JP2685116B2 - Transport path controller - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention sets a conveying path from one sampling port to a desired final destination system and confirms the establishment of the conveying path. The present invention relates to a sport-cut control device that determines the destination of the powder according to the mouth after mill roll.

[0002]

2. Description of the Related Art In a milling plant, wheat or the like is milled by a mill roll machine to make flour. Since the destination of this flour is different for each grade, it is necessary to make a destination (route) of the flour milled by the mill roll machine. The cut valve control used is called sport cut.

FIG. 5 is a view showing the arrangement of the cut valve (CV) and the piping route in one sampling port of a flour milling plant. In the figure, 1 is a mill roll machine that grinds wheat or the like into powder, and 2 is a rocker, which has a function of temporarily storing the powder milled by the mill roll machine 1. Reference numeral 3 is a shifter, which has a function of screening off the ground powder, and sending the screened powder to another roll machine, another shifter or purifier (purification device) again. Reference numeral 8 denotes a pipe through which the powder flows, which forms a transfer path that branches from one of the shifter 3 to reach a plurality of final destination systems. 9a-9
e is a conveyor provided for each grade of powder as a final destination system (S system to 4 system), and the powder flowing from the pipe 8 is placed on the conveyors 9a to 9e and charged into the silo of each grade. Therefore, it is conveyed to the next step. Reference numeral 74 is a cut valve (CV) provided at the first branch point of the pipe 8 from the shifter 3, and is a valve No. 74. Is CV01, and the exciting coil CV01 (A) or the exciting coil CV01 that constitutes the selecting means together with the cut valve 74.
By exciting (B), the cut valve 74 opens in the direction of excitation. A limit switch (LS) that mechanically detects that the valve is open is attached to the cut valve 74 as a detection means. No. of this limit switch Is the LS01, and when the exciting coil CV01 (A) is excited and the valve of the cut valve 74 opens in that direction, the limit switch L
The switch contact of S01 (A) is closed. Conversely, when the exciting coil CV01 (B) is excited and the valve of the cut valve 74 opens in that direction, the limit switch LS
The switch contact of 01 (B) is closed.

The cut valves 74, 75, 76, 77 are also provided.
It is a cut valve having the same function as. No. of cut valves 75, 76, 77. Are CV02 and CV respectively
03, CV04, and the limit switch No. Are LS02, LS03, and LS04, respectively.

Next, the operation will be described. The setting of the sport cut is such that the operator manually operates the cut valve to operate the cut valve and constantly monitors the state of the limit switch. As a result, a route was created to determine the destination of the powder, and it was confirmed by constant monitoring that the route was established. For example, the final destination system for powder is the 1-system conveyor 9
In the case of b, the operator confirms that the valves of the cut valves 74 and 75 must be set as shown by the solid lines in order to establish the route, and then the corresponding exciting coil CV01
(B) and the exciting coil CV02 (A) are excited. As a result, the cut valve 74 has 1, 2,
The valve operates as shown by the solid line so that it flows to the 3rd and 4th systems.
The cut valve 75 operates as shown by the solid line so that the powder flows to the 1st system. As a result, the route (conveyance path) through which the powder flows from the intake of the shifter 3 to the 1-system conveyor 9b via the cut valves 74 and 75 is set, and the limit switch LS01 (B) attached to the cut valves 74 and 75 is set. ), The switch contact of the limit switch LS02 (A) is closed and the detection signal is output,
The operator can confirm that the route to the 1-system conveyor 9b has been established.

[0006]

Although this kind of conventional control is performed as described above, there are about 100 intakes and about 300 cut valves in a flour milling plant or the like.
Due to the large number of operations and monitoring targets, the settings, confirmation of the establishment of the transport path, constant monitoring, etc. become extremely complicated, and even if there is even one incorrect setting, it malfunctions, placing a heavy burden on the operator. Further, since the number of cut valves is large, there is a problem in that, when the setting is changed, a time difference occurs before all the cut valves are switched.

