SU1432578A1 - Subscriber-calling device - Google Patents

Abstract

The invention relates to the transfer of information in the automated process control systems of industrial enterprises. The purpose of the invention is to increase the reliability of the call to the sensors and the information content of the device. The sensor call device contains a control point and four sub-devices. Each sub-device contains a group point (GP) and eight controlled points. The device includes four call buses, a lock bus, an alarm bus, four shared buses, and eight tires for each bus. The control point contains eight And elements, eight And elements with inverted inputs, eight flip-flops, sixteen indication elements, sixteen resistors, eight call keys, a call control key, a Reset button, a bus switch, a power supply unit, a GP containing eight selection relays, a switching relay diodes of the first, second and third groups. The controlled point contains seven relays of a call of sensors, diodes of the first and second groups. The device performs remote control of switch-on objects (sensors) with simultaneous control on the elements of indication of the correctness of the call of individual objects. 4 ill., 1 tab. with (L

Description

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The invention relates to data transmission in automated process control systems of industrial enterprises.

The purpose of the invention is to increase the reliability of the call to the sensors and the information content of the device.

FIG. 1 shows a functional diagram of the device call sensors; in fig. 2 - functional diagram of the control point; in fig. 3 - functional group point diagram; in fig. 4 - functional scheme of the controlled item.

The device for invoking sensors contains item 1 of the control (PU) and four sub-devices 2-5. Each sub-device contains a group point (GP) 6 and eight controlled points (CP) 7–14. The sensor call device includes four tires 15–18 calls, a blocking bus 19, an alarm bus 20, four common buses 21–24 and eight tires 25-32 for each GP.

The control point contains eight elements And 33-40, eight elements And 41-48 with inverse inputs, eight flip-flops 49-56, sixteen elements 57-72 of the display, sixteen resistors 73-88, eight call keys each with its own first 89-96 contacts and the second 97-104 contact groups, the call control key with its contacts: the first 105, the second 106 and the third 107 contact groups, the Reset button with the first 108 and the second 109 contact groups, the common bus switch 110, the power unit 111, four buses 112-115 call the PU, the first and second tires 116 and 117 lock installation bus 118 blocking PU, the first and second tires 1 19 - and 120 call controlled points PU and the first and second tires 121 and 122 call sensors.

The group point contains eight selection relays 123-130 each with their first 131-138 and second 139-146 contacts, switching relays 147 with the first 148, the second 149, the third 150, the fourth 151, the fifth 152, and the sixth 153 contacts, diodes 154- 161 of the first group of diodes, diodes 162-169 of the second group of 55 diode diodes, diodes 170-17 of the third group of diodes, four buses 178-181 of the choice of GP, a bus of 152 self-blocking of the GP,

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the first and second common tires 183 and 18; GP and bus 185 alarm GI.

The monitored item contains seven sensors call relays 186-192, each with its contacts 193-199, diodes of the first 200-206 and second 207-213 diode groups, four buses of the KP sensor calls 214-217, a common bus 218 KP and alarm bus 219.

The table shows the connection of the diodes of the first group to the tires on the gearbox.

The device call sensor works as follows.

On the control panel, in the initial position, all keys must stand in the middle (initial) position, and the switch ON the common tires must be in the zero (initial) position. The switch is set depending on which sub-device implements the required sensor. Tsvc, if the first sub-device calls the required sensor, the switch is set to the first position, as a result of which the common bus 21 is connected. The call key with the number of the called CP is set to the first extreme (left) position. Then, the second extreme (right) position of the key1-: call with the number of the called object (sensor) if it is less than the number of the called KP, and with the number more than one if the number of the object is equal to or greater than the number of this KP. Consequently, any of the call keys in a call cannot be used twice. Then, the call control key is placed in the first extreme (left) position, thereby closing its contact 105 in the bus circuit 119, contact 106 in the bus circuit 120 and contact 107 in the alarm bus circuit. As a result, a negative potential is given to the bus 119, and a positive potential to the bus 120. Through the closed contact of the call key, standing in the first extreme position, the corresponding potential is fed to the call bus to which it is connected. So, when calling the first CP, the first fixed contact of the first group 89 of the first call key is locked — in the bus 119 circuit and the negative potential goes to the bus 112, and from there to the bus 15. Simultaneously from the buses 116 or 117, the corresponding potential through the same contacts The key for the call goes to the lock bus 118, and from there to the bus 19. When the first gearbox 7 is called from the cable, 116 negative potential through the first fixed contact of the second group 97 goes to the lock bus 118, and from it to the bus 19, At the GP 6 with call bus through the corresponding relay contacts 147 p The switching potential is fed to the selection bus, to which the relay coil of the selectable gearbox is connected via the corresponding diode of the first group. It is triggered, closes its contacts in the circuit of the corresponding GP bus and becomes self-locking. When it enters both its inputs, pulses of positive polarity appear, and a negative polarity is output at the output. From the coincidence circuit that has been opened, the pulse arrives at the inlet of the corresponding truer, tilting it to the second position, as a result of which the display element at its output begins to shine, signaling that the command for selecting the gearbox has been executed.

