JPS56118105A - Input insulating relay unit - Google Patents

Input insulating relay unit

Info

Publication number
JPS56118105A
JPS56118105A JP2045180A JP2045180A JPS56118105A JP S56118105 A JPS56118105 A JP S56118105A JP 2045180 A JP2045180 A JP 2045180A JP 2045180 A JP2045180 A JP 2045180A JP S56118105 A JPS56118105 A JP S56118105A
Authority
JP
Japan
Prior art keywords
input
sequencer
relay
external input
relays
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
JP2045180A
Other languages
Japanese (ja)
Inventor
Gi Hisayoshi
Takao Honna
Kounosuke Matsumoto
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 JP2045180A priority Critical patent/JPS56118105A/en
Publication of JPS56118105A publication Critical patent/JPS56118105A/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
    • G05B2219/1188—Detection of inserted boards, inserting extra memory, availability of boards
    • 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
    • G05B2219/14—Plc safety
    • G05B2219/14089—Display of control states on cards, by leds
    • 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
    • G05B2219/14—Plc safety
    • G05B2219/14144—Galvanic isolation

Abstract

PURPOSE:To improve the packaging efficiency and to make easy the revamping at extension, by making corresponding the relay unit to the unit of digital input board of sequencer. CONSTITUTION:An external input contact S1 and an input insulating relay X1 are connected in series, and the assembly of input insulating relay X1 connected in parallel with the operation indicating lamp L1 via a diode D1 and a resistance R1 is connected between the power supplies P1 and N1. The same assemblies are connected in parallel by n sets. Further, 3-notch switches SW1-SWn are inserted to the input insulating relays X1-Xn in series in combination with the operation indicating lamp. This 3-notch switch is changed over into 3 positions, and at the AUTO position, the state of external input contact signal is inputted to the sequencer as it is, and at the on position, the input signal is compulsively inputted to the sequencer independently of the external input contact state. Further, the contacts of the relays X1-Xn are connected to the lamps R1-Rn located externally.
JP2045180A 1980-02-22 1980-02-22 Input insulating relay unit Pending JPS56118105A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2045180A JPS56118105A (en) 1980-02-22 1980-02-22 Input insulating relay unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2045180A JPS56118105A (en) 1980-02-22 1980-02-22 Input insulating relay unit

Publications (1)

Publication Number Publication Date
JPS56118105A true JPS56118105A (en) 1981-09-17

Family

ID=12027424

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2045180A Pending JPS56118105A (en) 1980-02-22 1980-02-22 Input insulating relay unit

Country Status (1)

Country Link
JP (1) JPS56118105A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001282321A (en) * 2000-03-31 2001-10-12 Toyoda Mach Works Ltd Relay module equipped with signal state confirming device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5370290A (en) * 1976-12-04 1978-06-22 Fuji Electric Co Ltd Simulation input device for sequential controller

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5370290A (en) * 1976-12-04 1978-06-22 Fuji Electric Co Ltd Simulation input device for sequential controller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001282321A (en) * 2000-03-31 2001-10-12 Toyoda Mach Works Ltd Relay module equipped with signal state confirming device

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