SU1606983A1 - Device for signaling the state of actuator - Google Patents

Abstract

The invention relates to the automation of technological processes, is intended for use as a means of displaying information on dynamic displays, allows signaling of the control place of stop-regulating and similar actuators controlled from two control points, and to ensure the accuracy of the display of the state of actuators technological locks of the control of the latter by technological parameters or by the position of other actuators in and can be used in control systems in the gas, chemical, energy, and other industries. The aim of the invention is to increase the information content of the device. To do this, a device containing two end position sensors, nine AND elements, eleven OR elements, an OR-NOT element, four indicators, three triggers, a pulse generator, two information buses, and Close, Open, Stop buses. and a "Reset" pulse distributor, which is made of two triggers and four I elements, and a decryption unit, which is made of two diodes, two transistors, six resistors, a capacitor, two power lines, the first element NOT, the first element I, and a relay, are entered three elements And and two information shi an ISI element is entered into the pulse distributor, and two diodes are inserted into the decryption unit, the second relay, the second element NOT, and the second element I. The invention provides for signaling the selection of the control tower, the actuator blocking and the simultaneous call to the executive control mechanism from different control panels. 3 il.

Description

And the acquisition relates to the automation of technological processes, is intended to be used as a means of displaying information of ICT on dynamic mnemonic diagrams, allowing to signal the place of control of shut-off and other actuators controlled from two control points, and to ensure the accuracy of display of the state of actuators .Hanisms with technological control locks of the latter by technological parameters or by the position of other executive m Mechanisms, and can be used in control systems in the gas, chemical, energy and other industrial sectors.

The aim of the invention is to increase the information content of the device.

In FIG. 1 is a diagram of an apparatus for signaling the status of an actuator; FIG. 2 is a pulse distributor circuit; in fig. 3- a diagram of the decryption unit and its connection to the fork: —frame m of the signals of the selective controls from the control centers of the control and malfunction.

The device contains sensors 1 and 2 of the end position of the actuator (Closed and Open respectively), end position indicator 3 (Closed), end position indicators 4 and 5 (Elements OR 6-9 are open, AND elements 10 and 11, element 12 OR , triggers 13 and 14, generator 15 pulses, bus 16 Close, bus 17 Open, bus 18 Stop, elements 19-24 Ifflli, elements 25-28 I, trigger 29, valve 30 pulses, bus 31 Reset elements And 32, 33 and 34 ,, decryption unit 35, element OR 36, indicator 37, electoral control information bus 38 Control 1 , information bus 39 Fault, information bus 40 selective control Management 2 information bus 41 Interlock actuator, elements And 42., 43 and 44.

The distributor 30 pulses is made of the triggers 45 and 46, the elements AND 47-50 and the element AND-NOT 51.

The decoding unit -35 is made of ral 52 with a switching contact 53, power bus 54, a relay 55 with a switching contact 56, a pin 57 for supplying resistors 58-63, a capacitor 64, diodes 65-68, transistors 69 and 70, a HE 71 element, element AND 72, element NO 73 and element And 74.

The information busses 38-41 could be supplied with signals from the sensors, 75- 78; Distributor 30 has outputs 79-83, and block 35 to decryption; - output 84-87,

The device for signaling the position of the actuator operates as follows.

The initial state of the elements of the device depends on the initial position of the actuator, as well as on previously issued commands. For example, if the Close or Open commands were given, then the trigger 14 from its direct output outputs a signal of a logical unit and a logical zero signal, if the command Element OR-NO 12 was previously issued a signal of a logical unit when the actuator is not in any of the extreme positions.

Accepted for the first initial initial position is when the fully closed actuator is in good condition and is not chosen to be erased by the operator from any control tower. In this end sensor 1 is closed, the signal of the logical unit through the element OR 6 causes an even glow. 3 position indicator Closed on Indiators 4 and 5 Position Open is not illuminated, since the end position 2 sensor is Open and the IfflH-HE-12 element outputs a logical zero signal. Indicator 37 is also in the off state, since there are no signals on information buses 38-41.

Random commands Close, Hundred and Reset do not cause a change in the position of the actuator, and accordingly, the glow of the indicators 3,4, 5 and 37.