When calling the first KP 7, both inputs of the And 33 element receive a denial

by cutting its other contacts, connected by pulses, it opens and

one end with a self-blocking bus, and the other through a second group diode with the winding of the same relay, and through another third group diode to the signaling bus 185, which is connected through the fifth 2 o pin 152 of the switching relay 147 to the alarm bus 20. The signal about the selection of the necessary CP is transmitted to PU 1. When calling the first

gives a negative polarity pulse to the input of trigger 49, its overturns. Display element 57 begins to light up, signaling the selection of the first gearbox.

Further on, GP 6 triggers the switching relay 1, opens its contacts 148-152 and closes the contact 153. As a result, the signal

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the corresponding potential appears the same as that on bus 183. At PU 1, the element And the called KP closes, since at its second input the signal from the HF 6 stops. But the display element continues to shine, because the trigger of the called KP did not change its condition

Then the call control key is transferred to the second extreme position,

KP 7 at GP 6 triggers the relay 123 vy-25 with GP 6 ceases, and on the bus 184 boron when a negative potential flows through the bus 15 through the contact 148 to the bus 178, and from it through the diode 154 of the first group to its winding. It closes its contact 139 in the P1INA 25 circuit of its gearbox, becomes self-locking via contact 131 with one output connected to the self-locking bus 182, which receives a negative potential from the PU 1 through the bus

19 through the winding of the relay 147 switching 35 contacts 105-107 are switched, neither by, nor by another output, as a result of which the relay through the diode 162 stops to its winding, and through giving the first call (call KP) and diode 170 - to the bus 185 alarm. Negative potential from the blocking bus via contact 131, diode 170, bus 185 and fifth contact 152 of the switching relay is sent as a signal that the switch select relay 123 is turned on to the bus 20. The signal received from GP 6 to PU 1 triggered by the selected call relay KP via contact 107 key management call is served on the second

40

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The transmission of the second terminal begins (call of the sensor). The potential supply to tires 119 and 120 stops and a negative potential flows through contact 105 to bus 121, and through potential contact 106 to bus 122-- positive potential. Through the closed contacts of the call key of the sensor, standing in the second extreme position, the corresponding potential is fed to the bus to which it is connected. When the first sensor is called at the first CP, this will be the second call key with contacts 90 and 98. In this case, the negative polarity from spikes 121 through the second fixed contacts 90 of the first group goes to the call bus 113, and from it via bus 16 to the first KP. The potential on the blocking buses does not change, since the call key with which the control is chosen is in the previous inputs of the AND 33,35,37 and 39 elements and the 41,43,45 and 47 elements with inverse inputs, the first inputs of which are connected respectively by the buses 112 -115. Any of the first four elements of And 33,35,37 and 39, when applied to both of its inputs of negative polarity pulses, opens, at the output also a negative polarity pulse. Any of the other four elements And 41, 43, 45 and A7 with the inverse push input a negative polarity pulse to the input of the trigger 49, knocking it over. The element 57 of the display, indicating the selection of the first gearbox, begins to light.

Further on, GP 6 triggers the switching relay 1 i7, opens its contacts 148-152 and closes the contact 153. As a result, the signal

the corresponding potential appears, the same as on bus 183. At PU 1, the element of the called CP closes, since at its second input the signal from the GP 6 stops. But the display element continues to glow as the trigger of the called CP did not change its state.

