JPS6437601A - Process output control device - Google Patents

Process output control device

Info

Publication number
JPS6437601A
JPS6437601A JP19367187A JP19367187A JPS6437601A JP S6437601 A JPS6437601 A JP S6437601A JP 19367187 A JP19367187 A JP 19367187A JP 19367187 A JP19367187 A JP 19367187A JP S6437601 A JPS6437601 A JP S6437601A
Authority
JP
Japan
Prior art keywords
pulse
analog signal
control
analog
cpu
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
JP19367187A
Other languages
Japanese (ja)
Inventor
Yukiaki Sakakiyama
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP19367187A priority Critical patent/JPS6437601A/en
Publication of JPS6437601A publication Critical patent/JPS6437601A/en
Pending legal-status Critical Current

Links

Landscapes

  • Safety Devices In Control Systems (AREA)

Abstract

PURPOSE:To improve the safety of control by outputting a pulse width signal from an arithmetic part formed in a CPU, executing the arithmetic processing of a control arithmetic result obtained by a CPU, outputting a pulse-like analog signal from an analog pulse output part, converting the pulse-like analog signal into analog signal through a decoder to control a plant. CONSTITUTION:It is supposed that a result controlled and computed by a CPU 10 e.g. is inputted as a plant control signal (analog) changing its amplitude from +100 to -100 with time. When the level is >=0, 75.0 is added, and in case of the level <=0, 25 is added. The added result is obtained as a waveform (D) and finally inputted to a decoder 14 as a pulse-like analog signal. Whether the pulse-like analog signal (waveform D) is continuously inputted or not is monitored by a pulse output part 13 to check the generation of abnormality.
JP19367187A 1987-08-04 1987-08-04 Process output control device Pending JPS6437601A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19367187A JPS6437601A (en) 1987-08-04 1987-08-04 Process output control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19367187A JPS6437601A (en) 1987-08-04 1987-08-04 Process output control device

Publications (1)

Publication Number Publication Date
JPS6437601A true JPS6437601A (en) 1989-02-08

Family

ID=16311845

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19367187A Pending JPS6437601A (en) 1987-08-04 1987-08-04 Process output control device

Country Status (1)

Country Link
JP (1) JPS6437601A (en)

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