[go: up one dir, main page]

JPS55150011A - Process controller - Google Patents

Process controller

Info

Publication number
JPS55150011A
JPS55150011A JP5632079A JP5632079A JPS55150011A JP S55150011 A JPS55150011 A JP S55150011A JP 5632079 A JP5632079 A JP 5632079A JP 5632079 A JP5632079 A JP 5632079A JP S55150011 A JPS55150011 A JP S55150011A
Authority
JP
Japan
Prior art keywords
contacts
turned
given
input
command
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
JP5632079A
Other languages
Japanese (ja)
Inventor
Kazushi Taoka
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 JP5632079A priority Critical patent/JPS55150011A/en
Publication of JPS55150011A publication Critical patent/JPS55150011A/en
Pending legal-status Critical Current

Links

Landscapes

  • Testing And Monitoring For Control Systems (AREA)
  • Test And Diagnosis Of Digital Computers (AREA)

Abstract

PURPOSE: To carry out the fault diagnosis of the process input and output devices without causing the change of the process state but by opening the exciting power source of the process unit via the relay circuit.
CONSTITUTION: Electronic computer 1 gives the switching command to switching unit 4 via process output device 2. Relay contact 10-0 is turned on by the switching command, and accordingly relay contact 13-0 is turned off along with the exciting power sources of relays 14-1W14-n turned off each. As a result, no control output is given to the process unit. Under these conditions, the OFF command is given first to all contacts 10-1W10-n and then the input is given to contacts 12-1W12-n. If device 2 and input device 3 are normal, contacts 12-1W12-n are all turned off. And in case even one of the contacts is turned on, the fault is detected for the output or input at that point. Thus the error process is given. After this, computer 1 gives the ON command to all contacts 10-1W10-n, and then carries out the error process in the same way in case even one of the contacts is turned off.
COPYRIGHT: (C)1980,JPO&Japio
JP5632079A 1979-05-10 1979-05-10 Process controller Pending JPS55150011A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5632079A JPS55150011A (en) 1979-05-10 1979-05-10 Process controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5632079A JPS55150011A (en) 1979-05-10 1979-05-10 Process controller

Publications (1)

Publication Number Publication Date
JPS55150011A true JPS55150011A (en) 1980-11-21

Family

ID=13023864

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5632079A Pending JPS55150011A (en) 1979-05-10 1979-05-10 Process controller

Country Status (1)

Country Link
JP (1) JPS55150011A (en)

Similar Documents

Publication Publication Date Title
JPS5244387A (en) Power source switch circuit used for a remote-controlled electric apparatus
JPS55150011A (en) Process controller
JPS5614302A (en) Process control system
JPS5422074A (en) Switching control system
JPS52143638A (en) Control device for elevator
JPS5380929A (en) Memory unit
JPS52107741A (en) Peripheral control unit
JPS54139446A (en) Process mode control unit
JPS5394841A (en) Switching system for circuit corresponding part of communication control un it
JPS5474089A (en) Radiation unit
JPS55121501A (en) Sequence controller
JPS5432941A (en) Timing controller
JPS5246752A (en) Switch unit
JPS57189254A (en) Backup circuit for troubled part of control electronic computer
JPS5282126A (en) Start control system for data input unit
JPS54118970A (en) Controller for domestic machines and devices
JPS5367943A (en) Control device for air conditioner
JPS5665204A (en) Selective control unit
JPS5317261A (en) Contactless output relay
JPS51111940A (en) Heat control device for electronic range
JPS51120381A (en) Input circuit system for sequence controller
JPS5326529A (en) Input control circuit of contact switch
JPS5457080A (en) Control system
JPS5685972A (en) Connecting device
JPS5657103A (en) Preventing device for erroneous control of controlling computer