JPS5555267A - Diagnosis device of analog input device - Google Patents

Diagnosis device of analog input device

Info

Publication number
JPS5555267A
JPS5555267A JP12855378A JP12855378A JPS5555267A JP S5555267 A JPS5555267 A JP S5555267A JP 12855378 A JP12855378 A JP 12855378A JP 12855378 A JP12855378 A JP 12855378A JP S5555267 A JPS5555267 A JP S5555267A
Authority
JP
Japan
Prior art keywords
diagnosis
circuit
analog input
condenser
signals
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.)
Granted
Application number
JP12855378A
Other languages
Japanese (ja)
Other versions
JPS6050306B2 (en
Inventor
Seiji Onoki
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.)
Azbil Corp
Original Assignee
Azbil Corp
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 Azbil Corp filed Critical Azbil Corp
Priority to JP53128553A priority Critical patent/JPS6050306B2/en
Publication of JPS5555267A publication Critical patent/JPS5555267A/en
Publication of JPS6050306B2 publication Critical patent/JPS6050306B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)

Abstract

PURPOSE: To automate the diagnosis of an analog input device and provide this diagnosis device with a function of burn-out, by utilizing a holding circuit of analog input signals for diagnosis purpose.
CONSTITUTION: Signals from an analog input signal source 1 are supplied to a signal holding circuit 2 equipped with a filter function, the output is given to an input circuit 3 through a sampling switch SW1 switched ON-OFF by signals from a control circuit 5 and output corresponding to input is sent out. In this case, a condenser C1 in the circuit 2 receives DC currents from a reference voltage source 4 through a switch SW2 for change and is charged. In a diagnosis mode, the condenser is charged until the quantity of the charge of the condenser C1 reaches fixed value, charge is stopped, a discharge condition of the C1 is read by the output of the circuit 3 and the existence of the trouble of an input device is discriminated in response to the change.
COPYRIGHT: (C)1980,JPO&Japio
JP53128553A 1978-10-20 1978-10-20 Analog input device diagnostic device Expired JPS6050306B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53128553A JPS6050306B2 (en) 1978-10-20 1978-10-20 Analog input device diagnostic device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53128553A JPS6050306B2 (en) 1978-10-20 1978-10-20 Analog input device diagnostic device

Publications (2)

Publication Number Publication Date
JPS5555267A true JPS5555267A (en) 1980-04-23
JPS6050306B2 JPS6050306B2 (en) 1985-11-07

Family

ID=14987597

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53128553A Expired JPS6050306B2 (en) 1978-10-20 1978-10-20 Analog input device diagnostic device

Country Status (1)

Country Link
JP (1) JPS6050306B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006070435A1 (en) * 2004-12-27 2006-07-06 Orient Instrument Computer Co., Ltd. Magnetic recording medium recorded data erasing device, magnetic recording medium recorded data erasing method, and program for controlling magnetic recording medium recorded data erasing device
CN103682999A (en) * 2013-11-05 2014-03-26 株洲南车时代电气股份有限公司 Switch cabinet opening locking state distinguishing system
JP2015175676A (en) * 2014-03-14 2015-10-05 日立オートモティブシステムズ株式会社 Electronic control device
JP7237246B1 (en) * 2021-11-09 2023-03-10 三菱電機株式会社 Analog signal input device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5185769A (en) * 1975-01-06 1976-07-27 Hitachi Ltd

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5185769A (en) * 1975-01-06 1976-07-27 Hitachi Ltd

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006070435A1 (en) * 2004-12-27 2006-07-06 Orient Instrument Computer Co., Ltd. Magnetic recording medium recorded data erasing device, magnetic recording medium recorded data erasing method, and program for controlling magnetic recording medium recorded data erasing device
CN103682999A (en) * 2013-11-05 2014-03-26 株洲南车时代电气股份有限公司 Switch cabinet opening locking state distinguishing system
JP2015175676A (en) * 2014-03-14 2015-10-05 日立オートモティブシステムズ株式会社 Electronic control device
JP7237246B1 (en) * 2021-11-09 2023-03-10 三菱電機株式会社 Analog signal input device

Also Published As

Publication number Publication date
JPS6050306B2 (en) 1985-11-07

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