WO1990002366A1 - System for diagnosing cnc - Google Patents

System for diagnosing cnc Download PDF

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Publication number
WO1990002366A1
WO1990002366A1 PCT/JP1989/000838 JP8900838W WO9002366A1 WO 1990002366 A1 WO1990002366 A1 WO 1990002366A1 JP 8900838 W JP8900838 W JP 8900838W WO 9002366 A1 WO9002366 A1 WO 9002366A1
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WO
WIPO (PCT)
Prior art keywords
cnc
host computer
diagnosis
numerical
failure
Prior art date
Application number
PCT/JP1989/000838
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French (fr)
Japanese (ja)
Inventor
Jiro Kinoshita
Original Assignee
Fanuc Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fanuc Ltd filed Critical Fanuc Ltd
Publication of WO1990002366A1 publication Critical patent/WO1990002366A1/en

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Classifications

    • 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
    • G05B19/406—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 monitoring or safety
    • G05B19/4063—Monitoring general control system

Definitions

  • the present invention relates to a remote diagnosis method of a CNC for diagnosing failure of a numerical control device (CNC), and more particularly to a diagnosis method of a CNC which performs a diagnosis by connecting a numerical control device and a host computer via a network.
  • CNC numerical control device
  • the present invention has been made in view of such a point, and an object of the present invention is to provide a diagnostic method of CNC by connecting a numerical controller and a host computer via a network.
  • a host computer and a numerical control device are connected via a network, and a failure diagnosis program is provided by the host computer.
  • the present invention provides a CNC diagnostic method characterized in that the numerical control device is downloaded to the numerical control device and a failure diagnosis of the numerical control device is performed.
  • the host computer downloads a diagnostic program for failure diagnosis to the numerical controller, executes the failure diagnosis, and transfers necessary data to the host computer.
  • FIG. 1 is a block diagram of an embodiment of a CNC diagnostic method according to the present invention.
  • FIG. 2 is a block diagram of a numerical controller according to the present invention.
  • BEST MODE FOR CARRYING OUT THE INVENTION hereinafter, an embodiment of the present invention will be described with reference to the drawings.
  • FIG. 1 shows a block diagram of an embodiment of the CNC diagnostic method according to the present invention.
  • 10 is a host computer section
  • 11 is a host computer
  • 12 is a communication port.
  • 5 1 is modeled.
  • Numerals 20, 30, and 40 are numerical control units (CNCs) coupled to the numerical control machine, and coupled to modems 52, 53, and 54, respectively, to provide communication lines 55, 56, and 54. It is connected to the modem 51 of the host computer via 57.
  • CNCs numerical control units
  • the network between the host computer and the numerical controller uses the MAP (ManufactuirngAutomationdProtocoll) which is currently in use.
  • the communication lines 55, 56, and 57 that make up the network use wire, and coaxial cables use optical fibers.
  • a combined machine may be used for the modem 51 and the like.
  • a failure diagnosis program is downloaded from the host computer 10 to the corresponding numerical control unit. Then, data required for diagnosis is transferred to the host computer.
  • the service engineer transfers these data to the host computer screen. You can request a special data transfer if necessary.
  • FIG. 2 shows a block diagram of the numerical control device of the present invention.
  • reference numeral 20 denotes a numerical controller (CNC)
  • reference numeral 61 denotes a processor that controls the numerical controller.
  • 62 is R 0 M in which the system program is stored
  • 63 is R AM in which the system program is loaded and other data is stored.
  • Reference numeral 64a denotes an operation key
  • reference numeral 64b denotes a display device
  • reference numeral 65 denotes a CM0S constituting a battery-packed nonvolatile memory.
  • 66 a is a PMC (programmable machine 'controller) built in the numerical controller 20 and controls the machine side with a sequence program created in ladder format.
  • 6 6b is obtained from the IZO unit, and the power board on the machine side is an interface for input and output to the operation panel.
  • Reference numeral 67 denotes a processor for failure diagnosis.
  • Reference numeral 68 denotes a RAM for storing a failure diagnosis program.
  • the processor 67 is used in accordance with the diagnostic program stored in the RAM 68. Perform a diagnosis. This is because, when a failure occurs, the failure cause may be found in the processor 63 or the RAM 63 or the like, and therefore, a processor and a RAM dedicated to failure diagnosis are provided.
  • 69 is a communication port, receives a diagnostic program, and converts it into an internal signal.
  • 52 is a modem, and 55 and 56 are communication lines.
  • 71 to 75 are axis control circuits for controlling the position of each axis.
  • the servo amplifiers 81 to 85 drive the servo motors 91 to 95.
  • the host computer and the numerical control device are connected to each other via a network to perform fault diagnosis. Diagnosis can be performed, failure recovery time is reduced, and cost is reduced.

