JPH11143508A - Sequence control system and method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate stepping management even without profound knowledge about the sequence control system and also to facilitate needed program development and maintenance. SOLUTION: This sequence control system 10 has a controlling part 1 being the center of the system. The part 1 is provided with a unit sequence part 11 which executes a unit sequence being an operation program which performs a series of controls and measurements from the operation start to the end of a unit that divides a series of manufacturing processes and sets them so that the manufacturing processes may be the greatest common divisor about a manufacturing process that is common to kinds to be manufactured, a parameter buffer 13 which stores necessary parameters and an operation scheduler part 12 which assigns an operation condition parameter to a unit sequence in the part 11 that becomes an object according to a single step parameter stored in the buffer 13 and carries out the unit sequence.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sequence control system for controlling a manufacturing process for each product type and product, and a method therefor.

[0002]

2. Description of the Related Art A sequence controller is used to automatically control the types and amounts of various raw materials, reaction temperatures, and sequential manufacturing processes depending on the type of product to be manufactured.
In this sequence control device, in order to be able to handle a plurality of types, the manufacturing process is divided into a plurality of units which are process units such as charging, heating, and stirring, and the type manufactured using each unit is divided. Of the manufacturing process is performed. In this sequence control device, there has been proposed a sequence control device in which the above-described unit is used as a minimum functional unit unique to equipment which does not depend on a product type or a process, and a series of manufacturing processes is realized by a combination of unit sequences which are operation programs of the unit. (Japanese Unexamined Patent Publication No.
70005, JP-A-3-167601). FIG. 11 shows an example of a relationship between a manufacturing process and a unit in the above-described sequence control device. In the above-described sequence control device, the unit is the minimum functional unit unique to the equipment independent of the product type and the process.
And the unit sequence corresponding to the unit 2, and the “heating” step is realized by the combination of the unit sequences corresponding to the unit 3, the unit 4, and the unit 5. The setting of the relationship between the manufacturing process, each unit, and the start / end as shown in FIG. 11 is generally performed by an operator of the sequence control device.

[0003]

However, in the above-described sequence control device, it is necessary to set a plurality of units to be assigned to one manufacturing process. Therefore, the operator of the sequence control device is limited to those who have sufficiently grasped the relationship between the manufacturing process for each type and the set unit. Therefore, it is difficult for a person who understands only the manufacturing process to make settings as shown in FIG. 11, and it is not easy to manage the progress of the process. Furthermore, in the above-described sequence control device, since the unit is the minimum functional unit unique to the equipment independent of the type and process, a large number of unit sequences, which are operation programs for the unit, must be prepared. In addition, since the unit sequence does not match the manufacturing process, when the unit sequence needs to be corrected due to a defect or the like, it is difficult to recognize the changed portion. Therefore, much effort is required for program development and maintenance.

The present invention has been made in view of such circumstances. 1) It is easy to perform setting and step management for product manufacturing without deep knowledge of a sequence control device. 2) An execution program is provided. An object of the present invention is to provide a sequence control system and a method thereof that facilitate program development and maintenance by minimizing the number of unit sequences.

[0005]

In order to achieve the above-mentioned object, according to the first aspect of the present invention, as to a manufacturing process for manufacturing a plurality of varieties, a process common to the varieties is included in the manufacturing process. A unit sequence unit that includes a unit that is set by dividing a series of manufacturing processes so as to be a maximum common promise, and executes a unit sequence that is an operation program for performing a series of control and measurement from the start to the end of each unit. A parameter buffer storing a step parameter relating to the execution order of the unit and an operating condition parameter which is a parameter depending on a type of the unit, and a target unit sequence according to the step parameter stored in the parameter buffer. The operation condition parameters are assigned to a unit sequence in the A sequence control system, characterized in that a driving scheduler unit to execute the Sequence.