The present invention has been made in order to solve the above problems, and it is possible to easily perform settings, confirmation of the establishment of a conveyance path, constant monitoring, etc., and reduce the burden on the operator. An object of the present invention is to obtain a transport path control device that can be used. Another object of the present invention is to obtain a transport path control device capable of simultaneously operating all the cut valves (selection means) and eliminating the time difference until all the selection means are switched even when the setting is changed. To do.

[0008]

According to a first aspect of the present invention, there is provided a conveyance path control device which sets a final destination system using a corresponding character code and a set character code to judge and select the setting means. It is provided with a control means for converting into a numerical code indicating the control contents of the means and controlling each selecting means based on this numerical code.

In the present invention, the control means associates the control contents of all the selection means in one sampling with each bit of one numerical code, and one numerical code converted from the character code. The selection means are controlled at the same time based on the value of each bit.

Further, according to a third aspect of the present invention, the control means causes the output of each detection means paired with each selection means to correspond to each bit of one numerical code according to the same rule as the selection means.
By confirming the numerical code indicating the output of each detecting means and corresponding it to the character code, the confirmation display of the establishment of the transport path corresponding to the set character code is performed.

Further, in claim 4, an abnormality is notified when the set character code does not match the determination result of the numerical code indicating the output of each detecting means within a predetermined time after the character code is set. It is equipped with an abnormality notifying means.

Further, in the present invention, the control means is
A processing unit for performing numerical coding of the character code set by the setting means and character coding of the numerical code indicating the output of each detecting means, and controlling each selecting means based on the numerical code, and outputting each detecting means. Is output as a numerical code, and the processing unit and the drive detection unit are configured in the same storage board.

[0013]

According to the first aspect of the present invention, the setting means is converted into a character code, and the control means is converted into a numerical code, so that the final destination system is simply set by the corresponding simple character code. Each selection means is automatically controlled by being converted into a numerical code indicating the control content of the selection means, and a transport path from one sampling port to a desired final destination system is established. In addition, since the set character code is judged and then converted to a numerical code, the setting means is not transmitted to the selecting means even if the setting is mistaken, so the selecting means does not malfunction.
The current status will be maintained.

Further, according to the second aspect, since all the selecting means in one mouth are treated as one numerical code, the simultaneity of the operations of the selecting means can be realized. Therefore, when changing the setting, there is no time lag until all the selection means are switched.

Further, in claim 3, the one in which each detecting means is bit-assigned for each mouth according to the same rule as the selecting means is treated as one numerical code, and this numerical code is judged and corresponds to the character code. By doing so, not only the setting but also the confirmation of the establishment of the transport path (answer check), and further, the constantly displayed state can be handled by the character code.

Further, according to the present invention, even if a predetermined time in consideration of the operating time of the selecting means has elapsed after setting the character code, the set character code and the numerical code indicating the output of each detecting means are displayed. When the judgment result does not match, that is, when the operation trouble of the selecting means or the detecting means occurs, the abnormality notifying means operates to notify the operator of the occurrence of the operation trouble of the selecting means or the detecting means.

Further, according to claim 5, the processing unit and the drive detection unit constituting the control unit are configured on the same storage board in accordance with the character code of the setting unit and the numerical code of the control unit. As a result, the interface unit and the register unit required when the processing unit and the drive detection unit are housed in separate housings are unnecessary.