Then the call control key is transferred to the second extreme position,

with GP 6 ceases, and on bus 184

 contacts 105-107 are switched, resulting in the termination of the first call (call KP) and

 contacts 105-107 are switched, resulting in the termination of the first call (call KP) and

The transmission of the second terminal begins (call of the sensor). The potential supply to tires 119 and 120 stops and a negative potential flows through contact 105 to bus 121, and through potential contact 106 to bus 122-- positive potential. Through the closed contacts of the call key of the sensor, standing in the second extreme position, the corresponding potential is fed to the bus to which it is connected. When the first sensor is called at the first CP, this will be the second call key with contacts 90 and 98. In this case, the negative polarity from spikes 121 through the second fixed contacts 90 of the first group goes to the call bus 113, and from it via bus 16 to the first KP. The potential on the lockout tires does not change, since the call key with which the KP is selected is previously

143

position, and the call key, which calls the sensor of the selected CP, is in the second extreme position and its second fixed contact of the second group is not involved.

On the selected KP, the current from the 15,16, 17 or 18 call tires goes through the corresponding diode of the first group to the winding of the relay of the called sensor, which operates, closes its contacts in the circuit of its sensor and signaling, resulting in the current from this bus through the contacts of the called relay and a diode of the second group is fed to the signaling bus 219, and from there to the bus 20 as a signal that the selected sensor triggers the relay. When the first sensor of the first gearbox is called, the negative polarity current coming from the communication line to the first gearbox is fed to bus 215, and from it through the diode 200 of the first group to the winding of the first relay 186, which operates and closes its contacts in its sensor circuit and pin 193 in the alarm circuit. The negative polarity current from bus 215 through contact 193, diode 207 of the second group and bus 219 is fed through bus 20 (conductor, wire) to PU 1 as a signal to execute the command to turn on the call relay of the first sensor.

At PU 1, the signal about the call of the sensor through the contact 107 of the call control key, which is in the second extreme position, goes to the second inputs of the AND elements 34, 36, 38 and 40 and the And elements 42, 44, 46 and 48 with inverse inputs, the first inputs which are connected respectively with tires 112-115. When the signal arrives, the first sensor is called in the form of a negative polarity current; it cherbs contact 107 to the second inputs (And 34, 36, 38 and 40 elements and And 42,44,46 and 48 elements with inverse inputs. But since the negative potential is applied to the first input of the AND 36 element only, it opens and the display element 66 is triggered. Thus, the display elements 57 and 66 of the selected gearbox and the selected sensor on the control panel respectively simultaneously signal the right sensor call.

After finishing work with the called sensor on PU 1, the call control key, the switch of the general bus 110

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and the used call key is set to the neutral position, and then iia presses the reset button with contacts 108 and 109, as a result of which the trigger of the called object returns to its original position, the supply of current to buses 16, 121 and 122 ceases, and act. At GP 6 and KP 7, the relays are reset. The sensor is disconnected from the communication line. The device returns to its original state and is ready to call another sensor.

Formula

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A sensor call device containing, on the control point, a call control key, first to eighth call keys, first fixed contacts of the first contact groups of the first to fourth call keys and the first fixed contact of the first group of contacts of the call control key, the first fixed contacts of the first contact groups of the fifth - the eighth call key and the first fixed contact of the second group of contacts of the call control key are combined, the second ones are not received. The first pins of the first call key contacts and the second fixed contact of the first group of pins of the call control key are combined, the second fixed contacts of the first contact groups of the fifth to eighth call keys and the second stationary contact of the second group of pins of the call control key are integrated, the moving contacts of the first group are the contacts of the first and fifth call keys are combined and are the first output of the control point, the moving contacts of the first groups

