JPS6472202A - Sequence control system - Google Patents

Sequence control system

Info

Publication number
JPS6472202A
JPS6472202A JP22839787A JP22839787A JPS6472202A JP S6472202 A JPS6472202 A JP S6472202A JP 22839787 A JP22839787 A JP 22839787A JP 22839787 A JP22839787 A JP 22839787A JP S6472202 A JPS6472202 A JP S6472202A
Authority
JP
Japan
Prior art keywords
control
sequential
time division
sequential system
circuit
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
JP22839787A
Other languages
Japanese (ja)
Inventor
Masahiro Shikayama
Hiroshi Nagase
Hiroshi Sugai
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 JP22839787A priority Critical patent/JPS6472202A/en
Publication of JPS6472202A publication Critical patent/JPS6472202A/en
Pending legal-status Critical Current

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  • Programmable Controllers (AREA)

Abstract

PURPOSE:To improve the sequence control efficiency by starting the control of a sequential system and the control of a non-sequential system after the control of the sequence system so that the control of both systems are carried out in time division. CONSTITUTION:A time division circuit 108 contains an interruption controller 122 and a timer 121 which are controlled to an arithmetic unit 109 via a bus 117 and have the programmable actions based on the commands of the unit 109. A controller 101 interrupts the control of a non-sequential system by a fixed cycle signal given from the circuit 108 and starts the control of the sequential system and then the control of the non-sequential system again. In such a way, the circuit 108 of a simple constitution is added to the controller 101 for its time division processing. As a result, both sequential and non-sequential systems are effectively controlled.
JP22839787A 1987-09-14 1987-09-14 Sequence control system Pending JPS6472202A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22839787A JPS6472202A (en) 1987-09-14 1987-09-14 Sequence control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22839787A JPS6472202A (en) 1987-09-14 1987-09-14 Sequence control system

Publications (1)

Publication Number Publication Date
JPS6472202A true JPS6472202A (en) 1989-03-17

Family

ID=16875828

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22839787A Pending JPS6472202A (en) 1987-09-14 1987-09-14 Sequence control system

Country Status (1)

Country Link
JP (1) JPS6472202A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03144706A (en) * 1989-10-31 1991-06-20 Hitachi Ltd programmable controller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03144706A (en) * 1989-10-31 1991-06-20 Hitachi Ltd programmable controller

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