JPS5663606A - Sequence control unit - Google Patents

Sequence control unit

Info

Publication number
JPS5663606A
JPS5663606A JP13760479A JP13760479A JPS5663606A JP S5663606 A JPS5663606 A JP S5663606A JP 13760479 A JP13760479 A JP 13760479A JP 13760479 A JP13760479 A JP 13760479A JP S5663606 A JPS5663606 A JP S5663606A
Authority
JP
Japan
Prior art keywords
search
program
stored
control system
decided
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
JP13760479A
Other languages
Japanese (ja)
Other versions
JPS6112283B2 (en
Inventor
Naohiro Kurokawa
Tatsuo Fujiwara
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP13760479A priority Critical patent/JPS5663606A/en
Publication of JPS5663606A publication Critical patent/JPS5663606A/en
Publication of JPS6112283B2 publication Critical patent/JPS6112283B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Control By Computers (AREA)
  • Programmable Controllers (AREA)

Abstract

PURPOSE: To make it possible to not only elevate the utilization factor of the memory part but also perform a high speed execution processing, by storing in advance the head step of each program for search, before executing each program.
CONSTITUTION: When the start switch 121 is pushed, the head step 0 of the setting element memory 1 is selected by the first pulse generated from the clock generating circuit 3. The part which has stored the control system is input to the control system decision circuit 8, and it is decided. In this case, "0" is output in accordance with the sequence control program. In the next place, in case when the step N1 has been selected, since it is a cyclic control, the result 1 which has been decided by the control system decision circuit 8 is output, the step N1 is stored in the register of the search part 11. In this way, each head step of the cyclic control programs which have been optionally arranged in stored in the register of the search part 11. When said operation has been finished, the start switch is turned off. When search of the cyclic control program has been finished, it is shifted to the regular processing operation.
COPYRIGHT: (C)1981,JPO&Japio
JP13760479A 1979-10-26 1979-10-26 Sequence control unit Granted JPS5663606A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13760479A JPS5663606A (en) 1979-10-26 1979-10-26 Sequence control unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13760479A JPS5663606A (en) 1979-10-26 1979-10-26 Sequence control unit

Publications (2)

Publication Number Publication Date
JPS5663606A true JPS5663606A (en) 1981-05-30
JPS6112283B2 JPS6112283B2 (en) 1986-04-07

Family

ID=15202570

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13760479A Granted JPS5663606A (en) 1979-10-26 1979-10-26 Sequence control unit

Country Status (1)

Country Link
JP (1) JPS5663606A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5866114A (en) * 1981-10-15 1983-04-20 Mitsubishi Electric Corp Programmable controller
JPS59205605A (en) * 1983-05-07 1984-11-21 Hitachi Ltd Sequence controller
JPS6039203A (en) * 1983-08-12 1985-03-01 Idec Izumi Corp Programmable controller
EP0166391A2 (en) * 1984-06-22 1986-01-02 Hitachi, Ltd. Sequence controller
JPS62179603U (en) * 1986-04-30 1987-11-14

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5866114A (en) * 1981-10-15 1983-04-20 Mitsubishi Electric Corp Programmable controller
JPS59205605A (en) * 1983-05-07 1984-11-21 Hitachi Ltd Sequence controller
JPH0561646B2 (en) * 1983-05-07 1993-09-06 Hitachi Ltd
JPS6039203A (en) * 1983-08-12 1985-03-01 Idec Izumi Corp Programmable controller
EP0166391A2 (en) * 1984-06-22 1986-01-02 Hitachi, Ltd. Sequence controller
EP0166391B1 (en) * 1984-06-22 1990-09-05 Hitachi, Ltd. Sequence controller
JPS62179603U (en) * 1986-04-30 1987-11-14

Also Published As

Publication number Publication date
JPS6112283B2 (en) 1986-04-07

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