SU1629909A1 - Multifunction logic module - Google Patents

Abstract

This invention relates to automation and computing. The purpose of the invention is to simplify the configuration and expansion of the field of application when implementing logical functions AND and OR n variables (n 2b + + 1, where b 1, 2, 3, ...). The module contains the key elements of t-lg, which consist of executive and control elements and a group of diodes 4. Achieving this goal is ensured by the fact that the module contains two groups of n-1/2 diodes. 1 ill., 1 tab. i

Description

The invention relates to automation and computing and is intended to implement logical functions AND and OR or variables (clause

-2b + 1, b 1, 2, 3, ...).

The purpose of the invention is to simplify the configuration and expansion of the field of application when implementing logical functions AND and OR n variables (

-2b + 1, where b 1, 2, 3, ...).

The drawing shows a diagram of the module when p 5.

The device with p 5 contains five key elements consisting of executive elements 2 2 g, which are made in the form of channels with two-sided conductivity, and control elements 3, -3g-, the first group of diodes 4, 4, the second corpse diodes 4 g., inputs 5-10, inputs-outputs 11.12 ....

The irro (i 1, 2) anode of diode 4 of the first group is connected to the input-output j-ro (j 2, 4) of the element actuator, the cathode of the 1st diode 4 of the first group is connected to the input-output of the kth (k 4, 6 ) of the actuating element, the anode of the 1st diode 4 of the second group - with the input-output (1 1.3) of the additional element, the cathode of the 1st diode 4 of the second group - with the input-output of the th (t 3, 5) an executive element, the anode of the first diode 4 of the second group - with the first input-output 11 modules, the cathode of the last diode 4. the first group with the second external input-output module 12, the module inputs - with external inputs 5-10 module.

The module operates as follows. When a positive potential is applied to the input-output 11 and the negative potential (through the load) to the external input-output 12, all the diodes open. In this case, the following signal paths are possible between inputs-outputs 11 and 12

-12;

 4.2 -2;

12;

 four

12;

12.

Thus, the actuating elements / elements 2 (-2 turn out to be connected in parallel — the function OR five variables is implemented.

When a negative potential is applied (through the load) to the external input-output 11 and the positive potential to the input-output 12, all the diodes are closed and there is only one path between the inputs-outputs

H

.9

one

12

Thus, the actuators .d- are connected in series — the AND function of five variables is implemented.

The module configuration scheme is presented in the table.

50

0

0

five

Thus, in the proposed module, the same scheme implements the AND and OR functions and n variables (n 2b + 1, where b 1, 2, 3, ...), and the implementation of these functions requires only one type of discrete component — multifunctional logic module.

The module is configured by changing the polarity of the supply voltage, and the module has the minimum possible number of external leads (n + 3), equal to their number in any of the non-configurable circuits. The circuit is multifunctional, and there are no redundant inputs or outputs.

If we assume that the diodes introduced into the module are significantly more reliable than key elements 1, which are usually electromagnetic relays (actuator 2 is a contact, and control element 3 is a winding), then the proposed module has another positive property - to test it, only two tests are needed instead of n + 1 tastes of a known module.

The first of the indicated tests Tt 11 ... 1 is applied to the module when

IV

it is configured to implement the function I. In this case, it is determined that there is a failure like the failure of key elements.

Second Test T

J

00 ... 0 served

on the module when it is configured to implement the OR function. It also determines the presence of a failure type of false triggering of key elements.

Claims (1)

Invention Formula Multifunctional logic module containing key elements, each of which contains an actuator, which is made in the form of a channel with two-way conductivity, the first input-output, the actuator of each key element is connected to the second input-output of the actuator of the previous key element, the first and second inputs - the outputs of the executive elements of the first and the last key elements, respectively, are connected to the corresponding inputs-outputs of the module, the first inputs of the control elemen1629909 All key elements are combined and connected to the common module input, the second input of the controlling element of each key element is connected to the corresponding module input, characterized in that, in order to simplify the configuration and expand the scope of application of the AND and OR logic functions and variables (n 2b + 1, where b 1, 2, 3, ...), he additionally n-1 contains two groups of --- diodes 5 in each of them, the anode of the i-th (i  1, 2, ...,) diode of the first group the voltage is connected to the input-output of the 1st (j 2i) actuator, the cathode of the 1st diode of the first group is connected to the input-output of the kth (k 2 (i + 1)) actuator, the anode of the 1st diode of the second group connected to the input-output of the 1st (1 21 - 1) actuator, the cathode of the 1st diode of the second group is connected to the input-output of the t-th (t 21 + 1) actuator, the anode of the first diode of the second group is connected to the first input -the output of the module, the cathode of the last diode of the first group is connected to the second input-, the output of the module.