JPH03167601A - Sequence control method - Google Patents

Abstract

PURPOSE:To attain the sequence control regardless of brands and processes by performing the sequence control with the operating conditions of each brand used as a parameter so as to secure a linking action between a unit sequence and another unit sequence or a program. CONSTITUTION:The raw materials (a) and (b) are supplied to the tanks 101 - 103 through the ports (a) - (e), respectively. Then the steam is supplied to the tanks 101 - 103 so as to raise the temperatures of these tanks. The tanks 101 - 103 are stirred by the motors (j) - (l), and the products are taken out of the tanks 101 - 103 via the ports (m) - (o). Then the treating materials are sent to the tank 101 from the tank 102, to the tank 101 from the tank 103, and to the tank 102 from the tank 103 via the port (p) - (f) respectively. The unit sequences which start the control of those operations for each product are registered to a brand control computer 29 together with the parameters (temperatures, stocking amounts, etc.) of those sequences, and a stopping sequence. The parameters are loaded into a control computer 20 in the operating order. Then the devices are selectively operated with each push of an operation button.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the production of articles, etc., in which various units such as a unit for charging raw materials, a temperature raising unit for heating the charged raw materials, etc. are sequentially driven under predetermined conditions. The present invention relates to a method of performing so-called no-kense control that performs stopping, etc.

Prior Art This type of sequence control method is disclosed in, for example, Japanese Patent Application Laid-Open No. 59-1
Publication No. 25403, Japanese Unexamined Patent Publication No. 62-08
This is disclosed in Publication No. 06 and the like.

F7 [is a sequence control method for the Banotchi process, in which equipment operation sequences corresponding to each device on a one-to-one basis and a process sequence that combines multiple equipment operation sequences for each process are provided, making it possible to combine multiple process sequences. This system attempts to process the process sequences created for each process in chronological order, and is characterized by initializing the state of the equipment controlled by the process sequence at the beginning of each process sequence. , Banochinke〉・
The system is characterized in that numerical values specifying the operating state or operating conditions of the device are created using temporary variables, and the temporary variables are replaced with specific numerical values during actual operation.

The latter is specified based on a set of equipment information specified by the designation organization, as well as equipment constituting general-purpose equipment for producing Banotchi data and piping connection information between the equipment stored in the first storage machine. By associating the at least one type of equipment located between the set of equipment with the specific equipment constituting the general-purpose equipment for panochi production, the plurality of similar processes stored in the second storage mechanism A program for sequence control of a specific process among the plurality of similar processes is generated from a non-generating general-purpose module for sequence control, and the previous sequence of each of the plurality of similar processes is generated by a specified mechanism. By specifying the set of equipment through the specification mechanism and, if necessary, specifying the type of one-purpose module to be generated (if there are multiple types of general-purpose modules to be generated), it is possible to easily and easily The sequence control program for the bassona production process can be easily created with less risk of error.

Problems to be Solved by the Invention Conventional methods create a process sequence for each process for all brands to be manufactured, or manage the brands using operating conditions such as temperature, pressure, etc. as parameters for the combination of process sequences for each brand. By loading the process into the control computer at the start of production and processing the process sequence in series, brand-name operation is realized. Therefore, it was necessary to design a sequence that took into account the processes for all brands, and if new brands were added and new processes were added, there was the problem of having to create Wang Cheng/-kens.

In any of the conventional techniques, complicated preliminary work and the like are required during actual operation in a production process of a wide variety of products in small quantities.

This invention does not take into consideration the process of all brands manufactured and does not create a sequence for each process. A process consists of a combination of units, and the combination information is parameterized. A unit sequence is a sequence created for each minimum functional operation, and its purpose is to provide a control method that can perform sequence control that depends on the equipment and does not vary depending on the brand or process.

Means for Solving the Problems This invention provides a series of operating programs from the start of operation to the completion of operation of Uni.1, which is the minimum functional unit unique to equipment that does not depend on brand or process. 7. Tokens individually {ya's uni, 1. sequence or other blogs →
Each unit is provided with a
The operating conditions of each brand are imported as parameters into the unit controller, a central management device manages a plurality of unit control devices that perform sequence control according to the imported parameters, and the operating conditions are set from the central management device. This is a sequence control method.

