US20180095447A1 - Program development supporting apparatus, program development supporting method, and program development supporting program - Google Patents

Program development supporting apparatus, program development supporting method, and program development supporting program Download PDF

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Publication number
US20180095447A1
US20180095447A1 US15/438,669 US201715438669A US2018095447A1 US 20180095447 A1 US20180095447 A1 US 20180095447A1 US 201715438669 A US201715438669 A US 201715438669A US 2018095447 A1 US2018095447 A1 US 2018095447A1
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United States
Prior art keywords
program
ladder diagram
circuit element
connection line
dimensional coordinates
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Abandoned
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US15/438,669
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English (en)
Inventor
Kenjiro NAGAO
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Omron Corp
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Omron Corp
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Assigned to OMRON CORPORATION reassignment OMRON CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: Nagao, Kenjiro
Publication of US20180095447A1 publication Critical patent/US20180095447A1/en
Abandoned legal-status Critical Current

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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/4097—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by using design data to control NC machines, e.g. CAD/CAM
    • G05B19/4099—Surface or curve machining, making 3D objects, e.g. desktop manufacturing
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]
    • G06F30/30—Circuit design
    • G06F30/39—Circuit design at the physical level
    • G06F30/392—Floor-planning or layout, e.g. partitioning or placement
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
    • G05B19/056—Programming the PLC
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/4097—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by using design data to control NC machines, e.g. CAD/CAM
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F8/00—Arrangements for software engineering
    • G06F8/30—Creation or generation of source code
    • G06F8/34—Graphical or visual programming
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F8/00—Arrangements for software engineering
    • G06F8/40—Transformation of program code
    • G06F8/41—Compilation
    • G06F8/44—Encoding
    • G06F8/443—Optimisation
    • G06F8/4434—Reducing the memory space required by the program code
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F8/00—Arrangements for software engineering
    • G06F8/40—Transformation of program code
    • G06F8/51—Source to source
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/10—Plc systems
    • G05B2219/13—Plc programming
    • G05B2219/13052—Display of ladder diagram
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/36—Nc in input of data, input key till input tape
    • G05B2219/36038—Ladder program for plc, using functions and motion data