If, for any reason, in the first initial initial position, the actuator is out of order, for example, when there is no supply voltage for the actuator drive, as indicated by the presence of a logic unit signal on the information bus 39 Fault, and consequently, on, output 86 the decryption unit 35, the indicator 37 illuminates evenly, indicating that this actuator is not controllable.

For the second starting position, we take this when the executive mechanism is completely closed;

5 16 is in good condition and elected to control from one of the control centers. In this case, the end position indicator 3 is closed with a steady light, the end position indicators 4 and 5 are turned off, and the indicator 37 lights up depending on the choice of controlling the blinking or pulsed light generated by discrete varying signals with different duty ratio: if the first control room is selected for control point, toe. via the selective control information bus 38, Control 1, the device receives a logical zero signal, which generates a discrete varying signal at a second output 85 of decryption unit 35 with a pulse generator frequency of 15 pulses with a signal ratio of 2, and output 84 of a logical unit that prepares To work elements And 32 33, 34 and 43, and at the output 87 - a signal of logical zero. At the same time, through the element AND 42 and the element OR 36, these pulses with well 2 come to the indicator 37, while the element 43 is blocked by the logical zero signal coming from the information bus 38 of the selective control Office 1, thus 37 will not receive pulses with a ratio of 1/4.

If, however, a second dispatch center is selected for control, then on control information bus 40, Control 2, a logical zero signal appears, which generates the same signals at outputs 84-87 of decryption unit 35 the same as in control from the first control tower, t. e. output 84 is a logical unit signal, preparing elements for operation 32, 33, 34, and 43, output 85 is a discretely varying signal with a frequency of generator 15 with a duty cycle of 2, and output 87 is a signal of logical zero. However, the logical zero signal coming over the selective control data bus 40 of Control 2 blocks the element 42. At the same time, the discrete-varying signal from the output 81 of the pulse distributor 30 pulses through the element 43 and the element OR 36 enters the indicator 37, which is pulsed with light.

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In the case of simultaneous delivery of commands via information buses 38 and 40, the indicator 37 is in the off state, since the signals of the logical zero simultaneously block the elements 42 and 43. This allows you to adjust the actions of the personnel working at different control points, and exclude the simultaneous control mechanism from two control points.

At 1: apicine of the blocking signal that enters the device via the information stitch 41 Block, the output 87 of the decryption unit 35 generates a signal of the logical unit, and the outputs 85 and 84 signal the logical zero o This triggers the AND 44, which, from the element IL 36 receives a discretely varying signal from the output 83 of the distributor 30 and ray with a duty cycle of 4 to the indicator 37, which is illuminated

5 intermittent light. When there is a signal on the information bus 41 A lock on block 84, a logical zero signal appears that blocks AND 32, 33, 34, and 43.

So the flashing light

thirty

Indicator 37 indicates that the actuator is selected by the operator for recruiting from the first control tower. OperativeTop, making sure that there is no intermittent glow with a ratio of 4, which indicates that there is no blocking, can proceed with the command to rearrange the test.

0 mechanism.

When the Open command is issued on bus 17, the trigger 13 switches to the inverse state, and the triggers 14 and 29 go straight. At the same time

5 control (not shown) the command Open to actuator actuator is given. If the actuator starts to execute this command, then as soon as the end position sensor 1 is closed, a logic zero signal is given, the position indicator 3 closes off, and the position indicator 4 and 5 Open intermittently light vehicle, because the input

Element 5 And 11 receive potential long-term signals of a logical unit from Element RSHI-HE 12, triggers 13 and 14, and pulses from a generator 15 pulses. The blinking lights of indicators 4 and 5 of the Open position indicate the transition process (movement) of the executing mechanism in the direction of its opening.

As soon as the actuator is fully open, the signal of the logical unit appears at the output of the Open position sensor 2, which

through the element OR 19 switches the trigger mechanism.

A state 29 is in such a state that at its inverse output a signal of a logical unit appears allowing the pulses from the distributor 30 to pass through the elements AND 27 and 28 to the elements OR 23 and 24. At the same time, the indicators 4 to 5 are open. in the running light mode, which indicates the full opening of the executive mechanism and the movement of the material or energy flow in it. The light on the indicators 4 and 5 is open. In this case, it reaches. In the event of a feed through the I6 bus. Close commands. Close the triggers 13 and 14 from the inverse state are transferred to the forward one, as a result of which the 15 and 4 position switches are open. and the 3 position indicator is closed with a blinking light, which indicates that the actuator is moving in the direction of closure. If the actuator reaches its final position Closed, then the flashing 3 position indicator Closed go into a steady light, indicating

1W, by performing the following post-25 final closed state of executions 27 and 28 and a logical unit to the input of the element OR 23, as a result of which the 4 position indicator is turned off, and the position indicator 5 is illuminated with a steady light. The half-glow of the mnemonic sign qualitatively signals an intermediate, half-open static state of execution.