50

The contacts of the second and sixth call keys are combined and are the second input of the control point, the moving contacts of the first contact groups of the third and seventh call keys are combined and are the third output of the control point, the moving contacts of the first contact groups of the fourth and eighth call keys are combined 55 and are the fourth control point output, moving contact The call control key contact group and the first fixed contacts of the second contact group of the first to fourth call key switches are connected and connected to the negative terminal of the power supply unit, the moving contact of the second group of the call control key contacts and the first fixed contacts of the second contact group of the fifth to eighth call keys combined and connected to the positive terminal of the power supply; the moving contacts of the second contact groups of the first to the eighth call keys are combined and in the fifth output of the pack Aux, Reset button, the first output of the first group of outputs is connected to the zero terminal of the power supply unit, the sixth output of the control point, at the first group point of the switching relay, the first to fourth moving contacts of which are the first to fourth inputs of the first group point, respectively, the fifth input the first group point, the first - the fourth selection relay, the first terminals of the windings of which are connected to the first terminals of the first - fourth diodes of the first group, respectively, the first fixed contact

the switching relay is connected to the second ,, „keys to the first - quarters 5 inputs

the output of the first diode and the first output of the fifth diode of the first group, the second fixed contact of the switching relay is connected to the second output of the second diode and the first output of the sixth diode of the first group, the third fixed contact of the switching relay is connected to the second output of the third diode and the first output of the seventh diode of the first group, the fourth fixed contact of the switching relay is connected to the second output of the fourth diode and the first output of the eighth diode of the first group, the fifth, sixth, seventh and eighth selection relay, the first winding pins which are connected to the second pins of the fifth, sixth, seventh and eighth diodes of the first group, respectively, the first fixed contacts of the first to the eighth selection relay are combined, the first moving contacts of the first to the eighth selection relay, the second fixed contacts of the first to the eighth selection relay are combined, the second The moving contacts of the first to the eighth selection relay are the first to eighth outputs of the group of outputs of the first group point, respectively, the second windings of the first to eighth relay of choice

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Pa are combined and are the sixth input of the first group point, for each: the house of eight corresponding monitored items, the first, second and third sensor call relays, the first terminals of which are connected to the first terminals of the first, second and third diodes of the first group, respectively, the first output the fourth diode of the first group is the first input of the corresponding controlled point, the second output of the first diode and the first output of the fifth diode of the first group are combined and are the second input of the corresponding controlled item, the second terminal of the second output pervsh and sixth diodes and the first group are combined. are the third input of the corresponding controlled point, the second output of the third diode and the first output of the seventh diode of the first group are combined and are the fourth input of the corresponding controlled point, the second outputs of the coils of the sensor call relay are the fifth input of the corresponding controlled point, the first - fourth exits of control point under 5

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The first output point of the control point is connected to the fifth input of the first group point, the sixth output of the control point is connected to the sixth input of the first group point, each output of the output group of the first group point is connected to the fifth input of one of the relevant controlled items correspond

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that, in order to increase the reliability of the call to the sensors and the information content of the device, the second, third and fourth group points were entered into it with eight controlled points corresponding to each of them, with eight elements And eight, with inverted inputs, eight, triggers at the control point, sixteen display elements and resistors, a third group of contacts of the call control key, the second group of pins of the Reset button and the switch of common buses, the first inputs of the first and second And elements and the first inputs of the first first and second elements And with inverse inputs combined and VL 0

The first output of the control point, the first inputs of the third and fourth And elements and the first inputs of the third and fourth And elements with inverse inputs are combined and are the second output of the control point, the first inputs of the fifth and sixth And elements, and the first inputs of the fifth and sixth And elements with inverse inputs are combined and are the third output of the control point, the first inputs of the seventh and eighth elements And and the first inputs of the seventh. The first and the eighth elements And with inverted inputs are combined and are the fourth output of the control point, the second inputs of the first, third, fifth and seventh elements And and the second inputs of the first, third, fifth and

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the seventh elements And with inverse inputs are combined and connected to the first fixed contact, the third group of contacts of the call control key; the second inputs of the second, fourth} sixth and eighth elements And the second inputs of the second, fourth, sixth and eighth elements And with the inverse inputs combined and connected to the second fixed contact of the third group of contacts of the call control key, the movable contact of the third group of contacts of which is the control point input, the outputs of the first, third, fifth and seventh About elements And the first, third, fifth and seventh elements And with inverted inputs are connected to the first inputs of the first - eighth flip-flops, respectively, the direct outputs of which through the corresponding elements of ind, ikadii and resistors are combined and connected to the negative terminal of the power supply, the second inputs first - eighth triggers are combined and connected to the first output of the second group of pins of the Reset button, the second output of the second group of pins of which is connected to the negative terminal of the power supply, the outputs of the second, fourth, w grained and eighth AND gates and the second cherverto second, sixth and eighth AND gates with inverted inputs through respective display elements and resistors are combined and connected to the zero terminal of the power supply unit, a second terminal of the first group .vyvodov reset button connected to the movable contact of the switch common buses. per