[0018]

【Example】

Embodiment 1 FIG. Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing an arrangement of cut valves and a piping route in one sampling port of a flour milling plant. In the figure, 1 is a mill roll machine, 2 is a rocker, 3 is a shifter, 8 is a pipe, and 9a to 9e are conveyors. Reference numeral 4 is a cut valve (CV) provided at the first branch point of the pipe 8 from the shifter 3, and is a valve No. Is CV1742. In addition, the cut valves are all operated in two positions,
The cut valve (CV1742) 4 operates so that powder is caused to flow to the pipe side toward the S-system conveyor by the excitation of the excitation coil CV1742 (A). On the other hand, when the exciting coil CV1742 (B) is excited, the valve operates so that the powder flows toward the pipe side to the 1-system or 2-system conveyor. Also,
No. of limit switch (LS) that mechanically detects the valve operation of the cut valve 4. Is LS1742 and powder is S
The limit switch LS is pressed while the valve of the cut valve 4 is pressed down so that the cut valve 4 flows toward the piping side to the system conveyor.
The switch contact of 1742 (A) is closed. On the other hand, the limit switch LS1742 (B) while the valve is being pushed down so as to flow to the pipe side to the 1-system or 2-system conveyor
The switch contact of is closed.

Cut valves 5 and 6 are the same as the cut valve 4 described above. Are CVs
1743 and CV1744. Excitation coil C
The limit switch LS1743 operates while the valve operates so that the powder flows to the pipe for the 1-system conveyor by the excitation of V1743 (A) and CV1744 (A), and the valve is pushed down.
The switch contacts of (A) and LS1744 (A) are closed. Further, both are excitation coils CV1743 (B), C
With the V1744 (B) excitation, the valve operates so that the powder flows to the piping for the 2nd system conveyor, and while the valve is fully pressed,
Limit switches LS1743 (B), LS1744
The switch contact of (B) is closed.

2 and 3 are block diagrams showing a first embodiment of the control device according to the present invention. In each figure, the alternate long and short dash line shows the range of the storage board, 10 is an OPS (operator station with CRT) board, 20 is a PLC (plant controller) board, 40 is a solenoid valve board (solenoid valve control sequencer storage board) The OPS board 10 corresponds to the setting means of the present invention, and the PLC board 20 and the solenoid valve board 40 correspond to the control means of the present invention.
The solenoid valve board 40 is shown only in the configuration corresponding to the cut valves 4 to 6 in FIG.

Reference numeral 11 in the OPS panel 10 is a sport cut setting display window. In the figure, the sampling port is 2MCH, 1SB.
(1) Three windows of T, 1B (1) are described in one example, and in the mouth 2MCH, the possible setting range of sport cut is "S", "1", "2", A circle mark is attached in advance (see Fig. 1 for piping route and cut valve arrangement). This setting display window 11 has a character code (ASCII
Code) to realize all of them, and to set and monitor only the final destination of powder for one sampling. For example, when the final destination conveyor is the S-type conveyor 9a, the setting operation is completed by setting "S" in the setting window of the mark □ of the sampling port 2MCH as shown in the figure, and "S", "1", "2". The set part of the ○ mark in the display window of “” will be displayed in yellow. The reason why there are two □ mark setting windows on the sampling 2MCH is that it is possible to set the powder destinations to the two systems of 1 and 2 at the same time as shown in Fig. 1. In this case, each □ Set "1" and "2" in the mark.

Reference numeral 21 in the PLC board 20 is a character code determination unit realized by the software of the plant controller, which inputs the character code set in the setting display window 11 and determines whether or not "S" in step S1. It is determined in step S2 whether it is "1", in step S3 whether it is "2", and in step S4 whether it is "12". Reference numeral 22 is an alarm (ALM) that informs the operator of the fact that all the steps of the character code determination unit 21 are determined to be no, that is, when a setting outside the possible setting range is made in the mouth. Reference numerals 23a to 23d denote numerical code output units that output numerical codes based on the determination result of the character code determination unit 21, and the numerical code output unit 23a outputs H00 in hexadecimal when the character code is determined to be "S".
The numeric code output unit 23b outputs the numeric code "000001" of 01, and the numeric code output unit 23b outputs the numeric code "010110" of H0016 in hexadecimal when the character code is determined to be "1". Is "2"
When it is determined that the character code is H002A, the numeric code “101010” of H002A is output. When the character code is determined to be “12”, the numeric code output unit 23d outputs H0 in hexadecimal.
The numeric code “100110” of 026 is output. Each bit of the numerical code is the control content of each cut valve of FIG. 1, that is, the lower bits in order from the exciting coil CV1742 (A), CV1742 (B), CV174.
3 (A), CV1743 (B), CV1744 (A),
Corresponding to CV1744 (B), it indicates that excitation is performed when the bit value is "1". Reference numeral 24a is an OR circuit that takes the logical sum of the judgment outputs of steps S2 and S4 of the character code judging section 21, and 24b is an OR circuit that takes the logical sum of the judgment outputs of steps S3 and S4.