Example An embodiment of the present invention will be described below with reference to the drawings.

FIG. 2 (A.) shows an example of one tank in a manufacturing apparatus to which this invention is applied, in which 1 is an A raw material charging unit, 2 is a B raw material charging unit, 3 is a temperature raising unit, and 4 is a circulation unit. 5 is a stirring unit, 6 is a vacuum unit, and 7 is a timer unit.

Valves 1 11 2 are connected to the preparation units 1 and 2, and raw material A or Brt4 is introduced into the processing tank 10 by opening these valves IL12.

The temperature raising unit 3 is, for example, a heating/burning vent 13 that is installed around the processing tank 10 , and controls the supply of steam to the heating/burning vent 13 by opening and closing the control valve 17 . Perform temperature control.

The amount of raw material A charged is detected by the flow meter 15, and the amount of raw material B
The amount of raw material charged is detected by a flow meter 16, and the temperature of the processing tank 10 is detected by a temperature sensor 14.

The rotation speed of the stirring unit 5 is detected by a tachometer 18.

The degree of vacuum in the vacuum unit 6 is detected by a vacuum sensor 19.

Data from each sensor is input to the control device shown in FIG. 1(A).

The sequence control system of the present invention is as shown in FIG.
Control devices 201, 202, 203 provided corresponding to 03
and a brand management computer 29 as a central management device that centrally manages these control devices 201, 202, and 203. Each of the control devices 201, 202, and 203 has the same configuration, including a control computer 20 using a microcomputer (or a normal computer or other data processing device), and a pressure inlet and a position provided in each of the uni-notes 1 to 6. A relay module 23 is provided as an input/output interface for transmitting and receiving signals between a control computer 20 and sensors 21 such as limit switches, level switches, switches, etc. that regulate the . Furthermore, the sequence control station L includes an operator console 26 including a keyboard 24 for inputting data from an operator and a CRT 25 for displaying input/output data and the like. Stock management computer 2
9. A brand management computer 29 including a keyboard 27 for inputting various parameters (described in detail later) associated with the brand to be produced, and a CRT 28 for displaying parameters, etc. is provided.

The control computer 20 includes a unit sequence (ffi after details) 30 that controls the sequence operation of each unit described above, an operation scheduler 31 that controls which unit/can is used, and a control signal when the unit/can is operated. It has a flag area 32 etc. that stores a certain flag.

The units mentioned here are the aforementioned A raw material preparation unit 1,
These are the B raw material preparation unit 2, the heating unit 3, the circulation unit 4, the stirring unit 5, the vacuum unit 6, the timer unit 7, etc., and as mentioned above, the operation of the equipment is controlled by the minimum functional operation unit. In addition to the set of , there is also a sequence created for each minimum functional operation unit called uni, t/-. Therefore, units are constructed that depend on the equipment and do not depend on the product type.

A unit sequence is a block that executes a series of programs as shown in FIG. 4, and FIG. 3A shows a unit sequence for a preparation unit as an example.

Each unit has its own functions, including the ability to assign start flags, stop flags, interrupt flags, and completion flags.

When the start flag is on, the unit sequence starts.

The assignment of flags may be different depending on whether it is automatic or manual.

The stop flag is on and the unit sequence stops.

The interrupt flag is on and the unit sequence is interrupted.

The completion flag is on and the unit sequence or completion conditions are met.

In particular, the start/stop flag/completion flag is closely related to the driving scheduler; the start flag and stop flag are used for starting and stopping the unit sequence, and the completion flag is used for sidewalk conditions.

To explain in detail about Fig. 3 (A), it is determined whether the start flag is on or not at the steno knob SO, the completion flag is reset at the steno knob Sl, and the completion flag is reset at the steno knob S.
2, it is determined whether the start flag has been reset or set, and if it is a cell, the process proceeds to Stennob S9, and if it is a reseno, the actual preparation of the material to the tank (for example, 101) is determined from the setting preparation 1 at Stennob S3. It is determined whether they are greater or equal, and if they are greater or equal, proceed to Stenop S9 and close valve ■1; on the other hand, if not, proceed to Stenop S4,
It is determined whether the suspension flag is on. Stenobu S if off
At step 4, it is determined whether or not the interruption flag is on.