[0006] The invention described in claim 2 is the invention according to claim 1.
The sequence control system according to claim 1, wherein the unit sequence detects establishment of a step condition using measurement information of physical properties of a product or an intermediate product obtained by executing the unit sequence. And According to a third aspect of the present invention, in the sequence control system according to the first aspect, the sequence control system further includes an information processing terminal, and uses general-purpose spreadsheet software operating on the information processing terminal. The step parameters and the operating condition parameters are set, and the set parameters are stored in the parameter buffer in a format that can be stored in the parameter buffer.

Next, in the invention according to claim 4, a series of manufacturing steps is divided so that the manufacturing step is the greatest common pledge with respect to a manufacturing step common to a kind of a unit to be manufactured. A unit sequence, which is an operation program for performing a series of control and measurement from the start to the end of operation of the unit, is prepared, and the operating condition parameters, which are parameters depending on the execution order of the unit and the type of the unit, In which the operating condition parameters are assigned to the unit sequence, and the unit sequence is executed.

[0008] The invention described in claim 5 is the invention according to claim 4.
The sequence control method according to any one of claims 1 to 3, wherein the unit sequence detects establishment of a step condition using measurement information of a physical property of a product or an intermediate product obtained by execution of the unit sequence. And According to a sixth aspect of the present invention, in the sequence control method according to the fourth aspect, the execution order and operation condition parameters of the unit are set by general-purpose spreadsheet software, and the set execution order and operation are set. It is characterized in that condition parameters are used.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a sequence control system and a sequence control method according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a configuration diagram of a sequence control system according to an embodiment of the present invention. As shown in FIG. 1, the sequence control system 10 includes a control unit 1, a display unit 3, and an information processing terminal 4. Here, the control unit 1 is a center for performing sequence control of a series of manufacturing processes of a product type to be manufactured. Further, the control unit 1 includes a unit sequence unit 11, an operation scheduler unit 12, and a parameter buffer 13. In the unit sequence unit 11,
A unit sequence, which is an operation program for performing a series of control and measurement from the start to the end of the operation of the unit, is performed. When the unit sequence in the unit sequence unit 11 is executed, the valves 6a, the flow rate sensors 6b, and the temperature sensors 6c, which are the minimum functions of the manufacturing facility 6, are provided.
The necessary minimum functions are controlled and the sequence is advanced. The unit sequence unit 11 in the control unit 1
The functions of the operation scheduler unit 12 are realized by a CPU (central processing unit) and an execution program for realizing each function.

[0010] Here, the "unit" is set by dividing a series of manufacturing processes from the start to the end of the production of the product type such that the production process is the greatest common promise with respect to the production process common to the product type to be produced. Shall be. In addition, the reason why the “manufacturing process is the greatest common promise” and a specific example of the common manufacturing process will be described separately. Further, the parameter buffer 13 is constituted by a storable device or device such as a RAM, and associates a step parameter relating to an execution order of units in a type to be manufactured with an operation condition parameter which is a parameter depending on the type in the unit. To remember. The operation scheduler unit 12
In accordance with the step parameter stored in the parameter buffer 13, an operation condition parameter is assigned to a target unit sequence in the unit sequence unit 11, and the unit sequence is executed.

The display unit 3 is a CRT (Cathode Ray Tube)
And a liquid crystal display device for displaying the progress of the manufacturing process. The information processing terminal 4 is a general-purpose device such as a personal computer. The information processing terminal 4 is used for setting a step parameter and a driving condition parameter using general-purpose spreadsheet software operating on the apparatus. The parameters set by the information processing terminal 4 are sent to the control unit 1 via a LAN (Local Area Network) 5 and stored in the parameter buffer 13 in a format that can be stored in the parameter buffer 13.
In this way, by using general-purpose spreadsheet software, the operator of the sequence control system can set and change parameters using familiar spreadsheet software, and the operability of the system is improved. Furthermore, by using general-purpose spreadsheet software, it is possible to reduce the cost of creating a processing unit for setting parameters.