25 and 26 are, in order from the cut valve arranged upstream in a unit of intake, the exciting coil and the limit switch paired with the exciting coil, which are arranged from the lower bit of the word data (16 bits) to 1 bit. It is a register unit that holds one numerical code assigned to each. That is, the register unit 25 has the numerical code output unit 23a.
Holds the numerical code output from ~ 23d,
It consists of a 16-bit register from the 0th bit to the Fth bit, but the lower 6 bits are used here, and the other upper bits are spare bits. The correspondence between the output "1" of each of the numerical code output units 23a to 23d and each bit is indicated by a dotted line, and the characters S, 1, 2, 1, 2, etc. written at each bit position are the bit concerned. Indicates that the corresponding cut valve selection system in FIG. on the other hand,
The register unit 26 holds the detection signal of the limit switch as a numerical code.
It is the same configuration as.

Reference numeral 27 is a numerical code judging unit realized by the software of the plant controller, which inputs the numerical code held in the register unit 26 and judges whether or not H0026 is set in step S11 and H0 in step S12.
01A, H002A in step S13, H0016 in step S14, step S14
In step 15, it is determined whether or not it is H0001. In addition,
In this numerical code determination flow, there is H001A that was not present when converting the character code to the numerical code, but this is due to the following reason. That is, there are four types of setting by character code, S, 1, 2, and 12, but in addition to operating the cut valves all at once by setting from the OPS board 10, the cut valves are individually (every one) on the machine side. Since it can be operated from the installed operation panel, the answer code from the limit switch is H0001, H0.
There are five types, 016, H002A, H001A, and H0026. Therefore, the setting of the OPS board 10 (for simultaneous operation) may be four basic patterns corresponding to powder destinations, but the answer needs to determine all possible cases (five kinds).

Reference numerals 28a to 28e denote the numerical code judging section 2 described above.
The character code of the result judged in each step of 7 is "1",
The output unit outputs "0". The output unit 28a is the character code S, the output unit 28b is the character code 1, the output unit 28c is the character code 2, and the output units 28d and 28e are the character code 1.
The answer code is the character code that is output as "1" because it corresponds to 2 respectively. 24c is an OR circuit that takes the logical sum of the outputs of the output parts 28d and 28e of the character code 12, 24d is an OR circuit that takes the logical sum of the output part 28b of the character code 1 and the output of the OR circuit 24c, and 24e is the character code 2 is an OR circuit that takes the logical sum of the outputs of the output unit 28c and the output of the OR circuit 24c.

Reference numeral 29 is a state display logic section for changing the display color of the mark o in the setting display window 11 depending on the state. One of the AND circuits 29a, 29b, 29c has an inverted input.
The AND circuit 29a includes a character code determination unit 21.
The setting state of the character code S determined by the above is input, and the answer state from the output unit 28a of the character code S based on the determination result of the numerical code determination unit 27 is inverted and input to the AND circuit 29b. 1 or 12
Is input via the OR circuit 24a, and the answer state of the character code 1 or 12 is input to the OR circuit 2a.
4d, and the AND circuit 29c is input with the setting state of the character code 2 or 12 via the OR circuit 24b, and the answer state of the character code 2 or 12 is input via the OR circuit 24e. To be done. The outputs of the AND circuits 29a to 29c are set in the setting display window 11 respectively.
By controlling the display windows of the character codes S, 1 and 2, the set system is displayed in yellow while the setting and the answer do not match (output "1"). Further, the display windows of the character codes S, 1 and 2 are controlled by each answer state, and when the answer state becomes "1", the display is green. That is, when the setting is completed but the valve operation is not completed (answer unanswered), it is yellow, when the valve operation is completed (answer present), it is green, and when it is not set and there is no answer, it is colorless. is there.