The process advances to Stenop S8 for which the interruption flag is on, and the hull 11 (or 12) is closed in Stenop S8. If the interruption flag is off, proceed to Stenop S5,
It is checked whether or not the LS-1 is not OV, that is, whether the wave surface in the tank is greater than or equal to LSi. Tank 1
If the liquid level of 01 is LS-1 or higher, Stenobu S2
If the number of appearances is below, the process proceeds to step S6, reads the number of appearances written in the number of appearances memory, and sets the amount of the preparation parameter specified in the number of appearances to the amount of preparation to the tank 101, and controls the control device of the tank lot. 201 into the data vanofer 33X. After that, proceed to the steno knob S7 and open the valve 11.

When the control proceeds to the steno knob S9, the valve 1l is set to full control, and the steno knob S10'' turns on the start flag, resets the interrupt flag, and turns on the completion flag, thus ending the series of sequences.

According to this invention, a unit similar to the above-mentioned program/
- a can is provided in the control computer 20 for each unit. FIG. 4 shows a flowchart in which unit, to, and -kens are expressed in -1) manner as used in all units.

As can be easily seen from the comparison between Fig. 3 and Fig. 4, the steno knob is common to each unit, and the steno knob S6
can be rewritten at will from the outside using its contents as parameters.

Nao unit sequence steno knob s 2, s 3,
Each flag in S4 is a signal obtained from the Ike program that cooperates with these units/one unit, such as the operation of the push button suinochi, the sensor, the riminoto suinochi, etc., and these signals are sent to the flag area 32 by the above-mentioned Ike program. written. And this flag area 3
2 is read in units of units.

Next, each parameter will be explained.

In the unit sequence, the elements that depend on the product type are all parameterized, and when activated by the operation scheduler or manual operation, execution is performed by referring to the instrument parameters. An example of the instrument parameters is shown in Table 1 below.

Table 1 The instrument parameters for each type are stored as brand data together with operation schedule data, for example, when an operator
A) Prescription 34 or S brand 'F3 containing various data about the brand to be produced as shown in (B)
'l Human-powered and centrally managed by two physical computers.
When a quality is selected at the start of operation, it is downloaded to the brand management computer 29 or 'JI'J computer 20 as brand data.

Next, the driving schedule data will be explained.

The operation schedule data is a data file that controls which units and tokens are started and stopped in what order. For example, as shown in Figure 6, it contains the steno knob number, operation process number, unit name, and each unit and token. The process at which the sequence should be started and stopped is downloaded from the stock management computer and written in the schedule data banofer 33Y, which is a RAM, in a table format. In FIG. 5, ● indicates a start flag, X indicates a stop flag, and O indicates a completion flag, indicating the step condition. Each flag and process number are stored in memory areas MIM2, M as shown in FIG.
3, to 14 are encouraged.

For example, in the example of FIG. 5, the process of step knob number 1 is started first, the unit/-ken A is operated, the start flag Fl'l< of the unit A is turned on, and then the unit of the unit A is activated. When the stop flag F2 of unit A is turned on after the specified process is completed, the next step is to move to step number 2, and step number 7 - unit B, C, E is turned on.
are startup flags F3, F4. Read F5 and start up, each unit y
} When the predetermined steps B and C are completed, the process moves to the step 3 and the unit D is activated. ．． The process step condition is constantly monitored for each process by referring to the operation schedule data, and if the conditions are met, the start flag of the unit/case to be started in that process is turned on, and the stop flag of the unit/case to be stopped is turned on. Turn on. All the signals in the control computer can be used as step conditions, and the algorithm is not limited by the combination of AND conditions and OR conditions. In addition, in the operation scheduler, the stenop number is set for each process. , and operating process No. The information is managed and utilized for operation monitoring, process display, etc.

