JPS54150563A - Analog output unit - Google Patents

Analog output unit

Info

Publication number
JPS54150563A
JPS54150563A JP5819278A JP5819278A JPS54150563A JP S54150563 A JPS54150563 A JP S54150563A JP 5819278 A JP5819278 A JP 5819278A JP 5819278 A JP5819278 A JP 5819278A JP S54150563 A JPS54150563 A JP S54150563A
Authority
JP
Japan
Prior art keywords
output unit
output
circuit
analog output
digital data
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
JP5819278A
Other languages
Japanese (ja)
Inventor
Yoshiyuki Saito
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 JP5819278A priority Critical patent/JPS54150563A/en
Publication of JPS54150563A publication Critical patent/JPS54150563A/en
Pending legal-status Critical Current

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  • Testing And Monitoring For Control Systems (AREA)

Abstract

PURPOSE:To enable an on-line diagnostic of the analog output unit, by means of making a comparison between the diagnostic hold circuit output and the analog reference signal, when processing a DA conversion of digital data to make the outputting through a sample holding circuit. CONSTITUTION:Digital data Di, outputted from an arithmetic control unit 1 to an analog output unit 2, is stored in a memory circuit 11. A sequentially scanning circuit 12 reads the digital data from the memory circuit 11 at a constant time interval to input it to a DA converter DA. The output e1 is selected to be renewed. Such operation is processed at every output point, simultaneously with the trouble shooting operated during one cycle of the period. For the trouble shooting is provided a hold circuit SH0, with this output compared with ananlog reference signal er, thus a trouble is detected of the analog output unit 2.
JP5819278A 1978-05-18 1978-05-18 Analog output unit Pending JPS54150563A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5819278A JPS54150563A (en) 1978-05-18 1978-05-18 Analog output unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5819278A JPS54150563A (en) 1978-05-18 1978-05-18 Analog output unit

Publications (1)

Publication Number Publication Date
JPS54150563A true JPS54150563A (en) 1979-11-26

Family

ID=13077147

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5819278A Pending JPS54150563A (en) 1978-05-18 1978-05-18 Analog output unit

Country Status (1)

Country Link
JP (1) JPS54150563A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6010304A (en) * 1983-06-30 1985-01-19 Mitsubishi Electric Corp Process input/output system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6010304A (en) * 1983-06-30 1985-01-19 Mitsubishi Electric Corp Process input/output system

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