.

The monitoring of the process equipment and the operator is ensured by the control unit 300. The monitored voltage is applied to the inputs 301 and the circuit 311. whose output is through the filter 312 connected to the input of the first Sohmitt circuit 314 and its output is connected to the setting input of the first bistable flip-flop £ 15. Input 303 It is connected to the setup

Claims (1)

The input 302 is connected to a monostabil-ηγ flip-flop 31B, the output of which is connected to an adjustment input of the third bistable flip-flop 317. The bistable flip-flops 315, 316, 317 are connected to their output via an output input the reset circuit 322. The outputs of the bistable flip-flops 315, 316, 317 are connected to the inputs of the summation circuit 319, the output of which is connected to the input blocking circuit 320, whose output 305 is connected to the blocking inputs of the output chambers 700 and second to the Schmitt flip-flop. circuit 321, whose output 304 is connected to a fault input of the central unit 100. The operation of the entire control system is controlled by a central unit 100 which, via a four-wire bi-directional bus 101, communicates with input units 600 and output units 700, select units, The control program is stored in the program memory 200. The control program inserts and modifies the circuit to control the display and the display 400.Central unit 100 in conjunction with the control unit 300 tracing disturbances. The presence of selected supply voltages, which are connected via input 301 of the control unit 300, is monitored. Further, they are processed by the circuitry 311, the filter 312, the flip-flop circuit 314, and in the absence of some supply voltage, the first flip-flop 315 is set to a fault condition. The correct operation of the central unit 100 is also controlled, which regularly restores the status of the monostable flip-flop 318 through the control output connected to the input 302 of the control unit 300. · When the central unit 100 malfunction is interrupted, the monostable flip-flop 318 by its output, the flip-flop 317 is reset. The accuracy of the control program is checked after the voltage supply is switched on by comparing the control sum to the value stored in the memory. If it is not disrupted via the fault output of the central unit 10, which is connected to the input 303 of the control unit 300, the second flip-flop 316 sets the fault state. If a flip-flop is set in the fault state, via the add-on member 319, the second Schmitt flip-flop 321, and the output 304, the operation of the central unit 100 is blocked, the outputs of the output units are blocked through the product circuit 319 and the blocking circuit 320. The object of the invention is usable in engineering, mainly in the construction of single-purpose machines, which are often produced only as a prototype. Due to the simple structure of the control system, its production can be directly provided by the manufacturer of the dedicated machine. OBJECT OF THE INVENTION Involvement of a control system for the control of technological equipment, designed mainly to re-design technological operations of single-purpose machines, characterized in that the central unit (100) is connected to the control program (200), circuit for controlling the keyboard and display (400), decoder / 500 / ,. whose outputs (501 / to 516) are connected to input units of input units (600). and output units (700), a four-wire bidirectional bus (101) at least one input unit (600) and at least one output unit (700), a control unit (300), wherein an input / 302 / control unit is connected to the central unit (100) (300), the failure output of the central unit (100) is connected to the input / 303? the control unit (300), the output (304) of the control unit (300) is connected to the fault input of the central unit (100) and the output (305) of the control unit (300) is connected to the blocking inputs of the output units (700/1) of the drawing