In the Banotchi plant, an operation scheduler is provided for each tank, but it can basically be used in continuous plants as well, and is a general-purpose program.

The operation mode of the operation scheduler includes automatic operation and process operation. Automatic operation transfers the process only based on the sidewalk conditions of the process, and process operation moves the process until the sidewalk flag is turned on even if the sidewalk conditions of the process are met. will not be migrated. Therefore, a process operation flag and a process progress flag are provided as flags unique to the operation scheduler.

In the above structure, the unit 30 in the control computer 20 has a preparation unit sequence 301, a rising J=unit sequence 30-T2, and a unit sequence 30-T2, as shown in FIG.
A cooling unit sequence 303 and a transfer unit sequence 30-4 are provided. A program corresponding to the flowchart shown in FIG. 4 is written in each unit sequence.

Control in the production of a single type of product using a single tank Now, for example, the control method when performing sequence control for manufacturing a product of type A using a preparation unit and a temperature raising unit will be described.

Regarding the mass preparation unit, the preparation amount of raw material a (even if s
When r t o o is entered into the brand management computer 29, this amount of preparation is inputted from the operator's console 26 at the start of operation. The data will be written in the area provided as follows.

For the marco heating unit, the temperature reached is 185°C.
1 is inputted to the brand management computer 29 in the same manner as above, the reached temperature increase is written in the area provided corresponding to the temperature increase unit of the data vanifer 33X.

Other necessary conditions, such as the f-sensor number, the number of the opening/closing valve, the number of the starting/stopping pump or motor, etc. are inserted into the data vanofer 33X.

On the other hand, as shown in FIG. 7, the operation scheduler 31 inputs the step conditions, steno knob number, process number, and start/stop flag number required for production of variety A to the brand management controller 29. Data of II v1'. Btl
"f:" At 1 o'clock, according to the product name input from the operator's console 26, data is written into the data bath sofa 33Y using the RAM 33, for example, by process number as shown in FIG.

During actual operation, each unit sequence is the steno knob S3, S5, S6, S7,
In S 3, S9, SIO, data vanofa 33X
For example, in the heating unit, the relevant area is read and the data is imported into the program shown in FIG. 3(B).

When the control system is started after performing the above settings, the preparation unit sequence 30-1 whose steno knob number is set to "l" is selected first. When the process progresses to the steno knob S3, the temperature raising unit sequence is activated, and the steno knob St shown in FIG. 3(B) is activated.
Execute the program from to SIO, and step SIO
When the flag entry is completed, the operation scheduler 3l selects and starts the timer unit sequence 7.

Control when multiple types of products are manufactured using multiple tanks, one type per tank Figure 2 (B) shows an example of manufacturing multiple types of products using multiple tanks shown in Figure 2 (A). show. In this example, raw material i4a is charged into the tank 101 from port a.

Raw material b is charged from boat b to tank 101, and raw material b is charged from boat c to tank 102. - Charge raw material C, charge raw material d from port d to tank 102, charge raw material e from boat e to tank 103, and charge raw material f from boat f to tank 103.

In addition, steam is introduced from port g to raise the temperature of tank 101, steam is introduced from port h to raise the temperature of tank 102, and steam is introduced from boat i to tank 103 to raise the temperature of tank 103. Do warm.

j is stirring of tank 101; k is stirring of the tank 102; (2) indicates stirring of the tank 103.

The product in tank 101 is taken out from port m, the product in tank 102 is taken out from boat n, and the product in tank 103 is taken out from boat 0.

Transfer the treated substance to tank 1102 through port 01, transfer the treated substance from tank 103 to tank 101 via port q, and transfer the treated substance from tank 103 to tank l○2 via boat r. to be transferred.

For each product type, the unit sequence to start and its parameters (temperature, preparation amount, etc.) and the unit sequence to stop are registered in the brand computer 29.

For each product type, the completion of the unit sequence and other process states (current values of temperature and pressure) are registered as step conditions using connectors A N D and O R.

Download brand information. Enter the product name, LOT number, and production amount for each product in the order in which you plan to operate the product.
Download to 9.

