IT1032183B - IMPROVEMENT IN PROGRAMMABLE LOCAL CONTROL DEVICES - Google Patents

IMPROVEMENT IN PROGRAMMABLE LOCAL CONTROL DEVICES

Info

Publication number
IT1032183B
IT1032183B IT5475074A IT5475074A IT1032183B IT 1032183 B IT1032183 B IT 1032183B IT 5475074 A IT5475074 A IT 5475074A IT 5475074 A IT5475074 A IT 5475074A IT 1032183 B IT1032183 B IT 1032183B
Authority
IT
Italy
Prior art keywords
improvement
control devices
local control
programmable local
programmable
Prior art date
Application number
IT5475074A
Other languages
Italian (it)
Inventor
Bobby George Burkett
Raymond Wilson Henry
Original Assignee
Texas Instruments Inc
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
Priority claimed from US05/431,538 external-priority patent/US3953834A/en
Priority claimed from US05/431,589 external-priority patent/US3982230A/en
Application filed by Texas Instruments Inc filed Critical Texas Instruments Inc
Application granted granted Critical
Publication of IT1032183B publication Critical patent/IT1032183B/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/06—Addressing a physical block of locations, e.g. base addressing, module addressing, memory dedication
    • G06F12/0646—Configuration or reconfiguration
    • G06F12/0684—Configuration or reconfiguration with feedback, e.g. presence or absence of unit detected by addressing, overflow detection
    • 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
    • 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
    • G05B2219/11101—Verifying ram data correct, validity, reload faulty data with correct data
    • 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
    • G05B2219/1168—Peak amplitude for input, nul amplitude for activating 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
    • G05B2219/13—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
    • G05B2219/13012—Using other programs, adapting program to machine, exchanging or rom
    • 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
    • G05B2219/13128—Relay ladder diagram, RLL RLD KOP
    • 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
    • G05B2219/15018—Communication, serial data transmission, modem
    • 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
    • G05B2219/15054—LIFO for storing intermediate results

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Programmable Controllers (AREA)
  • Executing Machine-Instructions (AREA)
IT5475074A 1974-01-07 1974-12-23 IMPROVEMENT IN PROGRAMMABLE LOCAL CONTROL DEVICES IT1032183B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/431,538 US3953834A (en) 1974-01-07 1974-01-07 Programmable logic controller with push down stack
US05/431,589 US3982230A (en) 1974-01-07 1974-01-07 Programmable logic controller with flag storage

Publications (1)

Publication Number Publication Date
IT1032183B true IT1032183B (en) 1979-05-30

Family

ID=27029087

Family Applications (1)

Application Number Title Priority Date Filing Date
IT5475074A IT1032183B (en) 1974-01-07 1974-12-23 IMPROVEMENT IN PROGRAMMABLE LOCAL CONTROL DEVICES

Country Status (6)

Country Link
JP (1) JPS6227404B2 (en)
DE (1) DE2500320A1 (en)
FR (1) FR2325103A1 (en)
GB (3) GB1490549A (en)
IT (1) IT1032183B (en)
NL (1) NL7500095A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3997879A (en) * 1975-12-24 1976-12-14 Allen-Bradley Company Fault processor for programmable controller with remote I/O interface racks
JPS6010644B2 (en) * 1978-09-13 1985-03-19 日産自動車株式会社 Sequence display control method
DE2842372A1 (en) * 1978-09-28 1980-04-10 Siemens Ag PROGRAMMABLE CONTROL
JPS56127202A (en) * 1980-03-11 1981-10-05 Toshiba Corp Car control device
JPS57176414A (en) * 1981-04-24 1982-10-29 Hitachi Ltd Sequence controller
JPS6075903A (en) * 1983-09-30 1985-04-30 Matsushita Electric Works Ltd Sequence controller
IT202000004231A1 (en) * 2020-02-28 2021-08-28 St Microelectronics Srl WAVE FORMS GENERATOR

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3162840A (en) * 1960-06-06 1964-12-22 Ibm Electronic data processing machine control
US3200379A (en) * 1961-01-23 1965-08-10 Burroughs Corp Digital computer
CA954631A (en) * 1970-03-02 1974-09-10 Rosemount Engineering Company Limited Multi-channel control systems
US3624611A (en) * 1970-03-09 1971-11-30 Gte Automatic Electric Lab Inc Stored-logic real time monitoring and control system
US3761882A (en) * 1971-12-01 1973-09-25 Struthers Dunn Process control computer

Also Published As

Publication number Publication date
JPS6227404B2 (en) 1987-06-15
DE2500320C2 (en) 1988-06-16
FR2325103A1 (en) 1977-04-15
GB1490550A (en) 1977-11-02
DE2500320A1 (en) 1975-07-17
GB1490548A (en) 1977-11-02
NL7500095A (en) 1975-07-09
FR2325103B1 (en) 1983-03-25
GB1490549A (en) 1977-11-02
JPS50116887A (en) 1975-09-12

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