In the case of filing on the I6 bus. Close commands. Close the triggers 13 and 14 from the inverse state go to the direct one, as a result of which the position indicators 4 and 5 are open are turned off, and the 3 position indicator is closed, flashing, indicating that the executive has moved. Mechanism in the direction of closing. If the actuator reaches its final position Closed, the flashing 3 position Closed indicator turns into a steady light, indicating

final closed state execute

The light is illuminated: at first, only the 4 position indicator is on, then the 4 and 5 position indicators are on, then only the 5 position indicator and then 4 and 5 positions are off, in the case where the presence of a running light can last for a long time, on bus 31 Reset is fed

telny mechanism. If during movement of the actuator in the direction of its closure for any reason, the Stop command receives 30 Stop commands, then the 3 position indicator is Closed, turned off, and the 4 and 5 position indicators are opened by a running light, informing about the termination of the transient process in

a control signal that translates the 35 side of the close and the start of the trigger 29 to the forward state, in which the transmission of pulses from the distributor 30 pulses to the OR 23 and 24 elements is stopped, and from the output of the AND 26 element a 40 long potential signal of the logical unit begins to arrive, which causes a steady glow of indicators 4 and 5 of the position Open.

If, prior to the completion of the full opening of the 45 actuator, on a pin 18 stop, a command is given. The stop then the actuator stops and the triggers 14 and 29 switch to the inverse state. Switching dd trigger 29 permits the transmission of pulses from a distributor of 30 pulses through AND 27 and 28 elements to position indicators 4 and 5 Open, providing simulated traveling light. 55 hardly supplying an acknowledgment signal via bus 31 Reset trigger 29 returns to its initial state, giving a logical zero signal to the elements

The operation mechanism of the actuator is in the semi-open state. After running light has been acknowledged by sending a signal on the bus. 31 Reset is a steady light only 5 position indicator Open, indicating a half-open state of the actuator.

If during the movement from the Closed to the Open (or vice versa) position, a malfunction occurs in the actuator (for example, closing), then the information bus 39 The malfunction receives a logical unit signal that translates the flashing or pulsed light of the indicator 37 to an even . By the even glow of the indicator 37 along with the flashing glow of the indicator

3 Position Closed or Indicator

4 and 5 positions The fault is discovered openly and the direction in which it occurred.

telny mechanism. If during the movement of the actuator towards its closure for any reason, the Stop command is commanded by the Stop command, then the 3 position indicator is Closed, turned off, and the 4 and 5 position indicators are opened by a running light, informing about the termination of the transition process at

the closing side and the beginning of the steady state operation of the actuator in a semi-open state. After running light has been acknowledged by sending a signal on the bus. 31 Reset is a steady light only 5 position indicator Open, indicating a half-open state of the actuator.

If during the movement from the Closed position to the Open position (or vice versa) a malfunction occurs in the actuator (for example, closing), then the information bus 39 Malfunction receives a logical unit signal that converts the flashing or impulse luminescence of the indicator 37 to even. By the even glow of the indicator 37 along with the flashing glow of the indicator

3 Positions Closed or Indicators

4 and 5 positions The fault is discovered openly and the direction in which it occurred.

formula

1606983

the invention

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A device for signaling the state of the actuator, containing a pulse distributor, which is made from the first trigger, whose input is the input to the pulse distributor, the first output of the first trigger, is connected to the first inputs of the first and second elements I and to the input of the second trigger, The first output of which is connected to the first input of the third element And to the second input of the second element And, the second output of the second trigger is connected to the first input of the fourth element And and to the second input of the first element And, in Ora output of the first flip-flop is connected to the second inputs of the third and fourth AND gates, the outputs of the first, third, second and fourth AND elements are respectively first, second, third and