After manufacturing one type of product, you can choose whether to run the machine continuously to continuously manufacture the next product, or press the start button once and restart the machine while checking. be.

Driving operations It is possible to start, interrupt, and end operation for each tank.

It is possible to start/stop unit sequences individually.

Monitoring of operation The CRT 28 of the brand computer 29 displays the name of the executed product, LOT number, process number, unit sequence start @/P+stop status, unit sequence completion status, etc. for each tank.

Control in this case is the same as in the case of manufacturing a single product for each f9H. However, each parameter is set as follows using the appearance counter method.

That is, as shown in Figure 9, in the first process of the treatment process in one tank, 10 (]! of raw t4 is charged, in the 10th process 200 t2 is charged, and in the second process, the inside of the tank is It is assumed that the temperature is raised to 70°C and then raised to 90°C again in the 11th step.

In this case, the data shown in Table 2 is sent from the brand management computer 29 to the data vanofer 33X of the control computer.
Enter the data shown in Table 3 as instrument parameters.

Table 2: Hashometer in the control computer Table 3: Instrument parameters As can be seen from Tables 2 and 3, the number of appearances indicating how many times the preparation unit and heating unit have been used, and the operating temperature at that number of appearances are written. The number of times each appearance appears and the corresponding preparation 1 and heating temperature are written in the instrument parameter.

In this example, the number of appearances (first time) in step 1, step 2
(1st time), the number of times the preparation unit appears in step 1o (2nd time), and the number of times the heating unit 7 appears in step 11 (
2nd time) is written to the data buffer, and the instrument parameters are IOOC for the first time and 200Q for the second time, and 70'C for the first time and 90'C for the second time as the temperature raising unit parameters.
°C is written.

When the manufacturing process shown in FIG. 9 is started by pressing the start button with the data set as described above, data indicating the number of appearances or the first time, for example, the number 7x, is displayed in the step S6 of the preparation unit sequence. At the same time, the set preparation amount tooc corresponding to this river is read out from the instrument parameter storage area of the data vanofer 33, and this value 10c) f2 is also read out from the steno knob S6.
will be written to. The control for charging the raw material of IOON into the tank is executed according to the unit sequence shown in FIG. 3(A).

Further, the number of appearances 1 and the corresponding temperature increase temperature statement 70''C are written in the steno knob S6 of the temperature increase unit sequence.Then, control is executed in the same manner as the operation of the single tank described above.

The daily fee of 100e {! When the character is trained in the shi and the king level 1 is completed, the set-up charge 200Q corresponding to the second appearance count is written in step S6 of this preparation unit 7-ken.

Similarly, when the first temperature rise is completed, the second temperature rise temperature of 90°C is written in step 77'S6 of the unit sequence of the temperature rise unit.

Then, in step 10, the charging unit is activated again to charge 200N of raw material into the tank, and in step 11, the temperature raising unit is activated to raise the temperature in the tank to 900C.

Make the same settings as above on the brand computer 29 or each tank 10.
1, 102, 103 respective control computers 2
01, 202, and 203 for each product type, and the manufacturing process for multiple types can be executed simultaneously.

As mentioned above, the operation control of multiple tanks can be performed using
As shown in FIG. 10, temperature is raised and agitation is carried out using the raw materials t, ↓a, and b in the tank 101 as shown in FIG. 10. After thinking about it, the 10,000 yen (soak) 102 is heated to heat and stirred, and then transferred to the tank 101, where they are combined to produce variety A. and f are charged, heated and stirred, and on the other hand, after finishing the treatment of raw material C in tank 102, raw material d is heated and stirred, and then combined with the treated material in tank 103. Sequence control settings can be easily made.

Storing numerical values indicating the number of appearances as data in this manner is convenient for prototyping articles, etc. For example, assume that the number of appearances of a certain mechanism is stored as 11-1 in step 1, and the number of appearances of a certain mechanism is stored as "2" in step 7. Even if you finish process 1, stop the manufacturing system once in the middle of steps 2 to 6, and restart from process 7, you can read the number of appearances in process 7, which is "2", to determine the operating conditions of the mechanism as described above. By reading out the operating conditions stored corresponding to "2", step 7 can be executed correctly.

