SU1201798A1 - Programmed control device - Google Patents

Abstract

A SOFTWARE CONTROL DEVICE containing a pulse generator connected by a KV output to the first input of the first element I connected to the counter input of a pulse counter connected by an output to the input of the program set block associated with the first output of the first sensors of the second element I, the position sensor unit, the control unit , the element is NOT, characterized in that, in order to spread the functional capabilities of the device, the first and second elements EXCLUSIVE OR, the comparison unit, the third and fourth e-elements are introduced into it The And inputs connected by the first inputs respectively to the first outputs of the control unit and to the outputs of the position sensor unit, and the second inputs to the second outputs of the program set block, and the outputs to the first inputs of the comparison unit connected by the second inputs to the third outputs of the program set block, and output - with the first input of the first element EXCLUSIVE OR, and with the first input of the second element EXCLUSIVE OR, connected by the output to the second input of the first element AND, and the second input (O to the second output of the control unit and through the NOT item - to the second input of the second element DELETE-. § Chaida or associated output with the second inputs of the second elements And, with the output of the last second element And connected to the input is reset. laziness pulse counter. from 00

Description

The invention relates to automation and computing and can be used in software systems for controlling machine tools.

The purpose of the invention is to expand the functional capabilities of the device due to the possibility of providing all emergency situations without changing the structure of the device blocks and providing automatic -.

 And manual control. tia is a block diagram. , -m., the predictable device.

The device contains a generator of 1 pulses, the first element AND 2, the counter 3 pulses, block 4 of the program set, the second elements AND 5, the control unit 6, the sensor unit 7, the third elements AND 8, the comparison unit 9, the element NOT 10, the second and first elements EXCLUSIVE OR 11 and 12, the fourth elements And 13. Block 4 of the program set contains a switch 14, block 15 matching, a matrix of 16 storage elements.

The sequence number of the connected column of the matrix 16 corresponds to the state number of the counter 3, which is fed to the input of the switch 14. The matching unit 15 serves to convert the information recorded in the storage elements into standard logic signals. The matrix 13 of the storage elements is made in the form of a dial-up floor with diode plugs, or in the form of a semiconductor memory, for example, with electric burned jumpers. It is most convenient to use semiconductor memory devices, including a switchboard, storage elements and a matching unit, such as К1556ЕЗ, К558РФ1, К573Ф21, etc. as a block 4 of the program set.

The control unit 6 includes manual control equipment of the button 17 and switches 18 for setting the operating mode of the device, starting the automatic cycle, for setting commands to the actuating mechanisms in the manual control mode, and the like. Comparison unit 9 may be implemented on the element PORRAY COMPARISON OF TWO NUMBERS.

Before starting work in block 4 of the set of programs, the program is recorded. th device operation. The program consists of two parts, the first part

2017982

serves for automatic mode and the second part for manual mode.

For automatic mode, the whole J cycle of the device is divided into cycles. By tact is understood the period of operation of the device in which no sensors of the block 7 and no executive mechanism of the control object are switched. Each switch means a transition to a new subsequent one. For each clock cycle, the program determines: which sensor switch J5 of block 7 or the switch of block 6 is switched

The controls set the start of the cycle, which sensors and switches control its proper processing, and what state they should have: on or off.

20

In addition, it is determined which outputs of the output unit 5 should be included in the cycle. All this information is recorded in block 4 sets.

25 programs as follows.

The sequence numbers of the ticks correspond to the sequence numbers of the states of the counter 3 and the column numbers of the storage elements of the matrix 16.

, Q Each row of the matrix 16 corresponds to either a certain output (output block) of the AND 5 elements, or the output of the control unit 6, or the output of the sensor block 7, or also corresponds to the output of the blocks 6 or

 7, but: connected to the second input of the same bit of the comparison unit 9, as the equivalent output connected to the second input of the discharge of the comparison unit 9 through the AND 13 element. Therefore, to turn on the device outputs in the specified clock cycles into the storage elements of the matrix 16 located at the intersection of the columns corresponding to the given bars, and

 the lines corresponding to the given output carry single information, i.e. the information is entered so that when the switch 14 of specified columns is connected to the matching block 15, there will be a single signal at its output. For example, a diode plug is installed, an electrical signal is recorded into a semiconductor memory element, etc. For survey

55 required outputs of the control unit 6 or the sensor unit 7 in the zapom; located at the intersection of the columns corresponding to the given measures and the lines corresponding to the given output, in the same way, also single information is recorded. And the elements of the line corresponding to the given output, but connected with the second input of the comparison block 9, contain information about the required output state: single - output in the cycle is on, zero - off. Information is not inserted into the remaining storage elements, which corresponds to the entry of zero information.

The device works as follows. .

All actuators of the control object are preliminarily reset to start the automatic cycle. The switches of the control unit 6 are brought to the position corresponding to the start of the automatic cycle. In accordance with the information recorded for the initial zero cycle in block 4 of the program set and arriving at the first inputs of the And 8 elements, the signals from the specified outputs only pass through the And 8 elements. The value of each signal is compared by a comparison unit 9 with a programmed value. If all the signals correspond to the programmed ones, then from the output of element 9 a single signal is fed to the first input of the first element, TAKING UP OR I1. The second input of the first element And 2 from the second output of the control unit 6 receives a zero signal, which corresponds to the automatic mode. Therefore, at the output of the first element, the TIE EXTENSIVE OR 11 is a single signal, which arrives at the second input of the element 2 and allows the generator 1 pulse to pass to the counting input of counter 3. Counter 3 changes to state One - the first cycle of the program. In this case, the inputs of block 9 comparison come new information corresponding to the first cycle. Initially, until the actuators of the control object switch the sensor of the block 7 at the beginning of the second cycle, the signals and the inputs of block 9 of the comparison are unequal. At the output of block 9, the signal changes to zero, the EXCLUSIVE SHS to Element I 2 passing through the first element, and prohibits the passage.