Reference numeral 31 is each of the AND circuits 29a to 2a.
The OR circuit which takes the logical sum of the output of 9c, that is, the output for the above-mentioned yellow display, 32 is preset with a predetermined time longer than the operating time of the cut valve, and the OR circuit 3
A timer which operates when the output of 1 becomes "1" and outputs a time-out signal when the state of the output "1" continues beyond the predetermined time, 33 operates by a time-out signal from the timer 32 and issues an alarm. This is an alarm device, and the OR circuit 31, the timer 32, and the alarm device 33 constitute the abnormality notification means 30 of the present invention.

On the other hand, 34 and 35 interposed between the PLC board 20 and the solenoid valve board 40 indicate an interface section, and the interface section 34 uses a numerical code held in the register section 25 in the PLC board 20 as an electromagnetic valve. Then, the interface section 35 transfers the numerical code from the solenoid valve board 40 to the register section 26 in the PLC board 20.
41 and 42 in the solenoid valve board 40 are register sections 43a and 43 having the same configuration as the register sections 25 and 26 in the PLC board 20.
b, 44a, 44b, 45a, 45b are solenoid valves 4a, 4 as selection means composed of an exciting coil and a cut valve.
b, 5a, 5b, 6a, 6b, output terminals for outputting drive signals, 46a, 46b, 47a, 47b, 48
a and 48b are limit switches 54 as detecting means.
It is an input terminal for inputting detection signals from a, 54b, 55a, 55b, 56a, 56b. The register unit 41 holds a numerical code input via the interface unit 34, and the numerical code is used to output the solenoid valve 4 via the output terminals 43a to 45b corresponding to each bit.
a to 6b are controlled, and the solenoid valve corresponding to the bit for which "1" is set among the bits of the numerical code is excited and driven. Further, the register unit 42 has input terminals 46a to 48b.
The detection signals of the limit switches 54a to 56b input via the are held as numerical codes, and "1" is set to the corresponding bit in which the limit switch is closed. It is assigned according to the same rule as the register unit 25 in the board 20.

Next, the operation will be described. Here, a case where the final destination system of the powder is the 1-system conveyor 9b will be described as an example. First, since the final destination system for powder is the 1-system conveyor 9b, the operator uses the setting display window 11 of the OPS board 10 to set the character code 1 in the setting window of the square mark of the sampling port 2MCH. The set character code is OPS
The character code determination unit 2 is sent from the board 10 to the PLC board 20.
It is determined that the character code is 1 in step S2 of 1.
If the operator erroneously sets the character code 7 to the place where the character code 1 should be set, all the steps of the character code determination unit 21 are determined to be no and the subsequent numerical code output is not performed. In addition to preventing malfunctions,
The alarm 22 operates to notify the operator, so that the erroneous setting can be promptly recognized and the resetting can be performed.

The judgment output of the character code 1 is output from the AND circuit 2 of the status display logic unit 29 via the OR circuit 24a.
9b and there is no answer to the inverting input yet, the output of the AND circuit 29b becomes "1", and the ○ mark in the display window corresponding to the character code 1 of the mouth 2MCH in the setting display window 11 is displayed in yellow. Becomes When the output of the AND circuit 29b becomes “1”, the timer 32 starts operating via the OR circuit 31. On the other hand, the determination output of the character code 1 is input to the numerical code output unit 23b, and the numerical code of H0016 "010" in hexadecimal.
110 ″ is output and held in the register unit 25. The numerical code held in the register unit 25 is transferred to the solenoid valve board 40 via the interface unit 34 and held in the register unit 41. In the register unit 41, When the numerical code is held, the output terminal 43b corresponding to the bit of "1",
Drive signals are simultaneously output from 44a and 45a, and the solenoid valves 4b, 5a and 6a are simultaneously excited and driven. That is,
In FIG. 1, the cut valve 4 is an exciting coil CV17.
The valve operates as shown by the solid line so that the powder flows to the pipe side to the 1-system or 2-system conveyor by the excitation of 42 (B), and the cut valves 5 and 6 are the excitation coils CV1743, respectively.
(A) and CV1744 (A) are energized, the valve operates as shown by the solid line so that the powder flows to the pipe to the 1-system conveyor 9b, and these operate simultaneously without any time difference. As a result, a route (conveyance path) through which the powder flows from one port to the 1-system conveyor 9b via the cut valves 4, 5, 6 is established.