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the left – fourth quarter fixed contacts of which are the sixth – ninth outlets of the control point, at each of the four group points the second and third groups of diodes, the fifth and sixth moving and fixed contacts of the switching relay, the first terminals of the first to fourth selection relay are connected to the first pins of the first to fourth diodes of the second group, respectively, the first pins of the first to fourth diodes of the third group are combined and connected to the fifth stationary contact of the switching relay, the second pins of the first to fourth The first and fourth relays of the second and third groups are combined and connected to the first moving contacts of the first to fourth selection relays, the first to eighth diodes of the second and third groups are combined and connected to the first moving contacts of the fifth to eighth selection relays, respectively, the second conclusions The fifth - eighth diodes of the second group are connected to the first pins of the fifth - eighth selection relay, respectively, the second pins of the fifth - eighth diodes of the third group are combined and connected to the fifth fixed contact of the crossover relay For example, the fifth moving contact of which is the output of the corresponding group point, the first output winding of the switching relay is the fifth input of the matching group point, the second output winding of the switching relay is connected to the combined first fixed contacts of the first to eighth selection relay, the sixth moving contact of the switching relay is the sixth input of the corresponding group item; the sixth fixed contact of the switching relay is connected to the combined second fixed contacts of the first one - my relay is a selection, at each of the thirty-two monitored points of the second group of diodes and fixed and moving contacts of seven corresponding sensor call relays, the first terminals of the first, second and third diodes of the second group are combined with the fixed contacts of the first, second and third sensors call relays, respectively, The first pin of the fourth diode of the second group is the first input of the corresponding controlled point, the second pin of the first and

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The first output of the diodes of the second group of the union is the second input of the corresponding controlled point, the second output of the second and the first output of the sixth diode of the second group are combined and the third input of the corresponding controlled point, the second output of the third and the first output of the seventh diode of the second group are combined and are the fourth input of the corresponding controlled point, the second conclusions of the fourth - the seventh diodes of the second group are combined with the fixed W contacts of the fourth - the seventh relay you The sensors call, respectively, the moving contacts of the first to the seventh sensor call relays are combined and are the output of the corresponding controlled point, the first and the fourth outputs of the control point are connected to the first 2lt

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Claims (1)