The impulse of the generator 1 to the input of the counter 3. At the same time, the zero signal arrives at the first input of the second element TARGET OR 12, its second input signals the control unit 6 passes through the element NOT 10. In this case, the output of the control unit 6 is zero, the signal corresponding to automatic

Q mode is inverted and fed to the second input of the second element. EXCLUSIVE OR 12 as a single. At the output of the EXCLUSIVE SHSH 12 element, there is also a single signal. It passes to the second permitting inputs of the And elements (output block) 5, which include 16 outputs programmed in the memory elements of the matrix, corresponding to

2 first tact.

The actuators of the control object perform the first cycle and switch the sensor of the block 7 at the beginning of the second cycle. The signals at the inputs of comparison unit 9 again correspond to each other. The zero signal at the output of comparison unit 9 changes by one, which through the EXCLUSIVE OR 11 element enters the AND 2 element and permits the passage of generator 1 pulses to the counting input of counter 3. Counter 3 changes to state Two. Information about the new state of the counter 3 comes in block 4 of the program set. The information recorded for the second cycle of the program comes to the inputs of the comparison block 9. The signal at the inputs of block 9 is again not initially matched to each other, the single signal at its output is again changed to zero, which (by the method described above) prevents the passage of pulses. The input of counter 3 and allows the outputs of the AND elements (output block) 5. The actuators of the control object release the second cycle and switch the sensor of the start unit 7

50 of the third measure, etc. by cycle On reaching the last cycle of the automatic cycle, the input of the installation of the counter 3 to the zero state from the code of the last element And 5

55 comes a signal setting

counter 3 to zero state. The device is ready for the beginning of a new AB, tomato cycle. $ in manual control mode each program cycle represents a specific command. In this mode, to the second one, the input of the first element is EXCLUSIVE OR 1 I and to the input of the element NOT 10 a single signal is output from the output of control unit 6. If no command is specified in block 6 of control, then block 9 of the comparison fixes the discrepancy of numbers at the inputs all the time. The zero signal from the block 9 code enters the first inputs of the EXCLUSIVE OR 11 and 12 elements, and since the second input of the EXCLUSIVE OR 12c element of the element 10 output does NOT receive a zero signal, the output of the second element is the ZERO signal. It solves the AND elements more than once (output block 5) to turn on its outputs. At the second input of the first element, the EXCLUSIVE OR 11 is a single signal, therefore the second input of the AND 2 element also receives a single signal. It pulses the generator 1 to the counting input of counter 3, which and continuously changes its state with the frequency determined by generator 1. If the command recorded in the control unit 6 is recorded in the manual control program, the sensors in the unit 7 fix the position of the actuators of the control object allowing the execution of this command, then when the counter reaches 3 the state corresponding to the number of the specified command, the comparison block 9 will fix the correspondence of the signals received to the inputs.The zero signal at the output of the comparison block 9 changes to one. It passes through the EXCLUSIVE OR 12 element and allows switching on the outputs of the AND element (output blocks 5 necessary for executing this command. In addition, a single signal arrives at the first input of the first element EXCLUSIVE OR 11, since its inputs have two single signals, then the output is zero minutes and it prohibits the passage of the pulses through the AND gate 2. When the wrong command execution or cancellation signals via AND gates 13 to the second input unit 9 comparing the two numbers do not match the preprogrammed. Counter 3 starts the clock count again, and the output of the output signals is stopped. Thus, the introduction into the device of the elements AND 8 and 13 allows only the outputs of the control unit 6 of the control unit and the sensor unit 7 required by the work program, and not to take into account the secondary ones. The introduction of comparator block 9 allows you to control the process of program development. And the introduction of the elements EXCLUSIVE OR 11 and 12 allows you to generate either enabling or blocking signals depending on the mode of operation of the device. The proposed device can be used in automatic and manual control modes, which expands its functionality.

Claims (1)

A DEVICE FOR SOFTWARE CONTROL, comprising a pulse generator, connected by an output to the first input of the first AND element, connected by an output to the counting input of a pulse counter, connected by an output to the input of a program set block, connected by the first output to the first inputs of the second ⁷ AND elements, a block of position sensors, a block control element NOT, characterized in that, in order to expand the functionality of the device, the first and second elements EXCLUSIVE OR, a comparison unit, the third and fourth elements are introduced into it And, connected by the first inputs to the first outputs of the control unit and to the outputs of the position sensor unit, and by the second inputs to the second outputs of the program set block, and the outputs to the first inputs of the comparison unit connected by the second inputs to the third outputs of the program set block, and the output - to the first input of the first exclusive-OR gate and to a first input of the second exclusive OR element, connected _on chennogo output to the second input of the first aND gate and to the second input - to the second output of the control unit and through the NOT element - to a oromu exclude entry of the second member. Farther OR associated with the output of the second inputs of the second elements AND, and the output of the last second element AND is connected to the input zeroing of the pulse counter. SU „„ 1201798> 1 ¹