Next, the step parameter and the operating condition parameter stored in the parameter buffer 13 will be described. FIG. 2 is a diagram for explaining an example of a step parameter and an operation condition parameter required in the sequence control system of FIG. In the sequence control system according to the present embodiment, a description will be given assuming that a series of manufacturing processes for a product type can be realized by listing the units required for the product type in time series. Each unit is assigned a unique unit number,
A series of manufacturing steps are realized by designating the unit number. If the number of steps in the manufacturing process is up to “n”, the step parameter is set up to step n, and thereafter, a blank space or a value indicating a blank space is set.

The operating condition parameters are parameters depending on the type of the target unit, and are set for each step in association with the unit number. For example, assuming that the unit number specified in step 1 is a unit relating to “preparation”, this “preparation” unit requires at least a set value relating to the supply amount, and that value is set. The number of setting values required for each unit differs. Therefore, the column for setting the setting value is at least the maximum number (for example, “m”) required in the unit.
). However, if the number of required setting values is less than m, a blank or a predetermined value indicating a blank is set. Note that the step parameter and the operating condition parameter are collectively referred to as “parameters”.

Next, the relationship among the unit sequence unit 11, the operation scheduler unit 12, and the parameter buffer 13 which constitute the control unit 1 of FIG. 1 will be described in more detail with reference to FIG. As shown in FIG. 3, the unit sequence unit 11 includes unit sequences 11a to 11a corresponding to each unit.
11n is set. Note that the sequence of the special unit 11n is for terminating the operation. The parameter buffer 13 stores a unit number 21 which is a step parameter described in FIG. 2 in order of steps and set values 22 and 23 which are operation condition parameters of the unit.
Are stored in association with each other. Note that the parameter buffer 13 of FIG. 3 shows an example where the maximum number of set values is “2”. The operation scheduler unit 12 includes a step management process unit 12a that manages the progress of each unit sequence. The management process unit 12a assigns set values 22 and 23, which are operation condition parameters, to the unit sequence in the unit sequence unit 11 in accordance with the step parameter 21 stored in the parameter buffer 13, and The unit sequence specified by the unit number 21 as a parameter is executed.

Next, the operation of the step management unit 12a in the control section 1 will be described with reference to FIGS. here,
FIG. 4 is a diagram showing the operation of the step management unit 12a, and FIG. 5 is a flowchart showing the operation of the step management unit 12a. Step management unit 12
In a, the operation is started on condition that the activation flag is set to "ON" (step S1). Although not shown in the figure, the control unit 1 has a flag area referred to by the unit sequence unit 11 and the operation scheduler unit 12. The flag area includes a start flag, an end flag, and the like as shown in FIG. It is assumed that there is a flag such as a completion flag. Next, a variable “i” representing a step number is initialized (step S2). Note that the initial value of the step number here is "
The unit number corresponding to the step number "i" is acquired by referring to the area of the parameter buffer 13 where the step parameter is stored as shown in Fig. 4 (step S3).

Then, the set value corresponding to the step number "i" is obtained by referring to the area in which the operating condition parameters are stored (step S4). Step S3
The setting value acquired in step S4 is passed to the unit sequence corresponding to the unit number acquired in step S4, and the unit sequence is executed (step S5). In the example of FIG. 4, the unit number acquired in step S3 is "3",
An example is shown in which a set of set values is passed to a unit sequence corresponding to a unit number 3 and executed. In order to know the status of the unit sequence being executed, the end flag is set to “O”.
It is determined whether or not N has been reached, and if the condition is satisfied, the process proceeds to the next step (step S6), and is incremented by adding "1" to a variable "i" indicating the step number (step S7). It is determined whether or not all the steps have been completed by determining whether or not the unit number is set in the step parameter area of the step indicated by the variable “i” (step S8). If not, step S3
And the process of the next step is performed. On the other hand, when the processing of all the steps is completed, the unit sequence for the units n and 11n relating to the operation end in FIG. 4 is executed, and the processing is ended after the completion flag is turned “ON” ( Step S9).