Abstract

A CNC diagnosing system for diagnosing defect of a numerical controller (CNC). In case a defect generates in any one of the numerical controllers (20, 30 and 40), a host computer (11) loads down onto the numerical controller a diagnosis program for diagnosing defect, and executes the diagnosis of defect. Required data are then transferred from the numerical controller to the host computer (11). Therefore, a service engineer can diagnose the defect on the numerical controller based on data displayed on the screen of the host computer (11).

Description

明 細 書  Specification
C N Cの診断方式 技 術 分 野 C NC diagnostic method
本発明は数値制御装置 （C N C ) の故障を診断する C N C のリ モー ト診断方式に関し、 特に数値制御装置とホス ト計算 機をネッ ト ヮークで結合して診断を行ぅ C N Cの診断方式に 関する。 背 景 技 術  The present invention relates to a remote diagnosis method of a CNC for diagnosing failure of a numerical control device (CNC), and more particularly to a diagnosis method of a CNC which performs a diagnosis by connecting a numerical control device and a host computer via a network. . Background technology
数値制御装置はマィ ク oプロセッサを始めとする半導体技 術、 ソ フ ト ゥュァ技術の発達にょり、 ょり複雑になり、 高度 になってぃる。 このょぅな数値制御装置の故障率は信頼性技 術の向上にょって改善されてぃるが、 ー旦障害が発生すると. その原因を糾明するのは極めて困難になる。 '  Numerical controllers have become more complex and sophisticated with the development of semiconductor technology and software technology, including microprocessors. The failure rate of such numerical control devices has been improved with the improvement of reliability technology, but when a failure occurs, it becomes extremely difficult to identify the cause. '
ー方、 加ェェ場には多数の数値制御ェ作機械が導入され、 これらの数値制御ェ作機械はェ場内のホス ト計算機に結合さ れてぉり、 加ェデータ等がホス ト計算機から数値制御装置に 転送されてぃる。  Many numerical control machines are installed in the field, and these numerical control machines are connected to the host computer in the field, and the data is sent from the host computer. It has been transferred to the numerical controller.
しかし、 数値制御装置に故障が発生するとサービスェ ンジ ニ了は該当する数値制御装置へぃき、 故障の内容を調べ、 修 理を行ってぃる。 ー方、 数値制御装置がょり複雑になってき てぉり、 簡単に故障を発見することが困難な場合が多く、 サ ービスェ ンジニァは何度も数値制御装置と、 ェ場内のサ一ビ スセンタ等の間を往復する場合が少なくなぃ 発 明 の 開 示 However, when a failure occurs in the numerical control device, the service engineer goes to the corresponding numerical control device, examines the content of the failure, and performs repair. On the other hand, numerical controllers are becoming more complicated, and it is often difficult to find faults easily, and service engineers often use numerical controllers and service in factories. Less likely to reciprocate between centers, etc.
本発明はこのょぅな点に鑑みてなされたものでぁり、 数値 制御装置とホス ト計算機をネッ トヮークで結合して診断を行 ぅ C N Cの診断方式を提供することを目的とする。  The present invention has been made in view of such a point, and an object of the present invention is to provide a diagnostic method of CNC by connecting a numerical controller and a host computer via a network.
本発明では上記課題を解決するために、  In the present invention, in order to solve the above problems,
数値制御装置 （C N C ) の故障を診断する C N Cの診断方 式にぉぃて、 ホス ト計算機と数値制御装置をネッ トヮ一クで で連結し、 前記ホス ト計算機ょり、 故障診断用プログラムを 前記数値制御装置にダゥンロードし、 前記数値制御装置の故 障診断を実行することを特徵とする C N Cの診断方式が、 提供される。  According to the CNC diagnosis method for diagnosing failure of a numerical control device (CNC), a host computer and a numerical control device are connected via a network, and a failure diagnosis program is provided by the host computer. The present invention provides a CNC diagnostic method characterized in that the numerical control device is downloaded to the numerical control device and a failure diagnosis of the numerical control device is performed.
数値制御装置に故障が発生するとホス ト計算機は数値制御 装置に故障診断用の診断プログラムをダゥン π—ドし、 故障 診断を実行し、 必要 データをホス ト計算機に転送する。  When a failure occurs in the numerical controller, the host computer downloads a diagnostic program for failure diagnosis to the numerical controller, executes the failure diagnosis, and transfers necessary data to the host computer.
サービスェンジニァはホス ト計算機に表示されたデータか ら数値制御装置の故障診断を行ぅ。 図 面 の 簡 単 な 説 明 第 1図は本発明の C N C診断方式のー実施例のブ口 ック図 第 2図は本発明の数値制御装置のブ πック図でぁる。 発明を実施するための最良の形態 以下、 本発明の一実施例を図面に基づぃて説明する。 第 1図に本発明の C N C診断方式のー実施例のブロ ッ ク図 を示す。 図にぉぃて、 1 0はホス ト計算機部でぁり、 1 1 は ホス ト計算機でぁり、 1 2は通信用ポー トでぁる。 5 1 はモ デムでめる。 The service engineer diagnoses the failure of the numerical controller from the data displayed on the host computer. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of an embodiment of a CNC diagnostic method according to the present invention. FIG. 2 is a block diagram of a numerical controller according to the present invention. BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a block diagram of an embodiment of the CNC diagnostic method according to the present invention. In the figure, 10 is a host computer section, 11 is a host computer, and 12 is a communication port. 5 1 is modeled.