In some position, the first one is connected to the first inputs of the first second element OR and the first to the house of the element OR NOT, the output of which is connected to the first inputs of the first, second and third elements AND, you move the first element AND connected to the second input of the first element OR the output of which is connected to the first and positioning indicators, the second end position sensor is connected to the second input of the OR-NOT element, to the first inputs of the third and fourth elements of the 15th OR and the fourth element AND, during which it is connected to the first five and sixth uh ementov OR, whose output is connected sootvets venno to the second position and a third indicatrix frames bus Close, cat pa is connected to the first input of the n AND gates whose outputs are connected to first inputs of the seventh and eighth OR elements and to the second input tre

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the fourth output of the distributor of the 25th element OR, the output of which

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pulses, a decryption unit, which is made of the first relay, the first output of the switching contact of which is connected to the first output of the first resistor and the cathode of the first diode, the anode of which is connected to the first output of the second resistor and the anode of the second diode, the cathode of which is connected to the first output of the third resistor and with the base of the first transistor, the collector of which is connected to the first terminal of the fourth resistor, the second terminal of the first resistor is connected to the first terminal of the capacitor, to the first terminal of the fifth resistor and to the base of the second The transistor, the emitter of which is connected to the emitter of the first transistor, with the first power bus, with the second terminals of the capacitor and the third and fifth resistors, the collector of the second transistor, the sixth resistor is connected to the second power bus, which is connected to the second terminals of the second and fourth resistors and the switching contact the first relay and the first output O6MOTkH of the first relay, the second output of which is the first input of the decryption unit,. from the first element AND, the first input of which is the second input of the decryption unit, and the output is the first output of the decryption unit, from the first element NOT, the output of which is the second output of the decryption unit, two sensors ko connected to the first input of the first trigger, the first output of which connected to the second input of the first element AND, the bus Open, which is connected to the first input of the sixth element AND whose output is connected to the second inputs of the second, seventh and eighth OR elements, the output of the second OR element is connected to the second input 35 of the first on the trigger, the second output koto

45

connected to the second input of the second element AND, whose output is connected to the second inputs of the fifth and sixth elements OR, the output of the seventh element 40 of the OR is connected to the first input of the trigger, the first output of which is connected to the third inputs of the first and second elements And, the second - with the second input of the third element And, the output of which is connected to the third input of the sixth element And, and to the output of the eighth element And, bus Stop, which is connected to the first input of the seventh element And, the output of which is connected to the second input in th trigger and to to the second input of the fourth element OR, the output of which is connected to the first input of the third trigger, the first output of which is connected to the third input of the third element I and to the second input of the fourth element And, the Reset bus, which is connected to the third input of the eighth element OR, output which connect

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in some position, the first of which is connected to the first inputs of the first and second OR elements and to the first input of the OR-NOT element, the output of which is connected to the first inputs of the first, second and third elements AND, the output of the first AND element connected to the second input of the first OR element, the output of which is connected to the first position indicator, the second end position sensor is connected to the second input of the element OR NOT, to the first inputs of the third and fourth elements OR and the fourth element AND, the output of which is connected to the first inputs of Of the second and sixth OR elements, the output of which is connected respectively to the second and third position indicators, the Close bus, which is connected to the first input of the fifth AND element, the output of which is connected to the first inputs of the seventh and eighth OR elements and to the second input of the third

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5 th element OR, the output of which

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connected to the first input of the first trigger, the first output of which is connected to the second input of the first element AND, the Open bus, which is connected to the first input of the sixth element AND, the output of which is connected to the second inputs of the second, seventh and eighth elements OR, the output of the second element OR is connected to the second input 5 of the first trigger, the second output is 5

connected to the second input of the second element AND, the output of which is connected to the second inputs of the fifth and sixth elements OR, the output of the seventh element OR is connected to the first input of the trigger, the first output of which is connected to the third inputs of the first and second elements AND, and the second with the second input of the third element AND, the output of which is connected to the third input of the sixth element OR, and to the output of the eighth element And, the Stop bus, which is connected to the first input of the seventh element And, the output of which is connected to the second input of the second valve igger and to the second input of the fourth element OR, the output of which is connected to the first input of the third trigger, the first output of which is connected to the third input of the third element And to the second input of the fourth element And, the Reset bus, which is connected to the third input of the eighth element OR, output which connect5

