SU938285A1 - Logic device - Google Patents

Description

(S) LOGICAL DEVICE

Claims (2)

The invention relates to automation and computer technology. Logic devices are known that contain a converter, V contains inverter elements AND and OR P. The disadvantages of known devices are low functionality. The closest technical solution to the invention is a logic device containing a converter, the first and second inputs of which are connected respectively to the first and second main input names, and the first and second outputs are connected respectively to the first and second main output buses, as well as the inverter and elements AND and OR 121. The disadvantages of the known device are narrow functionality. The purpose of the invention is to expand the functionality of the logic device. This goal is achieved due to the fact that in a logic device containing a converter, the first and second inputs of which are connected respectively to the first and second main input buses, and the first and second outputs are connected respectively to the first and second main output buses, as well as inverter elements And and OR, the third output of the converter is connected to the first 2 of the first and second elements AND, and the fourth output is connected to the first inputs of the third and fourth elements AND, while the outputs of the first and third elements connected to the inputs of the first element OR, you): one of which is connected to the first additional output bus, and the outputs of the second and fourth elements of AND are connected to the inputs of the second element OR whose output is connected to the second additional output bus, the first inputs of the fifth and sixth elements And are connected to the first additional input bus, and the first inputs of the seventh and eighth elements And are connected to the second additional input bus, while the outputs of the fifth and seventh elements And are connected to the inputs of the third element OR, the output to then connected to the third input of the converter, the fourth input of which is connected to the output of the fourth OR element, whose inputs are connected to the outputs of the sixth and eighth elements I., the control bus is connected to the second inputs of the second, third, third and seventh elements And, and through the second inverter C the inputs of the first, fourth, fifth, and eighth elements I. The drawing shows the functional layout of the logic device. The device contains a converter 1, the first and second inputs of which are connected respectively to the input buses 2 and the first and second outputs are connected respectively to the output buses l and 5, the second output of the converter 1 is connected to the first inputs of the elements 6 and 7, and the fourth output is connected to the first inputs elements And 8 and 9, the outputs of elements And 6 and 7 are connected to the inputs of the element OR 10, the output of which is connected to the output bus 11, and the outputs of the elements And 8 and 9 are connected to the inputs of the element OR 12, the output of which is connected to the output bus 13, the first inputs elements H and 15 are connected to the input bus 16, and the first inputs of the elements 17 and 18 are connected to the input bus 19, the outputs of the elements And k and 17 are connected to the inputs of the ISh 20 element, the output of which is connected to the third input of the converter 1, the fourth input - which is connected to the output of the element OR 21, the inputs of which are connected to the outputs of the elements 15 and 18, the control bus 22 is connected to the second inputs of the elements And 7 8, 15 and 17 and through the inverter 23 with the second inputs of the elements 6,6 I and 18. The operation of the logic device is as follows. Let the logic device be used in control device 9 5. , 4 by two actuators, taking two fixed values: the initial and final, and having sensors of the initial and final positions. The input buses 2 and 3 are supplied with signals from the initial and final position sensors, respectively, of the first-actuator. The converter 1 generates signals on the output buses k and S to control the movement from the initial position to the final position (forward stroke) and from the final position to the initial position (reverse stroke), respectively, of the first actuator. The input buses 16 and 19 are supplied with signals from the initial and final position sensors of the second actuator. From the input bus 16 and 19, the signals arrive at the inputs of the elements And And 17, respectively. The second input of the element And 17 receives a signal from the control bus 22, and to the second input of the element AND 1, the signal from the control bus 22 goes through the inverter 23. The outputs of the elements And and 17 are connected to the inputs of the element OR 20, the output of which is equal to the sum the signal from the end position of the second actuator to the signal from the control bus 22 and the signal from the initial position of the second actuator on the signal inversion from the control bus 22. The signal from the output of the element OR 20 is fed to the third input of the pre Former 1. With input bus 16 and 1, the signals also arrive at the first inputs of the And 15 and 18 elements, respectively. The second input element And 15 receives a signal from the control bus 22, and the second input element And 18 receives a signal from the control bus 22 through the inverter 23. The outputs of the elements 15 and 18 are fed to the inputs of the element OR 21, from the output of which the signal arrives to the input of the converter 1. This signal is equal to the sum of the products from the initial position sensor of the second actuator to the signal from control bus 22 and the signal from the end position sensor of the second actuator to the signal inversion from control bus 22. Signals from the third and fourth outputs of the converter 1 arrive at the first inputs of the elements And 6 and 8, respectively. The second input element And 8 receives a signal from the control bus 22. To the second input element And b, the signal from the control bus 22 goes through the inverter 23. The outputs of the elements And 6 and 8 arrive at the inputs of the element OR 10, from the output of which - it enters the output bus 11. The signals from the third and fourth outputs of the converter 1 are fed to the first inputs of the And 7 and 9 elements, respectively. The second input element And 7 receives a signal from the control bus 22. The second input element And 9 - the signal from the control bus 22 is fed through the inverter 23. The signals from the outputs of the elements 7 and 9 are output to the inputs of the element OR 12, the output of which the signal goes to the output bus 13. Thus, on the output bus 11, a signal appears equal to the sum of the products of the signal from the third output of the converter 1 to the signal inversion from the control bus 22, and the signal from the fourth output of the converter 1 to the signal from the control bus 22. On output bus 13, a signal appears. l equal to the sum of the products of the third output of converter 1 per signal from the control bus 22 and the signal from the fourth output of converter 1 to the signal inversion from the control bus 22. On the output buses 11 and 13, signals are generated to control forward and reverse second actuator. At the same time, the appearance of a signal either on the output bus 11 or on the output bus 13 is a function of the presence of a signal on the control bus 22. Thus, the invention makes it possible to reverse the four-step sequence of operations of two executive mechanisms by changing the logic signal on the control bus that expands the functionality of the logic device. The invention is a logical device containing a converter, the first and second 9 INPUTS of which are connected respectively to the first and second main input buses, and the first and second outputs are connected respectively to the first and second main output buses, as well as the inverter and the elements AND and OR, characterized by that, in order to expand the functionality, the third output of the converter is connected to the first inputs of the first and second elements AND, and the fourth output is connected to the first inputs of the third and fourth elements And, while the outputs of the first and third elements And connected to the inputs of the first element OR, the output of which is connected to the first additional output bus, and the outputs of the second and fourth elements And connected to the inputs of the second element OR, the output of which is connected to the second additional output bus, the first the inputs of the fifth and sixth elements And are connected to the first additional input bus, and the first inputs are seventh. The second and eighth elements AND are connected to the second additional input bus, while the outputs of the fifth and seventh elements AND are connected to the inputs of the third OR element, the output of which is connected to the third input of the converter, the fourth input of which is connected to the output of the fourth OR element, whose inputs are connected to the outputs of the sixth and eighth elements And, the control bus is connected to the second inputs of the second, third, sixth and seventh elements And, and through the inverter to the second inputs of the first, fourth, fifth and eighth elements in I. Sources of information taken into account during the examination 1. USSR Copyright Certificate No. 595859, cl. And 03 K, 07/19/76. 2. Patent of Great Britain No. 1307381 cl. G 3 N, 02.21.73 (PROIL n  " 15 a ; j ft