Definitions

  • the invention relates to a technique for storage of a ladder diagram program.
  • program developers create the ladder diagram program on a personal computer or the like, as disclosed in Patent Literature 1. Then, the program developers output the ladder diagram program from the personal computer or the like to the industrial controller.
  • Patent Literature 1 Japanese Patent Publication No. 2009-265750
  • the invention provides a technique for storage of the ladder diagram program, which is capable of suppressing the data capacity.
  • a program development supporting apparatus of the invention includes a calculation part and a storage part.
  • the storage part stores a ladder diagram editing program and a ladder diagram program that has been edited.
  • the calculation part executes the ladder diagram editing program to edit the ladder diagram program and stores the ladder diagram program in the storage part.
  • the calculation part assigns two-dimensional coordinates to a ladder diagram.
  • the calculation part detects two-dimensional coordinates and a type of a circuit element included in the ladder diagram and detects two-dimensional coordinates of a vertical connection line included in the ladder diagram.
  • the calculation part stores the circuit element and the vertical connection line in association with the two-dimensional coordinates respectively in the storage part.
  • the position of the circuit element, the position and length of the vertical connection line, and the horizontal connection lines connected thereto in the ladder diagram are represented by the two-dimensional coordinates of the circuit element and the vertical connection line. Accordingly, if only the type of the circuit element and the two-dimensional coordinates of the circuit element and the vertical connection line are stored, the ladder diagram program is restored and the data capacity is suppressed as compared with the case of using drawing materials.
  • the ladder diagram program can be stored with the data capacity suppressed.
  • FIG. 1 is a schematic configuration diagram of the personal computer including the program development supporting apparatus according to an embodiment of the invention.
  • FIG. 2 is a diagram for illustrating the concept of the data format when the ladder diagram program is stored.
  • FIG. 3 is a diagram showing the original drawing of the ladder diagram program shown in FIG. 2 .
  • FIG. 4 is a diagram showing an example of the data when the ladder diagram program is stored.
  • FIG. 5 is a flowchart showing the main flow of the ladder diagram storing method according to an embodiment of the invention.
  • FIG. 6 is a flowchart showing various detection processes for storing a more specific ladder diagram program.
  • FIG. 1 is a schematic configuration diagram of a personal computer including a program development supporting apparatus according to an embodiment of the invention.
  • a personal computer 10 includes a program development supporting part 11 , an operation input part 12 , a communication control part 13 , and a display part 14 .
  • the operation input part 12 is a mouse or a keyboard
  • the display part 14 is a liquid crystal display, etc., for example.
  • the communication control part 13 performs control over communication with an industrial controller.
  • a ladder diagram program is outputted to the industrial controller (not shown) via the communication control part 13 .
  • the ladder diagram program is edited by the program development supporting part 11 , stored in a predetermined data format, and outputted to the industrial controller in the data format.
  • the program development supporting part 11 corresponds to the program development supporting apparatus of the invention, and includes a calculation part 111 and a storage part 112 .
  • the storage part 112 stores various program groups including a ladder diagram editing program 21 .
  • the calculation part 111 is composed of a CPU (Central Processing Unit), etc., for example, and executes the ladder diagram editing program 21 stored in the storage part 112 . Thereby, a ladder diagram editing screen is displayed on the display part 14 for a program developer to edit the ladder diagram program with use of the operation input part 12 .
  • the calculation part 111 Upon accepting an operation input of storage (save) via the operation input part 12 during execution of the ladder diagram editing program 21 , the calculation part 111 stores the edited ladder diagram program in a ladder diagram storage part 120 of the storage part 112 . At this time, the ladder diagram program is stored in the predetermined data format obtained by using the following storing method.
  • FIG. 2 is a diagram for illustrating the concept of the data format when the ladder diagram program is stored.
  • FIG. 3 is a diagram showing an original drawing of the ladder diagram program shown in FIG. 2 .
  • FIG. 4 is a diagram showing an example of the data when the ladder diagram program is stored.
  • FIG. 3 is merely an example and the configuration of the ladder diagram is not limited thereto.
  • the ladder diagram includes a left bus and a right bus.
  • the ladder diagram further includes circuit elements, horizontal connection lines, and a vertical connection line. The number of the circuit elements, the horizontal connection lines, and the vertical connection line is determined according to the content of the control to be achieved by the ladder diagram.
  • the circuit elements are disposed between the left bus and the right bus, and any of other circuit elements, the left bus, and the right bus is connected by using the horizontal connection lines and the vertical connection line.
  • the connection determines the order of the control to be achieved by the ladder diagram.
  • the types of the circuit elements are determined by the shapes of the circuit elements.
  • the circuit elements (variables) var 1 and var 2 are contacts respectively and the circuit element (variable) var 5 is a coil.
  • the circuit element (variable) represented by a rectangle is a function or a function block, and is a MOVE function in FIG. 3 .
  • the left bus side of the circuit element (variable) var 1 is connected to the left bus via one horizontal connection line, and the right bus side of the circuit element (variable) var 1 is connected to an EN terminal of the MOVE function via one horizontal connection line.
  • An ENO terminal of the MOVE function is connected to the circuit element (variable) var 5 via one horizontal connection line, and the right bus side of the circuit element (variable) var 5 is connected to the right bus via one horizontal connection line.
  • the circuit element (variable) var 2 is disposed on the lower side of the circuit element (variable) var 1 .
  • the left bus side of the circuit element (variable) var 2 is connected to the left bus via one horizontal connection line, and the right bus side of the circuit element (variable) var 2 is connected to the vertical connection line via one horizontal connection line.
  • the vertical connection line is connected to the right bus side of the circuit element (variable) var 1 and the right bus side of the circuit element (variable) var 2 via the horizontal connection lines respectively.
  • the circuit element (variable) var 3 is connected to an In terminal of the MOVE function, and the circuit element (variable) var 4 is connected to an Out terminal.
  • the left bus, the right bus, the circuit elements, the horizontal connection lines, and the vertical connection line of the ladder diagram are represented by two-dimensional coordinates.
  • the value of X increases as it gets closer to the right bus.
  • the value of X is sequentially added every time the circuit element is detected.
  • the vertical direction of the ladder diagram is set as a Y axis direction.
  • the X coordinate of the left bus is defined as “0,” and the name (var 1 , etc.) of the circuit element (variable) and the coordinates of the circuit element (variable) are stored in association with each other. Moreover, the type (contact, etc.) of the circuit element (variable) is also stored in association with the name (var 1 , etc.) of the circuit element (variable) and the coordinates of the circuit element (variable).
  • the data format is as shown in FIG. 4 .
  • the ladder diagram program is stored based on text data, for example.
  • the name of the circuit element (variable), the type of the circuit element (variable), and the coordinates are recorded in association in the text data.
  • the name of the circuit element (variable), the type of the circuit element (variable), and the coordinates are collectively recorded in a line.
  • the name and coordinates of the function or the function block are collectively recorded in a line, and in the subsequent line, the name of each terminal and the connection target are recorded sequentially for each terminal respectively.