When the cut valves 4, 5, 6 operate as shown by the solid lines, the corresponding limit switches LS1742
(B), LS1743 (A), LS1744 (A) switch contacts, that is, the limit switch 54 shown in FIG.
The switch contacts of b, 55a and 56a are closed, and these detection signals are input through the input terminals 46b, 47a and 48a, the corresponding bit of the register unit 42 becomes "1", and the hexadecimal numerical code of H0016 ". 01011
0 "is held. The numerical code held in the register unit 42 is transferred to the PLC board 20 via the interface unit 35 and held in the register unit 26. This numerical code is input to the numerical code judging unit 27. And step S
14 is determined to be a H0016 numerical code in hexadecimal, and the output unit 28b of the character code 1 is determined according to the determination result.
Output becomes "1" (answer available). This output is input to the status display logic unit 29 via the OR circuit 24d and given to the inverted input of the AND circuit 29b to change the output of the AND circuit 29b to "0", and the character code 1 of the setting display window 11 The ○ mark on the display window corresponding to changes from yellow to green. As a result, the operator can easily confirm that the route (conveyance path) to the 1-system conveyor 9b set by the character code 1 has been established, and it is also easy to constantly monitor this state.

On the other hand, when the output of the AND circuit 29b becomes "0", the operation of the timer 32 is stopped via the OR circuit 31, and the alarm device 33 does not operate. If the answer to the establishment of the route has not passed the operating time of the cut valve, the output of the AND circuit 29b remains "1" for a predetermined time or longer, so that the timer 32 outputs a time-out signal and outputs the alarm device. 33 works. As a result, the operator can determine that the operation trouble of the cut valve, the limit switch, etc. has occurred, and promptly deal with this.

As described above, according to the present embodiment, the setting of the cut valve only needs to be set with the corresponding character code only for the conveyor system of the final destination for each mouth, so that the cut valve for each mouth is set. There is no need to be aware of the layout or piping route, and the setting operation can be made extremely easy. In addition, an alarm sounds when a setting error occurs (when it is out of the setting range), and since the incorrect setting is not transmitted to the cut valve, the cut valve does not malfunction and the current state is maintained.
Malfunctions can be prevented.

The control of the operation relationship of the cut valve is as follows.
Since all the cut valves in one mouth are treated as one numerical code, the cut valves can be operated simultaneously. This has the effect of eliminating the time lag of the cut valve operation when changing the setting of the mouth during continuous operation.

Also, the answer from the limit switch after the cut valve is operated is treated as one numerical code in which bits are assigned to each mouth, and finally it is made to correspond to the character code to confirm the route establishment (answer check). Since it is used for processing such as color change display for, the operator can handle not only the setting but also the answer check and the constant display state only by the character code and the color display. In the answer check according to the present embodiment, yellow is displayed while the answer character code of the limit switch does not match the set character code, and it is changed to green when the answer of the limit switch is set. These are those in which an answer check function by changing colors and a constant monitoring function are added to the setting display window 11 to facilitate answer check and constant monitoring. Also, in order to only set and monitor the grade of the conveyor at the final destination, the setting and monitoring contents are coded, and answer check by comparing the cut valve operation setting and limit switch detection signal with the setting contents. By numerically coding a series of controls, automation can be realized simply, and the operator does not have to be aware of the arrangement of cut valves, piping routes, and their control contents, and these can be black-boxed. It becomes extremely easy for the operator to perform settings, answer checks, and constant monitoring. When this is concretely shown in the case of this embodiment, the cut valve is 3
Since there are two exciting coils and two limit switches each, the setting and monitoring items are 6 each in the conventional case.
Although it becomes an item, it becomes one item in the present embodiment, and the burden on the operator is reduced to about 1/6. Moreover, even when the settings are changed for all the mouths, the setting, cut valve operation, answer check, etc. can all be performed simultaneously, so there is no time difference until the cut valves are switched at all the mouths. be able to.

