SU1257705A1 - Shift register - Google Patents

Abstract

This invention relates to the field of automation. The purpose of the invention is improving reliability and expanding functionality by providing self-monitoring. Each register cell is equipped with one signal receiving control relay, one signal reset monitoring control and one additional double-winding relay with latching signal reception - the first winding terminal of the signal receiving control relay is connected via parallel connected contact terminals of the double-winding relay cell to the positive power rail, and the first the output of the winding of the control relay reset signal through a parallel connected disconnecting contact of the control relay signal reception and its normally open contact connected to the clock oh, while the first outputs of the disconnecting windings of the double-winding relays of each cell are connected via a series-connected disconnecting contact of the coyrol signal to reset their cell signal and closed. The contacts of the control relay for receiving the signal and the control relay for resetting the signal of the subsequent cell are connected to the clock bus, the relay through the serially connected closing contact of the corresponding double-winding relay of the previous cell and the opening contact of the signal reception control relay its cells are connected to the clock bus, and in the first cell to the register inputs, moreover, the second terminals of all the relays of the register are connected to the negative power bus. 1 IL. i (L

Description

The invention relates to automation and can be used when

the construction of automatic devices for various purposes, for example, devices for transmitting information about the validity of parts on metalworking automatic lines,

The aim of the invention is to increase the reliability and expand the functionality of the shift register by providing a self-i-roll.

The drawing shows a circuit diagram of the proposed shift register.

The shift register contains cells 1–3, the first cell consists of two-winding relays 4–5 with latching with contacts 4.1–4.2, 3.1–5.2, respectively, a signal receiving control relay 6 with contacts 6.1–6.2, a reset signal controlling relay 7 with contacts 7.1-7.4, the second cell consists of two-winding relays 8-9 with latching with contacts respectively 8.1-8.2, 9.1-9.2, relay 10 of the signal reception control with contacts 10.110 .4, relay 11 of the alarm reset control with contacts 11.1-11.5, the third cell consists of double-winding relays 12-13 with fixation with contacts respectively 12.1-12.2, 13.1-13.2, relay 14 cont ol reception 14.1-14.4 with contacts, a control relay 15, the reset signal contacts 15.115 .5 bus 16 clock pulses, the positive 17 and negative 18

power bus, input bus 19-20, command bus 21 control reception And tire 22 control reset, output bus 23-24, bus 25 power. As the shift register size increases, the additional cells are identical in execution to the second register cell.

The shift register works as follows

At the beginning of the operation cycle, a voltage is applied to the bus 16 to shift the information recorded in the register cells. In this case, the voltage is first applied to the disconnecting windings of relays 12 and 13 of the third cell, after which relays 12-14 are turned off, t, e, the old information is reset, and relay 15 turns on and becomes self-blocking via its contact 15; 3, opens contact 15.2 and closes the contact

five

15.1, preparing the reset circuit of the relay 8 and 9 of the second cell.

After the closure of contact 14.2, information is recorded in the tre-. the second cell, i.e. switching on relay 12 or 13, depending on whether the LI was closed contact 8.2 or 9.2, this closes one of the contacts 12.1 or 13.1, which turns on the relay 14, and the voltage from the bus 16 will be applied through the contacts 11.2, 14.1 and 15.1 to the breaking windings relays 8 and 9.

After that, the information recorded in the second cell controlled by switching on the relay 11 is similarly reset, then the information is recorded from the first cell to the second, controlled by switching on the relay 10. Next, the information recorded in the first cell controlled by switching on the relay 7 is reset.

If the information shift occurred without failures, then the relay 7, 11 and 15 is closed

5, contacts 7.4, Clause 5 and 15.5, form a command on bus 22, which carries information about the readiness to receive the next bit of information for the first digit of the register. After taking

0 of the next bit of information, the first cell of the register turns on the relay 6. When the voltage is removed from the bus 16, relays 7, 11 and 15 are turned off, contacts 7.3, 11.4, 15.4 are closed and a signal is generated on bus 21, and the next bit of information is received and willingness to shift. When the voltage is applied to the clock bus 16, the cycle is repeated.

five

When a shift register or input clock generators fail, signals on busbars 21 and 22 do not appear, indicating a fault. Ensuring the reset of a regular register cell. Only after a census of information from it into a subsequent cell causes a high reliability of the proposed shift register.

Claims (1)

Invention Formula The shift register containing in each cell a two-winding relay with latching, the first output of the switching winding of the two-winding relay with latching of the first cell is connected to the input bus, positive and negative power bus, clock bus, characterized in that, in order to increase reliability and enhance functionality by providing self-checking, a signal reception control relay, a signal reset control relay and a double-winding relay with latching are additionally inserted in each register cell The first terminal of the winding 10 of the control relay for receiving a signal of each cell is connected via parallel-connected first closing contacts of a double-winding relay with the fixation of this cell with a positive power bus 15, the first in The windings of the control relay for resetting the signal of each cell are connected via parallel connected first disconnecting contact of the control relay for receiving the signal and their own first closing contact with the clock pulse bus; the first terminals of the disconnecting windings of the double-winding relay with each cell fixed, except the last, are connected 25 through serially the first disconnecting contact of the control relay for resetting the signal of the given cell, the first closing contact of the control relay for receiving the signal and the second closing contact of the control relay reset signal followed by the cell with the bus clock pulses, the first vgeody TURNED OFF aspirants two winding coils latching relay last cell combined and connected through a first relay contact razmykayu- conductive reset control sig35 5 10 15 20 25 jq 5 This cell has a clock bus, the first terminals of the coil windings of a double-winding relay with each cell fixed except for the first one are connected via second make contacts of a double-winding relay with cell pre-release fixed and connected to them a second break contact of the given bus cell signal control relay clock pulses, the first output of the switching winding of the additional double-winding relay of the first cell is connected to an additional input width, the second winding leads of all the relays Registers are connected to the negative power bus, a control command receiving ness coupled via series connected normally open contact of the relay control cells receiving the first signal, the second monitoring relay make contacts reception signal subsequent cells razmzhayuschie second. the reset relay control contacts of all cells with the power bus, the reset control command is connected via a serially connected second closing contact of the first cell reset control relay and the third closing contacts of the reset control signal of the subsequent cells of the register to the power bus, and the output bus are connected to the power supply bar through the second closing kb clock cycles of double-winding relays with fixing the last register cell. Editor Y. Sereda Compiled by V. Vyhovsky Tehred I.Popoi Corrector S. Shekmar Order 5031/51 Circulation 543 Subscription VNINPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Project, 4