Next, the sequence control system and the method thereof according to the present embodiment will be specifically described with reference to examples of manufacturing equipment and manufacturing processes of product types. FIG. 6 is a diagram illustrating an example of a configuration of a manufacturing facility controlled by the sequence control system. The manufacturing facility shown in FIG. 6 is an example in which four facilities a to d are combined to form one manufacturing facility. Here, the equipments a to c have the same function, and are equipments capable of charging, heating, stirring, cooling, and transferring two raw materials. In addition, equipment d includes three small items, stirring, vacuuming, cooling,
Equipment that can be transported.

Next, in the case of using the manufacturing equipment shown in FIG. 6, an example of a series of manufacturing processes of a product type manufactured by the manufacturing equipment will be described, and this example will be used to define the “unit” in the present embodiment. A description will be given of "a series of manufacturing steps are divided and set so that the manufacturing steps have the greatest common promise with respect to the manufacturing steps common to the types to be manufactured". FIG. 7 shows FIG.
FIG. 6 is a diagram showing an example of manufacturing processes of certain three types in the case of the manufacturing facility of FIG. FIGS. 7A to 7C show a series of manufacturing steps from the start to the end of the production of the types 1 to 3, respectively.

Here, FIG. 7A showing a series of manufacturing processes of the product type 1 will be briefly described. First, the A material and the B material are charged in a predetermined amount by the apparatus a (reference numeral 41), and the charged raw materials are stirred for a predetermined time (reference numeral 42) to prepare a small item a. Then, a predetermined amount of the C raw material and the D raw material are charged in the apparatus b (reference numeral 43), and the charged raw materials are cooled to a predetermined temperature and agitated for a predetermined time (reference numeral 44), thereby preparing small b items.

Then, a predetermined amount of the E raw material and the F raw material is charged in the apparatus c (reference numeral 45), and the charged raw materials are heated to a predetermined temperature and stirred for a predetermined time (reference numeral 46).
In this way, the small item c is prepared. When the preparation of the small articles a to c is completed, the small articles a, b small articles,
(c) Stir, evacuate, and cool at a predetermined value to emulsify the charged small articles (reference numeral 47).
8). When the emulsification is completed, the liquid is discharged from the device d by the transfer function (reference numeral 49).

Similarly, a series of manufacturing processes for the product type 2 is shown in FIG.
A series of manufacturing processes of the product type 3 are shown by reference numerals 61 to 67 in FIG. here,
Comparing the series of manufacturing processes of the three types, the manufacturing processes 41 and 42 of the type 1 and the manufacturing process 5 of the type 2 are different.
The production steps 1 and 52 and the production steps 61 and 62 in the type 3 are production steps common to the three types produced. Then, the following manufacturing steps 43, 53 and 63 are added in the manufacturing steps before and after these manufacturing steps, and in the example of FIG.
Manufacturing steps 41, 42, 43 and manufacturing steps 51, 52, 53
When the manufacturing processes 61, 62, and 63 are compared, the type 1 and the type 2 match, but the type 3 does not match. As described above, regarding the manufacturing process common to the types of products to be manufactured,
Summarizing the other manufacturing processes before and after this manufacturing process in units up to the point where the manufacturing process does not coincide with the addition of the manufacturing process is referred to as “maximum common promise”.