Further, when an operation trouble of the cut valve, the limit switch, or the like occurs, as can be understood from the color display monitoring described above, a signal for displaying yellow is collected (OR circuit 3).
1) By operating the timer 32 that is set for a time longer than the operating time of the cut valve, trouble signals of each cut valve, limit switch, etc. can be taken out collectively, and the alarm device 33 is activated when trouble occurs. Thus, it is possible to notify the operator or the like of the occurrence of trouble surely and early.

In this embodiment, the setting is yellow and the answer is green. However, the display color may be any color if the color rule is determined, and another display such as blinking and a monitoring method other than the color change. Very good.

Example 2. In the first embodiment described above, the PLC board 20 corresponding to the processing unit and the electromagnetic valve board 40 corresponding to the drive detection unit are different from each other in the storage board. However, as shown in FIG. By accommodating the portion corresponding to the detection unit in the same storage board (control board 60), the same effect as that of the above-described first embodiment can be obtained, and the first embodiment
2 and 3, the interface units 34 and 35 and the register units 41 and 42, etc. can be omitted, and accordingly, the time from setting operation to cut valve operation and answer check can be shortened, and the device is simple, And there is an effect that it can be constructed at low cost. This can be easily realized as a result of characterizing setting and monitoring and characterizing control in the present invention.

By the way, in each of the above embodiments, the same numerical code can be used for the same cut valve arrangement pattern for each sampling. Furthermore, if the destination system for each mouthpiece is the same, the combination with the character code is also the same, so it is only necessary to provide an automation circuit for each pattern type, and the automation circuit is also simplified. In each of the above embodiments, the character code determination unit 21 and the numerical code determination unit 2
Although the case where 7 is realized by the software of the plant controller has been described, these may be configured by a logic circuit.

[0040]

As described above, according to the present invention, the setting means for setting the final destination system by using the corresponding character code, and the numerical value indicating the control content of the selecting means by judging the set character code. Since it has a control means for converting into a code and controlling each selection means based on this numerical code, it is only necessary to set the final destination system with a corresponding simple character code and the desired final destination system from one mouth It is possible to set the transport path leading to, and the setting is facilitated, which has the effect of reducing the burden on the operator. Further, since the set character code is determined and then converted into the numerical code, the setting is not transmitted to the selecting means even if the setting is mistaken, so that the malfunction of the selecting means can be prevented.

The control means associates the control contents of all the selection means in one sampling with each bit of one numerical code, and converts the value of each bit of one numerical code converted from the character code. Since the selection means are controlled at the same time based on this, it is possible to realize the simultaneity of the operations of the selection means, and there is an effect that there is no time difference until all the selection means are switched when the setting is changed.

Further, the control means makes the output of each detecting means paired with each selecting means correspond to each bit of one numerical code according to the same rule as the selecting means, and judges the numerical code indicating the output of each detecting means. By confirming the confirmation of the establishment of the conveyance path corresponding to the set character code by making it correspond to the character code, not only the setting but also the confirmation of the establishment of the conveyance path, constant monitoring, etc. are all in the character code. Since the operator does not have to be aware of the arrangement of the selection means, the conveyance path, and the control contents thereof as a black box, the burden is further reduced.

