JPS54104260A - Analog input system - Google Patents
Analog input systemInfo
- Publication number
- JPS54104260A JPS54104260A JP1058578A JP1058578A JPS54104260A JP S54104260 A JPS54104260 A JP S54104260A JP 1058578 A JP1058578 A JP 1058578A JP 1058578 A JP1058578 A JP 1058578A JP S54104260 A JPS54104260 A JP S54104260A
- Authority
- JP
- Japan
- Prior art keywords
- converter
- data
- process signal
- input
- time
- 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
Links
Landscapes
- Analogue/Digital Conversion (AREA)
Abstract
PURPOSE: To make it possible to collect data at a high speed paying attention to that when a process signal is in a stationary state, and its variation is a little.
CONSTITUTION: Computer CPU executes an input instruction by considering a process signal to be at an actuation time. On receiving the address of an input point, control part 505 controls multiplexer 501, sample holding circuit 502 holds the data of the point, and A/D converter 503 A/D-converts and sends out them to the CPU. When the process signal becomes stationary, the CPU sets data forecasted at the stationary time into random access memory 504. At every time when A/D converter 503 operates, control part 505 reads out data forecasted from an address in memory 504 equivalent to the input point and presets them to A/D converter 503, thereby comparing the difference with the input signal in sequence.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1058578A JPS54104260A (en) | 1978-02-03 | 1978-02-03 | Analog input system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1058578A JPS54104260A (en) | 1978-02-03 | 1978-02-03 | Analog input system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54104260A true JPS54104260A (en) | 1979-08-16 |
Family
ID=11754313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1058578A Pending JPS54104260A (en) | 1978-02-03 | 1978-02-03 | Analog input system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54104260A (en) |
-
1978
- 1978-02-03 JP JP1058578A patent/JPS54104260A/en active Pending
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