JPS57153305A - Sequence controller - Google Patents

Sequence controller

Info

Publication number
JPS57153305A
JPS57153305A JP3800581A JP3800581A JPS57153305A JP S57153305 A JPS57153305 A JP S57153305A JP 3800581 A JP3800581 A JP 3800581A JP 3800581 A JP3800581 A JP 3800581A JP S57153305 A JPS57153305 A JP S57153305A
Authority
JP
Japan
Prior art keywords
output
section
storage section
memory
internal
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
JP3800581A
Other languages
Japanese (ja)
Inventor
Naohiro Kurokawa
Ryoichi Abe
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 JP3800581A priority Critical patent/JPS57153305A/en
Priority to KR8200056A priority patent/KR880001214B1/en
Priority to DE3201593A priority patent/DE3201593C2/en
Publication of JPS57153305A publication Critical patent/JPS57153305A/en
Pending legal-status Critical Current

Links

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
    • 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
    • G05B2219/00—Program-control systems
    • G05B2219/10—Plc systems
    • G05B2219/11—Plc I-O input output
    • G05B2219/1159—Image table, memory
    • 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
    • G05B2219/00—Program-control systems
    • G05B2219/10—Plc systems
    • G05B2219/11—Plc I-O input output
    • G05B2219/1175—Activating output repeatedly for guaranteed turning on of output
    • 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
    • G05B2219/00—Program-control systems
    • G05B2219/10—Plc systems
    • G05B2219/13—Plc programming
    • G05B2219/13004—Programming the plc
    • 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
    • G05B2219/00—Program-control systems
    • G05B2219/10—Plc systems
    • G05B2219/13—Plc programming
    • G05B2219/13155—Inserting instructions in program

Abstract

PURPOSE:To avoid malfunction, by rejecting an external noise in a shorter time than a response time of a switch means connected to an output section, through the provision of a temporary storage section and transmission of a signal relating to output elements from the storage section to the output section in a short period. CONSTITUTION:A memory 22 is a memory storing a sequence processing step and a memory 23 is a user's RAM storing an internal set element at each step of a sequence circuit in program set in advance from a program set section 4. The 1st internal output storage section 24 is a temporary storage section which is arranged corresponding to a latch group of an output section and an output terminal group and possible for write-in and readout. The 2nd internal output storage section 25 is provided with a temporary storage section consisting of a plurality of storages, Y''1-Y''8 corresponding to output terminals Y1-Y3 and a latch group of the output section 3 similarly.
JP3800581A 1981-01-21 1981-03-18 Sequence controller Pending JPS57153305A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP3800581A JPS57153305A (en) 1981-03-18 1981-03-18 Sequence controller
KR8200056A KR880001214B1 (en) 1981-01-21 1982-01-08 Sequence controller
DE3201593A DE3201593C2 (en) 1981-01-21 1982-01-20 Programmable logic controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3800581A JPS57153305A (en) 1981-03-18 1981-03-18 Sequence controller

Publications (1)

Publication Number Publication Date
JPS57153305A true JPS57153305A (en) 1982-09-21

Family

ID=12513451

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3800581A Pending JPS57153305A (en) 1981-01-21 1981-03-18 Sequence controller

Country Status (1)

Country Link
JP (1) JPS57153305A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS543673A (en) * 1977-06-09 1979-01-11 Toshiba Corp Sequence control system
JPS5539933A (en) * 1978-09-13 1980-03-21 Nissan Motor Co Ltd Process control device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS543673A (en) * 1977-06-09 1979-01-11 Toshiba Corp Sequence control system
JPS5539933A (en) * 1978-09-13 1980-03-21 Nissan Motor Co Ltd Process control device

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