Further, an abnormality notifying means for notifying an abnormality is provided if the set character code does not match the determination result of the numerical code indicating the output of each detecting means within a predetermined time after the character code is set. Therefore, when the operation trouble of the selecting means or the detecting means occurs, the abnormality notifying means is activated, and the operator can be notified of the occurrence of the operation trouble surely and early, so that it is possible to promptly deal with this.

Further, since the processing section and the drive detection section which constitute the control means are constructed in the same storage board, the interface required when the processing section and the drive detection section are stored in separate storage boards. This eliminates the need for a section and a register section, shortens the time from setting operation to the operation of the selection means, and confirmation of the establishment of the transport path, and has the effect of simplifying the apparatus and at a low cost.

[Brief description of the drawings]

FIG. 1 is a diagram showing an arrangement of cut valves and a piping route according to a first embodiment of the present invention.

FIG. 2 is an OPS in the control device according to the first embodiment of the present invention.
It is a block diagram which shows a board and a PLC board.

FIG. 3 is a configuration diagram showing an electromagnetic valve disc in the control device according to the first embodiment of the present invention.

FIG. 4 is a configuration diagram showing a control device according to a second embodiment of the present invention.

FIG. 5 is a diagram showing an arrangement of cut valves and a piping route in a conventional example.

[Explanation of symbols]

1 Mill Roll Machine 2 Rocker 3 Shifter 4, 5, 6 Cut Valve 4a, 4b, 5a, 5b, 6a, 6b Solenoid Valve (Selecting Means) 8 Piping 9a-9e Conveyor 10 OPS Panel (Setting Means) 11 Setting Display Window 20 PLC Panel (processing section constituting control means) 30 Abnormality notification means 40 Electromagnetic valve panel (drive detection section constituting control means) 54a, 54b, 55a, 55b, 56a, 56b Limit switch (detection means) 60 Control panel (control means)

Claims (5)

(57) [Claims] 1. A selection means for selecting one of the transport paths at a plurality of branch points of a transport path branching from one mouth to reach a plurality of final destination systems, and an operation state of the selection means. A detection means is provided, and by controlling each selection means provided at the plurality of branch points, a conveying path from one mouth to a desired final destination system is set, and based on the output of each detection means. In the carrier path control device for confirming the establishment of the carrier path, the setting means for setting the desired final destination system using the corresponding character code and the character code set by this setting means are determined, and the corresponding And a control means for converting each of the selecting means into a numerical code indicating the control content of the selecting means necessary for establishing the conveying path to the final destination system and controlling each selecting means based on the numerical code. apparatus. 2. The control means associates the control contents of all the selection means corresponding to one mouth with each bit of one numerical code, and the value of each bit of one numerical code converted from the character code. 2. The conveyance path control device according to claim 1, wherein a plurality of corresponding selection means are controlled simultaneously based on the above. 3. The control means associates the output of each detection means paired with each selection means with each bit of one numeric code according to the same rule as the selection means, and outputs the numeric code indicating the output of each detection means. 3. The conveyance path control device according to claim 2, wherein a confirmation display for establishing the conveyance path corresponding to the character code set by the setting means is displayed by making a determination and corresponding to the character code. 4. An abnormality notification for notifying an abnormality when the set character code does not match the determination result of the numerical code indicating the output of each detecting means within a predetermined time after the setting of the character code by the setting means. The conveyance path control device according to claim 3, further comprising means. 5. The control means determines the character code set by the setting means, converts the character code into a numerical code indicating the control content of the selection means necessary for establishing a transport path to the corresponding final destination system, and A processing unit for determining the numerical code indicating the output of the detection means and corresponding it to the character code to display the confirmation of the establishment of the transport path corresponding to the character code set by the setting means, and the conversion from the character code. The control unit controls the selection unit based on the numerical code, and the drive detection unit outputs the output of each detection unit as a numerical code. The processing unit and the drive detection unit are configured in the same storage board. The transport path control device according to claim 1.