2 0、 3 0及び 4 0は数値制御ェ作機械に結合された数値 制御装置 （C N C) でぁり、 それぞれモデム 5 2、 5 3及び 5 4に結合され、 通信回線 5 5、 5 6及び 5 7を介してホス ト計算機のモデム 5 1 と結合されてぃる。 図では簡単のため に、 3合の数値制御装置を示したが、 実際にはょり多数の数 値制御装置が結合される。  Numerals 20, 30, and 40 are numerical control units (CNCs) coupled to the numerical control machine, and coupled to modems 52, 53, and 54, respectively, to provide communication lines 55, 56, and 54. It is connected to the modem 51 of the host computer via 57. In the figure, for the sake of simplicity, three sets of numerical controllers are shown, but in fact, a large number of numerical controllers are combined.
これらのホス ト計算機と数値制御装置とのネッ ト ヮ一クは 現在使用が開始されてぃる M A P (M a n u f a c t u r i n g A u t o m a t i o n P r o t o c o l ) が使用 れる。 ネ ッ トヮ一クを構成する通信回線 5 5、 5 6及び 5 7 はぺァ線、 同軸ケ一ブルぁるぃは光ファィバー等が使用され る。 モデム 5 1等は結合機が使用される場合もぁる。  The network between the host computer and the numerical controller uses the MAP (ManufactuirngAutomationdProtocoll) which is currently in use. The communication lines 55, 56, and 57 that make up the network use wire, and coaxial cables use optical fibers. For the modem 51 and the like, a combined machine may be used.
ここで数値制御装置 （C N C ) 2 0、 3 0ぁるぃは 4 0 に 故障が発生すると、 ホス ト計算機 1 0からは故障診断プログ ラムが、 該当する数値制御装置にダゥ ンロ一 ドされ、 診断に 必要なデ一タがホス ト計算機に転送される。  Here, when a failure occurs in the numerical control unit (CNC) 20 or 30 at 40, a failure diagnosis program is downloaded from the host computer 10 to the corresponding numerical control unit. Then, data required for diagnosis is transferred to the host computer.
これらのデータは数値制御装置の画面に表示できるデータ から必要に応じて選択する。 具体的には数値制御装置の各軸 の位置、 座標値ぁるぃは R AMの内容、 入出カの状態等でぁ る  These data are selected as necessary from the data that can be displayed on the screen of the numerical controller. Specifically, the position and coordinate values of each axis of the numerical controller are determined by the contents of the RAM, input / output states, etc.
サービスェンジニァはこれらのデ一タをホス ト計算機の画 面で確認し、 故障診断を行ぃ、 必要に応じて、 特別なデータ を転送するょぅに要求することができる。 The service engineer transfers these data to the host computer screen. You can request a special data transfer if necessary.
第 2図に本発明の数値制御装置のブロ ック図を示す。 図に ぉぃて、 2 0は数値制御装置 （C N C) でぁり、 6 1 は数値 制御装置を制御するプロセッサでぁる。 6 2はシステムプ π グラムの格納された R 0 M、 6 3はシステムプログラムがロ ーディ ングされ、 かっ他のデータを格納する R AMでぁる。 6 4 aは操作キ一、 6 4 bは表示装置、 6 5はバッテ リパッ クされた不揮発性メモリを構成する CM 0 Sでぁる。  FIG. 2 shows a block diagram of the numerical control device of the present invention. In the figure, reference numeral 20 denotes a numerical controller (CNC), and reference numeral 61 denotes a processor that controls the numerical controller. 62 is R 0 M in which the system program is stored, and 63 is R AM in which the system program is loaded and other data is stored. Reference numeral 64a denotes an operation key, reference numeral 64b denotes a display device, and reference numeral 65 denotes a CM0S constituting a battery-packed nonvolatile memory.
6 6 aは数値制御装置 2 0 に内蔵された PMC (プログラ マブル · マシン ' コ ン トローラ） でぁり、 ラダー形式で作成 されたシ一ケンスプ グラムで機械側を制御する。 6 6 bは I ZOュニッ トでぁり、 機械側の強電盤ぁるぃは操作盤への 入出カのィ ンタフヱースでぁる。  66 a is a PMC (programmable machine 'controller) built in the numerical controller 20 and controls the machine side with a sequence program created in ladder format. 6 6b is obtained from the IZO unit, and the power board on the machine side is an interface for input and output to the operation panel.
6 7 は故障診断用のプロセッサでぁり、 6 8は故障診断用 プログラムを格納する R AMでぁり、 故障診断時は R AM 6 8に格納された診断プログラムにょって、 プロセッサ 6 7が 診断を行ぅ。 これは故障発生時はプロセッサ 6 1ぁるぃは R AM 6 3等に故障原因がぁる場合がぁるので、 故障診断専用 のプロセッサ及び R AMを設けたのでぁる。 6 9は通信用ポ ー トでぁり、 診断プログラムを受信し、 内部信号に変換する 5 2はモデム、 5 5及び 5 6は通信回線でぁる。  Reference numeral 67 denotes a processor for failure diagnosis. Reference numeral 68 denotes a RAM for storing a failure diagnosis program. At the time of failure diagnosis, the processor 67 is used in accordance with the diagnostic program stored in the RAM 68. Perform a diagnosis. This is because, when a failure occurs, the failure cause may be found in the processor 63 or the RAM 63 or the like, and therefore, a processor and a RAM dedicated to failure diagnosis are provided. 69 is a communication port, receives a diagnostic program, and converts it into an internal signal. 52 is a modem, and 55 and 56 are communication lines.
7 1〜7 5は軸制御回路でぁり、 各軸の位置制御を行ぅ。 8 1〜8 5はサーボァ.ンプでぁり、 サ一ボモ一タ 9 1〜 9 5 を駆動する。 以上説明したょぅに本発明では、 ホス ト計算機と数値制御 装置をネッ ト ヮ一クで結合して故障診断を行ぅょぅにしたの で、 サービスェンジニァがェ場の管理室等で診断を行ぅ こと ができ、 障害の復旧時間が短縮され、 かっコ ス ト も低減され る。 71 to 75 are axis control circuits for controlling the position of each axis. The servo amplifiers 81 to 85 drive the servo motors 91 to 95. As described above, according to the present invention, the host computer and the numerical control device are connected to each other via a network to perform fault diagnosis. Diagnosis can be performed, failure recovery time is reduced, and cost is reduced.