Chan to the second input of the third trigger, the second output of which is connected to the first inputs of the eighth and ninth elements AND, the upper ninth element AND is connected to the third input of the fifth element OR, the first information bus, which is connected to the first input of the decryption unit, the second output of which connected to the first input of the OR of the OR element, the output of which is connected to the fourth position indicator, the pulse generator, the output of which is connected to the input of the pulse distributor, to the fourth inputs of the first and second elements, And to watts to the first input of the decryption unit, the third output of which is connected to the second inputs of the fifth, sixth and seventh elements And, the first output of the pulse distributor is connected to the first input of the tenth element OR, the output of which is connected to the second input of the eighth element And, the second output of the pulse distributor is connected to the second input of the tenth element OR to the first input of the eleventh element OR, the output of which is connected to the second input of the ninth element I, the third output of the pulse distributor is connected to the second input eleven The OR element, the second information bus, is characterized in that, in order to increase the informational capacity of the device, the third and fourth information buses are entered into it, and the tenth, eleventh and twelfth AND elements, the NAND element is entered into the pulse distributor, and the decryption unit introduced the third and fourth diodes, the second element AND, the second element NOT and the second turnip, in the pulse distributor, the second outputs of the first and second triggers are connected respectively to the first and second inputs of the AND-NOT element, the output of which is the fifth output th pulse distributor, a decryption unit

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the third pin of the switching contact of the first relay is connected to the anodes of the third and fourth diodes, the cathodes of which are respectively the third and fourth inputs of the decryption unit, the collector of the second transistor is connected to the input of the first element NOT, the collector of the first transistor is connected to the second input of the first element And the second element And, the output of which is the third output of the decryption unit, the first output winding of the second relay is the fifth input of the decryption unit, and the second is connected to the second bus power and with the first output of its own switching contact, the second output of which is connected to the first power bus, and the third to the second input of the second element AND, to the third input of the first element AND to the input of the second element NOT, the output of which is the fourth output of the decryption unit, the second the information bus is connected to the first input of the tenth element I and to the third input of the decryption unit, the first output of which is connected to the first input of the eleventh element 30 And, the output of which is connected to the second input of the ninth element OR, the third the information bus is connected to the second input of the eleventh AND element and to the fourth input of the decryption unit, the fourth output of which is connected to the first input of the twelfth AND element whose output is connected to the third input of the ninth OR element, the fourth information bus is connected to the 40th fifth block input decoding, the third output of which is connected to the second input of the tenth element And, the output of which is connected to the fourth input of the ninth element OR, the fourth and 45th fifth outputs of the pulse distributor are connected respectively on the third input of the tenth AND gate and a second input of the twelfth element I.

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Claims (1)