The setting of this unit is first set so as to be "the greatest common promise" for more types. In this example, first, the units are set so as to be "the greatest common promise" for the three types. After the completion of the process, the units which are "the greatest common promise" are set for the two types, and finally, the units are set by integrating the remaining manufacturing processes of each type into a continuous manufacturing process. In the example of FIG. 7, the above-described manufacturing process 4
In addition to the production steps 1 and 42, the production steps 51 and 52, and the production steps 61 and 62, the production steps 48 and 49, the production steps 56 and 57, and the production steps 66 and 67 are common production steps. These are the manufacturing processes 47 and 5 which are other manufacturing processes before and after.
5 and 65, respectively, and manufacturing steps 47, 48 and 49, manufacturing steps 55, 56 and 57 and manufacturing steps 65, 66 and 67
At first glance, they do not seem to match. However, in the manufacturing processes 47, 55, and 65, it is assumed that all of the small items a to c prepared in the devices a to c are charged into the device d. Assuming that the charged amount from the apparatus is "0", the manufacturing processes 47, 48, 49, the manufacturing processes 55, 56, 57 and the manufacturing processes 65, 66, 67 satisfy the "largest common promise".

In the manufacturing process common to the three types,
Since the division of “maximum common promise” (symbols 71 and 74) has been completed, the process is shifted to the “maximum common promise” of the two types, and the manufacturing processes 43 and 44 of the type 1 and the manufacturing process 53 of the type 2 are performed. , 54 satisfy this condition, and the manufacturing processes 45 and 46 in the type 1 and the manufacturing processes 63 and 64 in the type 3 satisfy this condition, which is the “maximum common promise” in the manufacturing process common to the two types. Since the division has been completed, the process proceeds to unit setting by integrating the units into a range of continuous manufacturing processes, but there is no such unit in this example. The results of dividing a series of manufacturing steps so that the manufacturing steps are the greatest common pledge are shown by reference numerals 71 to 74 in Fig. 7. Note that, for each product type, the same reference numerals are assigned to the divided parts. Fruit represents the same manufacturing process.

FIG. 8 shows, in FIG. 7, a series of manufacturing processes common to the types of products to be manufactured, using a unit set by dividing a series of manufacturing processes so that the manufacturing process has the greatest common promise. FIG. 4 is a view showing a manufacturing process of the first embodiment. Here, the unit names are a small item manufacturing step 71, b small item manufacturing step 72, c small item manufacturing step 73, and emulsification step 74.

FIG. 9 is a diagram showing the relationship among the unit numbers, unit names, and set values of each unit shown in FIG.
Taking the unit name “a accessory preparation step” as an example, the unit number is “1” and three set values are required. The three set values are “A raw material charging amount”, “B raw material charging amount”, and “stirring time”, and are “Kg” and “K”, respectively.
g ”and“ minutes. ”Similarly, FIG.
The relationship between the unit number, the unit name, and the set value of another unit is shown.

FIG. 10 is a diagram showing an example of a flow of a unit sequence which is an operation program of a unit in the small accessory preparation step. This flow will be briefly described. First, in order to charge the raw material A, the valve for charging the raw material A is turned "ON" (step S11). Then, it is determined whether the charged amount of the raw material A has reached the set value by using the measurement result of the sensor of the apparatus a (step S12). Step S1
When the condition 2 is satisfied, the valve for charging the raw material A is turned off to terminate the charging of the raw material A (step S13). Similarly, in steps S14 to S16, a process for charging the B raw material is performed.

Next, when the charging of the materials A and B is completed, the stirrer is operated (step S17). next,
It is determined whether the stirring time has reached the set value (step S
18) When the set value is reached, the operation of the stirrer is stopped to end the stirring (step S19). Through the above steps, the preparation of the small item a is performed.

In the unit sequence for preparing the small item a shown in FIG. 10, an example of the flow in which the timer is used to determine the end of the stirring as shown in step S18 has been described. However, the temperature, weight, pressure, liquid level, etc. are determined by the sensor. It is desirable to detect the establishment of the step condition based on physical properties. This is because by actively utilizing the physical properties, it is possible to surely grasp whether the physical property values of the intermediate products and the like have reached the target, and the product quality is stabilized. Also,
This is because the next process can be performed as soon as the physical property value reaches the target, which leads to a reduction in the time cycle, as compared with the step condition determination based on the timer.