Claim A sensor call device containing _{2 0 a} call control key from the first to eighth call keys, the first fixed contacts of the first contact groups of the first and fourth call keys and 25 the first fixed contact of the first group of call control key contacts are combined, the first fixed contacts of the first groups contacts of the fifth to eighth call keys and the first fixed contact of the second group of contacts of the call control key are combined, the second is fixed. the first contact groups of the first to fourth call keys and the second fixed contact of the first contact key group of the call key are combined, the second fixed contacts of the first contact group of the fifth to eighth call keys and the second fixed contact of the second contact key group of the call keys are combined, the movable contacts of the first contact groups the first and fifth call keys are combined and are the first output of the control point, the movable contacts of the first contact groups of the second and sixth call keys combined and constitute the second input of the control points, the movable contacts of the first group of the third and the seventh call key contacts are combined and are a third output _(control point, the moving contacts of the first group the fourth and eighth call key contacts combined ^ 5 and are the fourth output of the control point, the movable contact per -. howling groups of contacts of the call control key and the first fixed lines 1432578 the clocks of the second groups of contacts of the first to fourth call keys are combined and connected to the negative terminal of the power supply, the movable contact of the second group of contacts of the call control key and the first fixed contacts of the second groups of contacts of the fifth to eighth call keys are combined and connected to the positive terminal of the power supply, mobile contacts the second group of contacts of the first to eighth call keys are the fifth control output, the Reset button, the output of the first group of outputs is connected to the zero terminal of the power supply I, the sixth output of the control point, at the first group point of the switching relay, the first - fourth moving contacts of which are the first - fourth inputs of the first group point, respectively, the fifth input of the first group point, the first - fourth selection relay, the first conclusions of the windings of which are connected to the first conclusions the first to fourth diodes of the first group, respectively, the first fixed contact of the switching relay is connected to the second terminal of the first diode and the first terminal of the fifth diode of the first group, the second are stationary the first contact of the switching relay is connected to the second terminal of the second diode and the first terminal of the sixth diode of the first group, the third fixed contact of the switching relay is connected to the second terminal of the third diode and the first terminal of the seventh diode of the first group, connect the fourth stationary contact of the switching relay to the second terminal of the fourth diode and the first the output of the eighth diode of the first group, the fifth, sixth, seventh and eighth selection relay, the first conclusions of the windings of which are connected to the second terminals of the fifth, sixth, seventh and eighth diodes of the first group, respectively, the first fixed contacts of the first to eighth selection relays are combined, the first fixed contacts of the first to eighth selection relays are combined, the second fixed contacts of the first to eighth selection relays are the first to eighth outputs of the group of outputs of the first group item, respectively, the second terminals of the windings of the first to eighth relays select the item to be monitored, the first diode and the first diodes of the first group are the second input pa combined and are w by the first input of the first group point, on each of the eight corresponding controlled points, the first, second and third sensors call relays, the first outputs of which are connected to the first outputs of the first, second and third diodes of the first group, respectively, the first output of the fourth diode of the first group is the first input of the corresponding second the output is the output of the fifth combined and the corresponding controlled item, the second output of the second and the first output of the sixth diodes of the first group are combined and. are the third input of the corresponding monitored item, the second output of the third diode and the first output of the seventh diode of the first group are combined and are the fourth input of the corresponding monitored item, the second outputs of the sensor call relay windings are combined and are the fifth input of the corresponding controlled item, the first - fourth outputs of the control point are connected to the first to fourth inputs of the first group point 'and to eight corresponding controlled points, respectively, the fifth exit of the control point the phenomenon is connected to the fifth input of the first group point, the sixth output of the control point is connected to the sixth input of the first group point, each output of the group of outputs of the first group point is connected to the fifth input of one of the corresponding controlled points, respectively, characterized in that, in order to increase the reliability of calling sensors and informational content of the device, the second, third and fourth group points are introduced into it with eight controlled points corresponding to each of them, and at the control point There are eight AND elements, eight AND elements with inverse inputs, eight triggers, sixteen indication elements and resistors, a third group of contacts for the call control key, a second group of reset button outputs and a shared bus switch, the first inputs of the first and second elements of AND and the first inputs of the first and second elements AND with inverse inputs are combined and is9 1 O 'are the first output of the control point, the first inputs of the third and fourth elements ΙΊ and the first inputs of the third and. the fourth elements And with inverse inputs are combined and are the second output of the control point, the first inputs of the fifth and sixth elements And and the first inputs of the fifth and sixth elements And with the inverse inputs are combined and are the third output of the control point, the first inputs of the seventh and eighth elements And and the first inputs Seven. of the first and third, fifth, seventh and seventh AND elements with combined