Claims

請 求 の 範 囲 The scope of the claims
1. 数値制御装置 （CNC) の故障を診断する C N Cの診 断方式にぉぃて、  1. Diagnosis of failure of numerical control unit (CNC)
ホス ト計算機と数値制御装置をネッ トヮークでで連結し、 前記ホス ト計算機ょり、 故障診断用プ πグラムを前記数值 制御装置にダゥンロードし、  A host computer and a numerical control device are connected via a network, and the host computer and the failure diagnosis program are downloaded to the numerical control device;
前記数値制御装置の故障診断を実行することを特徴とする CNCの診断方式。  A CNC diagnosis method for performing a failure diagnosis of the numerical controller.
2. 前言 Sネッ トヮークは MA P (M a n u f a c t u r i n g Au t om a t i o n P r o t o c o l ) で構成し たことを特徵とする特許請求の範囲第 1項記載の C N Cの診 断 ¾式。  2. The CNC diagnostic system according to claim 1, wherein the S network is composed of MAP (ManufactuT AuRing AuTomiotiOnProtoColl).
3. 前記故障診断プログラムは故障診断用の R AMにダゥ ンロードし、 故障診断用のプロセッサにょって実行されるこ とを特徴とする特許請求の範囲第 1項記載の C N Cの診断方  3. The CNC diagnosis method according to claim 1, wherein the failure diagnosis program is downloaded to a failure diagnosis RAM and executed by a failure diagnosis processor.
PCT/JP1989/000838 1988-08-29 1989-08-16 System for diagnosing cnc WO1990002366A1 (en)

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JP63214605A JPH0262606A (en) 1988-08-29 1988-08-29 Cnc diagnosing system
JP63/214605 1988-08-29

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