A unit sequence is similarly prepared for other units. In preparing the unit sequence, if the physical property can be used when determining the stepping condition, the preparation is performed so as to use the physical property. When each type is manufactured, parameters required for manufacturing each type are set in the information terminal device 4, and the operation scheduler unit 12 executes a unit sequence in accordance with the set parameters.

As described above, with respect to the manufacturing process common to the types to be manufactured, a unit serving as a processing unit is set by dividing a series of manufacturing processes so that the manufacturing process has the greatest common promise. By preparing a unit sequence, which is an operation program for performing a series of controls and measurements from the start to the end of the operation of the unit, the correspondence between the set unit and the manufacturing process can be easily understood. Therefore, setting for product manufacturing and step management can be easily performed without deep knowledge of the sequence control system. In addition, since a series of manufacturing processes are divided so as to be "the greatest common promise", the number of units is reduced to the minimum necessary, the number of unit sequences which are execution programs can be reduced, and the correspondence between the manufacturing processes and the unit sequences is improved. Easy to take. Therefore, program development and maintenance become easy. Even if a new product type is manufactured, the same manufacturing process will be used as long as the same manufacturing equipment is used. In many cases, it can be dealt with only by changing the condition parameters, and the labor required for maintenance can be reduced.

In the present embodiment, it has been described that a series of manufacturing steps can be realized by setting the step parameters in series. However, the variety 1 shown in FIG.
As an example, a small item preparation step 71, b small item preparation step 7
2. There is no problem if the c accessory preparation process 73 operates in parallel.
Therefore, the setting of parameters and the operation of the step management unit 12a in the operation scheduler unit 12 may correspond to parallel processing. In the sequence control system according to the present embodiment, the unit sequence directly operates the valve 6a, the flow sensor 6b, the temperature sensor 6c, and the like, which are the minimum functions of the manufacturing equipment 6. This is converted to a unit sequence unit 11 for executing a unit sequence.
A program group for operating the valve 6a, the flow rate sensor 6b, the temperature sensor 6c, and the like, which are the minimum functions of the manufacturing equipment 6, is provided between the manufacturing facility 6 and the unit sequence to operate the minimum function of the manufacturing equipment 6. This program group may be called and used. This is because even a unit using a plurality of the minimum functions of the manufacturing equipment can reduce the processing load in the unit sequence. In addition, the independence when operating the minimum functions unique to the equipment having high commonality can be ensured, and the design and program development can be facilitated.

In the sequence control system 10 according to the present embodiment, the control unit 1 and the information processing terminal 4 are connected by the LAN 5 as shown in FIG. 1, but the present invention is not limited to this. Instead, the controller 1 and the information processing terminal 4 may be directly connected. In the sequence control system 10 according to the present embodiment, the display unit 3 has been described as displaying the progress of the manufacturing process and the like. However, the control unit 1 provides the information processing terminal 4 with the progress of the manufacturing process and the like. May be sent, and such information may be displayed on the information processing terminal 4.

[0033]

As described above, according to the sequence control system and method of the present invention, the following effects can be obtained. According to the first or fourth aspect of the present invention, a series of manufacturing steps are divided so that the manufacturing step is the greatest common pledge with respect to a manufacturing step common to a product type. Is set. This makes it easier to understand the correspondence between the set unit and the manufacturing process, thereby facilitating setting and step management for product manufacturing without deep knowledge of the sequence control system. In addition, since a series of manufacturing processes is divided so as to be “the greatest common promise,” the number of units is minimized, the number of unit sequences that are execution programs can be reduced, and the correspondence between manufacturing processes and unit sequences is taken. This makes program development and maintenance easier. Even if a new product type is manufactured, the same manufacturing process will be used as long as the same manufacturing equipment is used. In many cases, it can be dealt with only by changing the condition parameters, and the labor required for maintenance can be reduced.