  • each circuit element is two-dimensionally arranged with reference to the uppermost position of the left bus, and each circuit element is stored in association with the coordinates thereof. Therefore, when the text data as shown in FIG. 4 is used, the ladder diagram program as shown in FIG. 3 can be easily restored.
  • the circuit elements (variables) connected to the function or the function block are recorded as accessory elements of the function or the function block. Accordingly, in comparison with separately detecting these circuit elements (variables) and acquiring the two-dimensional coordinates to provide individual lines for these circuit elements (variables), the method of the invention can reduce the data capacity.
  • FIG. 5 illustrates the processes described above in a flowchart.
  • the flowchart of FIG. 5 shows the main flow of the ladder diagram program storing method according to an embodiment of the invention.
  • Step S 11 the program development supporting part 11 detects the vertical connection line from the edited ladder diagram program and detects the two-dimensional coordinates of the vertical connection line.
  • the vertical connection line because which part of the ladder diagram is the vertical connection line has been stored when the ladder diagram program is edited, it may be used. Then, by setting the X axis and the Y axis with the uppermost position of the left bus of the ladder diagram as the origin, as described above, the two-dimensional coordinates can be easily detected. At this time, the horizontal connection lines are also detected in the same manner as the vertical connection line.
  • Step S 12 the program development supporting part 11 detects the circuit elements (variables) and detects the types and the two-dimensional coordinates thereof.
  • the detection of the circuit elements (variables) and the types like the vertical connection line and the horizontal connection lines, which part of the ladder diagram is the circuit element (variable) has been stored when the ladder diagram program is edited, and the type of the circuit element (variable) has been associated. Therefore, it may be used. Then, by setting the X axis and the Y axis with the uppermost position of the left bus of the ladder diagram as the origin, as described above, the two-dimensional coordinates can be easily detected.
  • the detection of the vertical connection line and the horizontal connection lines and the detection of the circuit elements (variables) are not necessarily performed in this order and may be performed at the same time.
  • Step S 13 the program development supporting part 11 associates the circuit elements (variables) and the vertical connection line with these two-dimensional coordinates and stores them.
  • the stored data is realized by the text data format that is small in capacity.
  • the ladder diagram program is stored with a small capacity.
  • FIG. 6 is a flowchart showing various detection processes for storing a more specific ladder diagram program.
  • Step S 201 the program development supporting part 11 detects the horizontal connection lines from the ladder diagram and lists up the horizontal connection lines. At this time, the program development supporting part 11 lists up the horizontal connection lines that are connected to the left bus sequentially from the upper side to the lower side of the ladder diagram.
  • Step S 202 when detecting that the list of the horizontal connection lines is not empty (S 202 : NO), the program development supporting part 11 moves on to Step S 203 .
  • Step S 203 the program development supporting part 11 sets the horizontal connection line at the beginning (first) of the list as a current horizontal line.
  • Step S 204 the program development supporting part 11 detects the circuit element that is connected to the right bus side (+X side) of the current horizontal line and sets the circuit element as a current circuit element.
  • Step S 205 if the program development supporting part 11 detects that the left bus side ( ⁇ X side) of the current horizontal line is connected to the vertical connection line (S 205 : YES), the program development supporting part 11 moves on to Step S 206 . On the other hand, if the program development supporting part 11 detects that the left bus side ( ⁇ X side) of the current horizontal line is not connected to the vertical connection line (S 205 : NO), the program development supporting part 11 moves on to Step S 210 .
  • Step S 206 the program development supporting part 11 detects whether the current horizontal line is the minimum element of the vertical connection line. If the program development supporting part 11 detects that the current horizontal line is the minimum element of the vertical connection line (S 206 : YES), the program development supporting part 11 moves on to Step S 207 . On the other hand, if the program development supporting part 11 detects that the current horizontal line is not the minimum element of the vertical connection line (S 206 : NO), the program development supporting part 11 moves on to Step S 208 .
  • Step S 207 the program development supporting part 11 sets Y (current element), which is the Y coordinate of the current circuit element (variable), to the minimum Y coordinate in the group of the circuit elements (variables) on the ⁇ X side of the vertical connection line.
  • Step S 208 the program development supporting part 11 sets Y (current element) to the maximum Y coordinate in the group of the circuit elements (variables) on the +X side of the vertical connection line.
  • Step S 209 the program development supporting part 11 sets the X coordinate of the current circuit element (variable), which is X (current element), to a value obtained by adding “1” to the X coordinate of the circuit element (variable) on the left bus side ( ⁇ X side) of the vertical connection line.
  • Step S 209 the X coordinate of the circuit element (variable) that is connected to the vertical connection line on the left bus side ( ⁇ X side) is determined.
  • Step S 210 the program development supporting part 11 sets the two-dimensional coordinates (X, Y) of the current circuit element (variable), which is connected to the vertical connection line on the left bus side ( ⁇ X side), to (X (current element), Y (current element)) that have been determined in Step S 207 or Step S 208 and Step S 209 .
  • the program development supporting part 11 sets the two-dimensional coordinates (X, Y) of the current circuit element (variable), which is connected to the vertical connection line on the left bus side ( ⁇ X side), to the value obtained by adding “1” to the X coordinate of the circuit element (variable) adjacent to the left bus side ( ⁇ X side) of the current circuit element (variable), and the Y coordinate of the circuit element (variable) adjacent to the left bus side ( ⁇ X side) of the current circuit element (variable).
  • Step S 211 the program development supporting part 11 detects whether the right bus side (+X side) of the current circuit element (variable) is connected to the vertical connection line. If the right bus side (+X side) of the current circuit element (variable) is connected to the vertical connection line (S 211 : YES), the program development supporting part 11 moves on to Step S 212 . If the right bus side (+X side) of the current circuit element (variable) is not connected to the vertical connection line (S 211 : NO), the program development supporting part 11 moves on to Step S 221 .
  • Step S 212 if the program development supporting part 11 detects that the current circuit element (variable) is on the left bus side ( ⁇ X side) of the vertical connection line and the Y coordinate is maximum in the group of the circuit elements (variables) connected to the vertical connection line on the left bus side ( ⁇ X side) (S 212 : YES), the program development supporting part 11 moves on to Step S 231 .
  • the program development supporting part 11 detects that the current circuit element (variable) is on the left bus side ( ⁇ X side) of the vertical connection line and the Y coordinate is not maximum in the group of the circuit elements (variables) connected to the vertical connection line on the left bus side ( ⁇ X side) (S 212 : NO), the program development supporting part 11 moves on to Step S 202 .
  • Step S 221 the program development supporting part 11 updates the current horizontal line. Specifically, the program development supporting part 11 sets the horizontal connection line on the right bus side (+X side) of the current circuit element (variable) as a new current horizontal line. After updating the current horizontal line, the program development supporting part 11 returns to Step S 204 .
  • Step S 231 the program development supporting part 11 performs an extension process of the horizontal connection line and moves on to Step S 232 .
  • Step 5232 the program development supporting part 11 lists up the horizontal connection lines on the right bus side (+X side) of the vertical connection line and moves on to Step S 202 .
  • the two-dimensional coordinates of the circuit element (variable) can be detected reliably.

