JPS54120378A - Sequence controller - Google Patents

Sequence controller

Info

Publication number
JPS54120378A
JPS54120378A JP2680478A JP2680478A JPS54120378A JP S54120378 A JPS54120378 A JP S54120378A JP 2680478 A JP2680478 A JP 2680478A JP 2680478 A JP2680478 A JP 2680478A JP S54120378 A JPS54120378 A JP S54120378A
Authority
JP
Japan
Prior art keywords
scanning
time
resister
counter
gate
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP2680478A
Other languages
Japanese (ja)
Other versions
JPS6118763B2 (en
Inventor
Toshihiko Yomogida
Takeshi Yokota
Sadamu Kato
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.)
Toyoda Koki KK
Original Assignee
Toyoda Koki KK
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 Toyoda Koki KK filed Critical Toyoda Koki KK
Priority to JP2680478A priority Critical patent/JPS54120378A/en
Publication of JPS54120378A publication Critical patent/JPS54120378A/en
Publication of JPS6118763B2 publication Critical patent/JPS6118763B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Testing And Monitoring For Control Systems (AREA)
  • Feedback Control In General (AREA)
  • Programmable Controllers (AREA)

Abstract

PURPOSE:To remove the out of order previously when a scanning time is beyond the reference time, by means of calculating the time by which a sequence program is once scanned, and indicating the longest time of the scanning. CONSTITUTION:A gate 19 is opened and a counter 15 calculates the clock pulse by the starting of once scanning of a sequence program. The gate 19 is closed by the finishing of once scanning of the sequence program, and the calculation of the clock pulse is stopped. The counting value of the counter 15 is compared with the value of a resister 16 by a comparator 17, and if in a case when the counting value of the counter 15 is large, it is memorized to the resister 16 by means of opening a gate 20. Scanning time is calculated every the scanning being repeated, and the longest time is memorized in the resister 16. If one cycle is finished, the value of the resister 16 is indicated by an indicator 18.
JP2680478A 1978-03-09 1978-03-09 Sequence controller Granted JPS54120378A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2680478A JPS54120378A (en) 1978-03-09 1978-03-09 Sequence controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2680478A JPS54120378A (en) 1978-03-09 1978-03-09 Sequence controller

Publications (2)

Publication Number Publication Date
JPS54120378A true JPS54120378A (en) 1979-09-18
JPS6118763B2 JPS6118763B2 (en) 1986-05-14

Family

ID=12203481

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2680478A Granted JPS54120378A (en) 1978-03-09 1978-03-09 Sequence controller

Country Status (1)

Country Link
JP (1) JPS54120378A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57134708A (en) * 1981-02-14 1982-08-20 Omron Tateisi Electronics Co Scanning type programmable controller
JPS57143606A (en) * 1981-03-03 1982-09-04 Omron Tateisi Electronics Co Scanning type programmable controller
JPS57169809A (en) * 1981-04-13 1982-10-19 Omron Tateisi Electronics Co Programmable logic controller
JPS5835605A (en) * 1981-08-26 1983-03-02 Fuji Facom Corp Instrumentation controller
JPS6215606A (en) * 1985-07-15 1987-01-24 Fuji Electric Co Ltd Method for confirming executing speed of programmable controller
JPH02212043A (en) * 1989-02-08 1990-08-23 Makino Milling Mach Co Ltd Method and device for foreseeing accident of machine tool

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57134708A (en) * 1981-02-14 1982-08-20 Omron Tateisi Electronics Co Scanning type programmable controller
JPS57143606A (en) * 1981-03-03 1982-09-04 Omron Tateisi Electronics Co Scanning type programmable controller
JPS57169809A (en) * 1981-04-13 1982-10-19 Omron Tateisi Electronics Co Programmable logic controller
JPS5835605A (en) * 1981-08-26 1983-03-02 Fuji Facom Corp Instrumentation controller
JPS6215606A (en) * 1985-07-15 1987-01-24 Fuji Electric Co Ltd Method for confirming executing speed of programmable controller
JPH02212043A (en) * 1989-02-08 1990-08-23 Makino Milling Mach Co Ltd Method and device for foreseeing accident of machine tool

Also Published As

Publication number Publication date
JPS6118763B2 (en) 1986-05-14

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