inverse inputs are combined and are the fourth output of the point, control, the second inputs of the first, third, fifth and seventh AND elements and the second inputs of the first, third, fifth and seventh AND are connected to the first fixed contact the third group of contacts of the call control key, the second inputs of the second, fourth, sixth and eighth elements And and the second inputs of the second, fourth, sixth and eighth elements And with inverse inputs are combined and connected to w rum fixed contact of the third group of contacts of the call control key, the movable contact of the third group of contacts of which is the input of the control point, the outputs of the first, third, fifth and seventh elements And and the first, third, fifth and seventh elements And with inverse inputs are connected to the first inputs of the first eighth triggers, respectively, whose direct outputs through the corresponding display elements and resistors are combined and connected to the negative terminal of the power supply, the second inputs of the first to eighth triggers The drivers are combined and connected to the first output of the second group of outputs of the Reset button, the second output of the second group of outputs connected to the negative terminal of the power supply, the outputs of the second, fourth, sixth and eighth elements of And and the second, fourth, sixth and eighth elements of And with inverse inputs through the corresponding display elements and resistors are combined and connected to the zero terminal of the power supply, the second output of the first group of outputs of the Reset button is connected to the movable contact of the shared bus switch. Lane 20 - the fourth fixed contacts of which are the sixth to ninth outputs of the control point, at each of the four group points the second and third groups of diodes, the fifth and sixth movable and fixed contacts of the switching relay, the first terminals of the first fourth relay of choice are connected to the first terminals of the first - the fourth diodes of the second group, respectively, the first conclusions of the first to fourth diodes of the third group are combined and connected to the fifth fixed contact of the switching relay, the second conclusions of the first to fourth diodes of the second and third groups are combined and connected to the first movable contacts of the first to fourth selection relays, respectively, the first terminals of the fifth eighth diodes of the second and third groups are combined and connected to the first movable contacts of the fifth to eighth selection relays, the second terminals of the fifth to eighth diodes of the second groups are connected to the first terminals of the fifth to eighth selection relays, respectively, the second terminals of the fifth and eighth diodes of the third group are combined and connected to the fifth fixed contact of the switching relay, fifth the fifth moving contact of which is the output of the corresponding group point, the first output of the switching relay coil is the fifth input of the corresponding group point, the second output of the switching relay coil is connected to the combined first fixed contacts of the first to eighth selection relays, the sixth moving contact of the switching relay is the sixth input of the corresponding group point , the sixth stationary contact of the switching relay is connected to. by the combined second stationary contacts of the first to eighth relays you ora, at each of thirty-two controlled points, the second group of diodes and the fixed and movable contacts of the seven corresponding sensors call relays, the first outputs of the first, second and third diodes of the second group are combined with the fixed contacts of the first, second and third sensors call relays, respectively, the first output of the fourth the diode of the second group is the first input of the corresponding controlled item, the second output of the first and 143257 “the first output of the fifth diodes of the second group are combined and are the second input of the corresponding controlled item, the second output of the second and first output of the sixth diodes of the second group are combined and are the third input of the corresponding controlled item, the second output of the third and the first output of the seventh diodes of the second group are the fourth the input of the corresponding controlled item, the second conclusions of the fourth - seventh diodes of the second group are combined with fixed contacts to the fourth - seventh relay call the sensors, respectively, the movable contacts of the first - seventh relay call sensors are combined and are the output of the corresponding controlled jq point, the first and fourth outputs b: m - the fourth inputs of the second, third. and the fourth group points and to the remaining twenty-four controlled points, respectively, the fifth output of the control point is connected to the fifth inputs of the second, third and fourth group points, the seventh, eighth and ninth outputs of the control point are connected to six inputs of the second, third and fourth group points, respectively. the outputs of the first '- fourth group points and all thirty-two controlled points are combined and connected to the input of the control point, each output of the group of outputs of the second, third and h Fourth group points connected to the fifth input of one of the remaining twenty-four corresponding control points are connected to the first points. I I ~. . -. ----— t- -r --------- ----------- a ———— Control- Diode and its connection to the call inne output '' <  . steered paragraph 200 201 • 202. 203 204 205 . 206 is alive CONCLUSION inna CONCLUSION Zhiyaa come out oia CONCLUSION Zhna - CONCLUSION kina j CONCLUSION the fault CONCLUSION —G · ’······· • 7 (K1) 215 • 216 20 214 215 216 717 (20) to (thirty) to (4th) TO (10) A ,. · (20) A (ZI) A ' (40) A £ (K2) 214 216 217 · 214. 215 * 216 217 (10) TO (thirty) to (40) TO (1Sh) A (20) A (zs) A (40) A • 9 (short circuit) 214 215 217. 214 • 215 216 217 (1Sh) to 1 (20) to • (40) TO (10) A (2Sh) A (Behind)' A (40) A 10 (K4). ’ 214 215 217 214 215 216 217 ' (.10) to (20) to (PS) TO (10) 1* _. (20) A (ZH) A (4V) A 11 (K5) 214 215 21) 217 .215 / 216 217 (10) to (20) to (thirty). to (40) to (20) A (thirty) A (40) A 12 (Kb) 214 215 217. 217 214 216 217. (10) to L2I) to (thirty) to (4th) to (10) A (ZI) A (40) A 13 (K7) '214 215. 217 217 214 215 217 (10) to (20) to (ZN) to (4Sh) to (10) A (2I) A (48) A | 4 (K8) 214 215 2) 7 217 214 215 216 (10) to  I (2Sh) X | (zi) to (40) to (118) A (20) A (ZH) A ] < I 1 ~ ± .-- 1 q.4 q Fq q HS 1 L.J Φι / 8.3