Note that it is also possible to perform sequence control by starting a required unit sequence by independent operation without using the operation scheduler while the operator observes the operating state of each unit.

According to the control device of the present invention, a plurality of tanks can be controlled in the following manner using the brand management monitor 29 and one control device (for example, 201) as shown below.

As shown in FIG. 11, tanks 102 and 103 are connected to tank 101. It is also connected to tank 102 or tank 103.

These three tanks 101, 102, and 103 each have the same configuration as shown in FIG. 2(A), and are controlled by one control device 201.

Type A, type B, and type C are registered in order in the brand management computer 29 as shown in FIG. 12. For example, variety A is first treated in tank 103, then in tank 101.
will be forwarded to and processed. If there is a continuous instruction in the brand computer 29, an empty tank to be used is found, and the next variety is automatically operated in that tank. For example, in the treatment of variety B, when the treatment in tank 102 is completed,
The control device 201 determines whether the tank 103 is empty, that is, whether it is not performing any processing and is stopped, based on the width described below, and if it is detected that the tank 103 is empty, the tank 102 is
The process automatically shifts to the process of sending all processed materials to the tank 103.

If there is no continuous instruction, the operation for processing the subsequent variety will not be performed unless the operation for all tanks of the preceding variety is completed.

The empty space in the tank is detected by the method described below.

As shown in FIG. 13, the final process number for one tank, ie, 101, is transferred from the brand management function viewer 29 to the RAM 33 of the control device 20+.

The scheduler determines that the corresponding tank is empty when the process number being executed becomes equal to the final process number and the sidewalk conditions for that process are satisfied. According to the above example, this determination result is stored in the execution area of RA>133 corresponding to tank 101. be done.

Then, Suke/Yura controlling another tank, for example tank 102, reads the empty space of Pa I 0 1 and selects the next item i [
5) Transfer the information to the execution area and perform the operation. FIG.
3 shows the data written in. The data in Figure 12 is
It is stored in area 12.3 of the data bath sofa 33N. Furthermore, the execution area 33N1 in Theta Hanofa 33
The data is transferred to Sugeshura, and Sugeshura starts and stops the unit sorcence based on that data.

Figure 15 shows the operation time chart.Timing a
, b. FIG. 16 shows the storage status of the types of execution areas corresponding to each of c.

By setting various data as above,
For example, operation is started by pressing a start button or the like. Note that the setting of instrument parameters and downloading to the control device are the same as those described in the previous embodiment. According to the product data written in the execution area at timing a, processing for product A is carried out in tank 101, 103, and processing for product B is performed in tank 102. At timing b, seven pieces of data of type B are newly written in the row 103 in the execution area, and at 410 1.102, processing is continued based on the data at timing a. At timing C, the execution area is newly loaded with data of type C for tank 102, and data for tank 101, tank 103
Then, processing continues based on the data at timing b.

The processing operations for each of the above types A, B, and C are summarized as follows.

At timing a, data in the execution area 33M of the data bath sofa 33 is read. For example, tank 102
For this, type B is specified, and the instrument parameters used for the process of type B, information on startup, stop, number of appearances, etc. are read from 33N to 33M and executed. The same applies to the other tanks 101 and 103.

At timing b, the intermediate product of type A processed in tank 103 is taken out from tank l○3 to tank 101. Regarding the tank 103, type B is designated, and the instrument parameters, startup, stop, number of appearances, etc. used for processing of type B are read out from 33N to 33M and executed.

Processing of type A is continued in tank 101, and processing of type B is continued in tank 102.

At timing C, intermediate products of type B processed in tank 102 are taken out from tank 102 to tank 103. Regarding the tank 102, the product type C is specified, and the instrument parameters, startup, stop, number of appearances, etc. used for processing the product type C are read out from 33N to 33M and executed.

Processing of type A is continued in tank 101, and processing of type B is continued in tank 103.

Effects of the Invention As described above, according to the present invention, sequence control can be easily programmed by using a unit sequence even when a plurality of plants (tanks 101, 102, 103 in the embodiment) are controlled by a control computer.