According to the second or fifth aspect of the present invention, the unit sequence utilizes the step condition by utilizing the physical property measurement information of the product or intermediate product obtained by executing the unit sequence. Is established.
As a result, it is possible to reliably grasp whether the physical property values of the intermediate products and the like have reached the target, and to stabilize the product quality. In addition, as compared with the step condition judgment based on the timer, the next process can be performed as soon as the physical property value reaches the target,
It leads to shortening of the time cycle. According to the third or sixth aspect of the present invention, the execution order and operating condition parameters of the units are set by general-purpose spreadsheet software, and the set execution order and operating condition parameters are used. This allows the operator of the sequence control system to set and change the parameters using familiar spreadsheet software, thereby improving the operability of the system. Furthermore, by using general-purpose spreadsheet software, it is possible to reduce the cost of creating a processing unit for setting parameters.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a sequence control system according to an embodiment of the present invention.

FIG. 2 is a diagram for explaining an example of a step parameter and an operation condition parameter required in the sequence control system of FIG. 1;

FIG. 3 is a diagram showing the control unit of FIG. 1 in more detail;

FIG. 4 is a diagram showing an operation of a step management unit.

FIG. 5 is a flowchart showing the operation of the step management unit.

FIG. 6 is a diagram illustrating an example of a configuration of a manufacturing facility controlled by a sequence control system.

FIG. 7 is a diagram showing an example of a manufacturing process of a certain product in the case of the manufacturing equipment of FIG. 6;

FIG. 8 is a diagram showing a series of manufacturing processes of each type by a set unit.

9 is a diagram showing an example of a parameter buffer of a unit in the case of FIG. 8;

FIG. 10 is a diagram showing an example of a flow of a unit sequence for a unit in a small item preparation step.

FIG. 11 is a diagram showing an example of a manufacturing process in a conventional example of a sequence control device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Control part 3 Display part 4 Information processing terminal 5 LAN 6 Manufacturing equipment 10 Sequence control system 11 Unit sequence part 12 Operation scheduler part 13 Parameter buffer 12a Step management unit

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Toyoyuki Sato 1-3-7 Honjo, Sumida-ku, Tokyo Inside Lion Corporation (72) Inventor Shigeru Yasuda 1-3-7, Honjo, Sumida-ku, Tokyo No. Lion Corporation

Claims (6)

[Claims] In a manufacturing process for manufacturing a plurality of types, a process common to the types includes units set by dividing a series of manufacturing processes so as to be the greatest common promise of the manufacturing process. A unit sequence unit that executes a unit sequence that is an operation program for performing a series of control and measurement from the start to the end; a step parameter relating to an execution order of the unit; and an operation condition parameter that is a parameter depending on a type of the unit. A parameter buffer storing the operation condition parameter to a unit sequence in the target unit sequence unit according to the step parameter stored in the parameter buffer, and an operation scheduler unit for executing the unit sequence. Sequence characterized by having Your system. 2. The unit sequence detects whether a step condition is satisfied by using measurement information of physical properties of a product or an intermediate product obtained by executing the unit sequence. Item 2. The sequence control system according to Item 1. 3. The sequence control system further includes an information processing terminal, wherein the step parameter and the driving condition parameter are set using general-purpose spreadsheet software operating on the information processing terminal, and the set parameter is set. 2. The sequence control system according to claim 1, wherein the parameter control unit stores the parameter in a format that can be stored in the parameter buffer. 4. A series of manufacturing steps are divided and set so that a unit which is a process unit is common to a variety of products to be manufactured, so that the manufacturing step has the greatest common promise. Prepare a unit sequence which is an operation program for performing a series of control and measurement up to the end, according to an execution order of the unit, and an operation condition parameter which is a parameter depending on a kind in the unit, the operation condition parameter is added to the unit sequence. And executing the unit sequence. 5. The unit sequence detects whether a step condition is satisfied, using measurement information of physical properties of a product or an intermediate product obtained by executing the unit sequence. Item 5. The sequence control method according to Item 4. 6. The execution order and operation condition parameters of the unit are set by general-purpose spreadsheet software, and the set execution order and operation condition parameters are used. Sequence control method.