JPS57176415A - Sequence controller - Google Patents

Sequence controller

Info

Publication number
JPS57176415A
JPS57176415A JP6136781A JP6136781A JPS57176415A JP S57176415 A JPS57176415 A JP S57176415A JP 6136781 A JP6136781 A JP 6136781A JP 6136781 A JP6136781 A JP 6136781A JP S57176415 A JPS57176415 A JP S57176415A
Authority
JP
Japan
Prior art keywords
section
memory
sequence
data
stored
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
JP6136781A
Other languages
Japanese (ja)
Inventor
Iwao Sugiyama
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 JP6136781A priority Critical patent/JPS57176415A/en
Publication of JPS57176415A publication Critical patent/JPS57176415A/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
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
    • G05B19/054—Input/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
    • G05B2219/11—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
    • G05B2219/15—Plc structure of the system
    • G05B2219/15056—DMA

Abstract

PURPOSE:To execute the logical operation in bit unit in high speed, by providing a direct memory access control section and an operation section for a sequence operation and making direct data transfer with a main memory section and a data memory section. CONSTITUTION:An input data from a control variable 5 is temporarily stored in a data memory section 3, the input data is sequentially transmitted from the memory section 3 in accordance with the sequence operation program stored in a main memory 2 and sequence operation is made at a central operation processing section 1. After the result is stored in the memory 3 again, a sequence operation section 6 consisting of a direct memory access control section 61 and an operation section 62 is provided in a sequence controller using a microcomputer outputted to a control variable 5, and the sequence operation program and the input data are fetched to an operation section 6 from the main memory 2 and the data memory 3 via the control section 61 for sequence operation, and the result is stored from the control section 61 to the memory section 3 again.
JP6136781A 1981-04-24 1981-04-24 Sequence controller Pending JPS57176415A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6136781A JPS57176415A (en) 1981-04-24 1981-04-24 Sequence controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6136781A JPS57176415A (en) 1981-04-24 1981-04-24 Sequence controller

Publications (1)

Publication Number Publication Date
JPS57176415A true JPS57176415A (en) 1982-10-29

Family

ID=13169118

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6136781A Pending JPS57176415A (en) 1981-04-24 1981-04-24 Sequence controller

Country Status (1)

Country Link
JP (1) JPS57176415A (en)

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