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Software Systems (AREA)
  • Automation & Control Theory (AREA)
  • Manufacturing & Machinery (AREA)
  • Human Computer Interaction (AREA)
  • Computer Hardware Design (AREA)
  • Evolutionary Computation (AREA)
  • Geometry (AREA)
  • Architecture (AREA)
  • Programmable Controllers (AREA)
US15/438,669 2016-09-30 2017-02-21 Program development supporting apparatus, program development supporting method, and program development supporting program Abandoned US20180095447A1 (en)

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JP2016194881 2016-09-30

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US16/326,964 Active 2038-02-17 US11073818B2 (en) 2016-09-30 2017-09-29 Development support apparatus, program development support method, and program development support program

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US (2) US20180095447A1 (ja)
EP (2) EP3301569A1 (ja)
JP (1) JP6791254B2 (ja)
CN (2) CN107885898A (ja)
WO (1) WO2018062465A1 (ja)

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US11378928B2 (en) * 2018-03-14 2022-07-05 Omron Corporation Ladder diagram program generation assistance device, ladder diagram program generation assistance method, and recording medium

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JP7067520B2 (ja) * 2019-03-28 2022-05-16 オムロン株式会社 開発支援装置、開発支援装置の制御方法、情報処理プログラム、および記録媒体

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Publication number Priority date Publication date Assignee Title
US11378928B2 (en) * 2018-03-14 2022-07-05 Omron Corporation Ladder diagram program generation assistance device, ladder diagram program generation assistance method, and recording medium

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US20190187667A1 (en) 2019-06-20
JPWO2018062465A1 (ja) 2019-06-27
WO2018062465A1 (ja) 2018-04-05
EP3521953A4 (en) 2020-01-22
CN107885898A (zh) 2018-04-06
EP3301569A1 (en) 2018-04-04
US11073818B2 (en) 2021-07-27
CN109564415A (zh) 2019-04-02
EP3521953A1 (en) 2019-08-07
JP6791254B2 (ja) 2020-11-25

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