Furthermore, the invention that uses the number of appearances technology makes it easier to set parameters for each unit sequence, and even if sequence control is interrupted midway, the parameters can be determined based on the number of appearances when sequence control is restarted, so the correct parameters can be set. Can be used accurately.

In addition, this invention considers the operation of equipment to be the result of a simple operation with minimal capacity, and realizes this by combining unit sequences with no sequences created in the minimum functional unit, so that unit sequences can be parallelized. Brand operation is performed by processing, but 1) If you create an RF sequence program, you can easily register and change parameters, rearrange processes, change product types, etc., as long as the process does not change. .

2) Even people who do not understand sequence programming can easily rearrange processes, add products, etc.

3) Even if there is a change in equipment, only the related unit sequence needs to be changed, and the technical work associated with the change is efficient.

5) It is easy to conduct various C trials related to production, and it is effective in shortening cycle time and improving quality.

6) At the control system design stage, it is not necessary to design with product-specific considerations in mind; this will have an effect on multi-product production equipment.

7) The concept is non-pull, and maintenance of sequence blocks is easy.

[Brief explanation of the drawing]

FIG. 1(A) is a schematic diagram of the device used for the control method of the present invention, and FIG.
), Figure 2 (A) and (B) are diagrams each showing an example of equipment to which the present invention is applied, and Figure 3 (AXB) is a diagram showing the preparation unit and temperature rise. A flowchart showing each unit and unit of the unit, number one. Figure 4 shows general Nayunino 1 and Nokens 7.
The low chart, FIG. 5 and FIG. 6 are diagrams showing an example of the Etsuru Scheduler, and FIG. 7 is a diagram showing an example of the storage area of the Driving Scheduler. 4. Diagram showing the storage area of parameters used in 3.
Figures 9 and 10 are diagrams showing an example of operation, Figure 11 is a diagram showing the connection relationship of tanks in another embodiment, and Figure 12 is a diagram showing the operation sequence of each tank in the embodiment of Figure 11. Figure 13 is a diagram showing data stored in each tank, Figure 1
FIG. 4 is a diagram showing the storage state of the RAM, FIG. 15 is a time chart showing a driving failure, and FIG. 16 is a diagram showing the situation in the execution area of the RAM. I A raw material preparation unit, 2 B general material preparation unit, 34 notes, 4... Circulation unit, 5. Stirring unit, 6. Vacuum unit, 7... Timer unit, 10 Processing tank, 1 1. 1 2...Valve, 13.
・・Heating jacket, 14.・Temperature change sensor, 15.
16--Flow rate totalizer, 17--Funtrol valve, 18--Tachometer, 1
9... Vacuum sensor, 20... Control computer, 21
・Sensor, 22...Manufacturer, ・Relay mosule,
24 ・Keyhole, CRT, 26 Operator console, keyboard, 28 ・CRT, ・Brand management computer, unit sequence, ・・Operation scheduler, flag area.・RAM prescription data

Claims (4)

[Claims] (1) A unit sequence, which is a series of operation programs from the start of operation to the completion of operation of a unit, which is the minimum functional unit unique to equipment that does not depend on brand or process, is operated individually in conjunction with other unit sequences or other programs. It is established for each unit, and the operating conditions of each brand are incorporated into the unit sequence as parameters.
A sequence control method characterized in that one or more unit controllers that perform sequence control of one or more brands according to imported parameters are managed by a central management device, and the operating conditions are set from the central management device. . (2) The control method according to claim (1), wherein a plurality of brands are processed simultaneously by a single control device. (3) The central control device monitors the product type name, lot number, process number being executed, and start, stop, and completion states of the unit sequence set in each unit control device. Control method. (4) When the same unit is used multiple times in the manufacturing process of the same brand of product or different brands of products, the number of appearances, which is the order in which the unit is used, and the operating conditions of the unit in this order are centrally managed. 2. The control method according to claim 1, wherein the control method is stored in a storage means of the device, and the number of appearances is specified in the unit sequence.