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JPS54126441A - Programmable logic controller - Google Patents

Programmable logic controller

Info

Publication number
JPS54126441A
JPS54126441A JP3390378A JP3390378A JPS54126441A JP S54126441 A JPS54126441 A JP S54126441A JP 3390378 A JP3390378 A JP 3390378A JP 3390378 A JP3390378 A JP 3390378A JP S54126441 A JPS54126441 A JP S54126441A
Authority
JP
Japan
Prior art keywords
divided
programs
sequences
program
interrupt
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.)
Pending
Application number
JP3390378A
Other languages
Japanese (ja)
Inventor
Katsuyuki Shimokawa
Kiyoshi Horiuchi
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP3390378A priority Critical patent/JPS54126441A/en
Publication of JPS54126441A publication Critical patent/JPS54126441A/en
Pending legal-status Critical Current

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  • Executing Machine-Instructions (AREA)
  • Programmable Controllers (AREA)

Abstract

PURPOSE: To make a response speed high and reduce the irregularity of the response speed by executing a program, which is divided into plural parts, by program sequence operation.
CONSTITUTION: Usually, scan program M, n-number divided programs P1 to Pn and n-number interrupt programs I1 to In are presented. As division unit for these programs, sequences scanned at all time are gathered surely. Then, in case that used sequences and unused sequences are mixed, they are divided into individual sequences. That is, a series of operation functions which is executed only under a specific condition is divided. Positioning control, for example, is defined as one sequence, and interrupt processings dependent upon contact input or process input at I/O interrupts are divided by respective interrupts. It is determined by the result of the sequence operation corresponded to each program whether programs divided by functions and processings in this manner and I/O interrupt programs should be executed or not.
COPYRIGHT: (C)1979,JPO&Japio
JP3390378A 1978-03-24 1978-03-24 Programmable logic controller Pending JPS54126441A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3390378A JPS54126441A (en) 1978-03-24 1978-03-24 Programmable logic controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3390378A JPS54126441A (en) 1978-03-24 1978-03-24 Programmable logic controller

Publications (1)

Publication Number Publication Date
JPS54126441A true JPS54126441A (en) 1979-10-01

Family

ID=12399467

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3390378A Pending JPS54126441A (en) 1978-03-24 1978-03-24 Programmable logic controller

Country Status (1)

Country Link
JP (1) JPS54126441A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57134707A (en) * 1981-02-12 1982-08-20 Hitachi Seiko Ltd Relay type sequence controller
JPS57189202A (en) * 1981-05-15 1982-11-20 Toshiba Corp Sequence controller
JPS58207106A (en) * 1982-03-30 1983-12-02 シンシナテイ・ミラクロン・インダストリ−ズ・インコ−ポレ−テッド Programmable control apparatus and method
JPS59114602A (en) * 1982-12-22 1984-07-02 Toshiba Corp Programmable controller
JPS59205605A (en) * 1983-05-07 1984-11-21 Hitachi Ltd Sequence control device
JPS59226904A (en) * 1983-06-08 1984-12-20 Fuji Electric Co Ltd Sequence controller
JPS6152702A (en) * 1984-08-23 1986-03-15 Nec Corp Sequence controller
JPH0280807U (en) * 1989-10-16 1990-06-21

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57134707A (en) * 1981-02-12 1982-08-20 Hitachi Seiko Ltd Relay type sequence controller
JPS57189202A (en) * 1981-05-15 1982-11-20 Toshiba Corp Sequence controller
JPS58207106A (en) * 1982-03-30 1983-12-02 シンシナテイ・ミラクロン・インダストリ−ズ・インコ−ポレ−テッド Programmable control apparatus and method
JPS59114602A (en) * 1982-12-22 1984-07-02 Toshiba Corp Programmable controller
JPS59205605A (en) * 1983-05-07 1984-11-21 Hitachi Ltd Sequence control device
JPS59226904A (en) * 1983-06-08 1984-12-20 Fuji Electric Co Ltd Sequence controller
JPS6152702A (en) * 1984-08-23 1986-03-15 Nec Corp Sequence controller
JPH0280807U (en) * 1989-10-16 1990-06-21

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