Claim A device for signaling the state of the actuator, containing a pulse distributor, which is made of the first trigger, the input of which is the input of the pulse distributor, the first output of the first trigger is connected to the first inputs of the first and second elements Y and to the input of the second trigger, the first output of which is connected to the first input of the third element And and to the second input of the second element And, 15 the second output of the second trigger is connected to the first input of the fourth element And and to the second input of the first element And, the output of the first trigger is connected to the second inputs 20 of the third and fourth elements And, the outputs of the first, third, second and fourth elements And are respectively the first, second, third and fourth outputs of the pulse distributor 25 pulses, the decryption unit, which is made of the first relay, the first terminal of the switching contact is connected to the first terminal of the first resistor and to the cathode of the first diode, the anode 30 of which is connected to the first terminal of the second resistor and the anode of the second diode, the cathode of which is connected to the first terminal of the the fifth resistor and the base of the first transistor, whose collector ^ 5 is connected to the first output of the fourth resistor, the second output of the first resistor is connected to the first output of the capacitor, to the first output of the fifth resistor and to the base of the second transistor, the emitter of which is connected to the emitter of the first transistor , with the first power bus, with the second terminals of the capacitor and the third and fifth resistors, the collector of the second 45 transistor through the sixth resistor is connected to the second power bus, which is connected to the second terminals of the second and fourth rtogo resistors and the switching contact of the first relay 50 and per- vomu conclusion first relay winding, a second terminal which is the first input of the decryption block. from the first element And, the first input of which is the second input of the decryption unit - $$ days, and the output - the first output of the decryption unit, from the first element NOT, the output of which is the second output of the decryption unit, two end position sensors, the first of which is connected to the first inputs of the first and second OR elements and with the first input of the OR-HE element, the output of which is connected to the first inputs of the first, second and third AND elements, the output of the first AND element is connected to the second input of the first OR element, the output of which is connected to the first and by the position dictator, the second end position sensor is connected to the second input of the OR-HE element, to the first inputs of the third and fourth OR elements and the fourth AND element, the output of which is connected to the first inputs of the fifth and sixth OR elements, the outputs of which are connected respectively to the second and third indicators position, Close bus, which is connected to the first input of the fifth AND element, the output of which is connected to the first inputs of the seventh and eighth OR elements and to the second input of the third OR element, the output of which is connected to the first input of the first trigger, the first output of which is connected to the second input of the first AND element, the Open bus, which is connected to the first input of the sixth AND element, whose output is connected to the second inputs of the second, seventh and eighth OR elements, the output of the second OR element is connected to the second input the first trigger, the second output of which is connected to the second input of the second AND element, the output of which is connected to the second inputs of the fifth and sixth OR elements, the output of the seventh OR element is connected to the first input of the second trigger, the first the output of which is connected to the third inputs of the first and second AND elements, and the second to the second input of the third AND element, the output of which is connected to the third input of the sixth OR element and to the output of the eighth AND element, the Stop bus, which is connected to the first input of the seventh AND element whose output is connected to the second input of the second trigger and to the second input of the fourth OR element, the output of which is connected to the first input of the third trigger, the first output of which is connected to the third input of the third AND element and to the second input of the fourth element Entente I, the Reset bus, which is connected to the third input of the eighth OR element, the output of which is connected11 1606983 chan to the second input of the third trigger, the second output of which is connected to the first inputs of the eighth and ninth AND elements, the output of the ninth AND element is connected to the third input of the fifth IL element , the first information bus, which is connected to the first input of the decryption unit, the second output of which is connected to the first input of the ninth OR element, the output of which is connected to the fourth position indicator, a pulse generator, the output of which It is connected to the input of the pulse distributor, to the fourth inputs 15 | of the first and second elements And and to the second input of the decryption unit, the third output of which is connected to the second inputs of the fifth, sixth and seventh elements And, the first output of the pulse distributor 20 is connected to the first input of the tenth OR element, the output of which is connected to the second input of the eighth AND element, the second output of the pulse distributor is connected to the 25th second input of the tenth OR element and to the first input of the eleventh OR element, the output of which is connected to the second the input of the ninth element And, the third output of the pulse distributor 3 is connected to the second input of the eleventh element OR, the second information bus, characterized in that, in order to increase the information content of the device, the third and fourth information buses and the tenth, eleventh and twelfth elements of And are introduced into it, The AND-NOT element is inserted into the pulse distributor, and the third and dd fourth diodes, the second AND element, the second NOT element and the second relay are introduced into the decoding unit, the second outputs of the first and second triggers in the pulse distributor Gerov connected respectively to the first and second inputs of the element AND NOT, output to. which is the fifth output of the pulse distributor, in the decryption unit, the third output of the switching contact of the first relay is connected to the anodes of the third and fourth diodes, the cathodes of which are the third and fourth inputs of the decryption unit, the collector of the second transistor is connected to the input of the first element NOT, the collector of the first transistor is connected to the second input of the first element Inc to the first input of the second element And, the output of which is the third output of the decryption unit, the first output of the winding of the second relay is the fifth input of the decryption unit, and the second is connected to the second power bus and to the first output of its own switching contact, the second output of which is connected to the first power bus, and the third to the second input of the second AND element, to the third input of the first AND element and to the input of the second NOT element, the output of which is the fourth output of the decryption unit, the second information bus is connected to the first input of the tenth. element And and to the third input of the decryption unit, the first output of which is connected to the first input of the eleventh element the output of which is connected to the second input of the ninth OR element, the third information bus is connected to the second input of the eleventh AND element and to the fourth input of the decryption unit, the fourth output of which is connected to the first input of the twelfth AND element, the output of which is connected to the third input of the ninth OR element, the fourth information the bus is connected to the fifth input of the decryption unit, the third output of which is connected to the second input of the tenth AND element, the output of which is connected to the fourth input of the ninth OR element, the fourth and the fifth outputs of the pulse distributor are connected respectively to the third input of the tenth element And and to the second input of the twelfth element I.