JPS63147701U - - Google Patents
Info
- Publication number
- JPS63147701U JPS63147701U JP3828987U JP3828987U JPS63147701U JP S63147701 U JPS63147701 U JP S63147701U JP 3828987 U JP3828987 U JP 3828987U JP 3828987 U JP3828987 U JP 3828987U JP S63147701 U JPS63147701 U JP S63147701U
- Authority
- JP
- Japan
- Prior art keywords
- input circuit
- insulation separator
- input
- switching element
- interposing
- 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
- 238000009413 insulation Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 1
Landscapes
- Control By Computers (AREA)
- Programmable Controllers (AREA)
Description
第１図は本考案に係る入力回路が適用されたプ
ログラマブル・コントローラの入力ユニツトの構
成を示す回路図、第２図はプログラマブル・コン
トローラの制御手順の全体を示すフローチヤート
、第３図は従来の入力回路の構成を示す回路図で
ある。
４……電流制限抵抗、５……フオトカプラ（絶
縁分離器）、１０……バツフア回路、１１……フ
オトカプラ（スイツチング素子）、ＩＮ０〜ＩＮ
７……入力端子、ＣＯＭ……共通端子。
Fig. 1 is a circuit diagram showing the configuration of an input unit of a programmable controller to which the input circuit according to the present invention is applied, Fig. 2 is a flowchart showing the entire control procedure of the programmable controller, and Fig. 3 is a conventional one. FIG. 2 is a circuit diagram showing the configuration of an input circuit. 4...Current limiting resistor, 5...Photocoupler (insulation separator), 10...Buffer circuit, 11...Photocoupler (switching element), IN0~IN
7...Input terminal, COM...Common terminal.
Claims (1)
を介してコンピユータシステムに取込むようにし
た入力回路において、 前記絶縁分離器への入力ライン上に、システム
によりオンオフ制御が可能なスイツチング素子を
介挿したことを特徴とする入力回路。[Claims for Utility Model Registration] In an input circuit that inputs a voltage signal applied from the outside to a computer system via an insulation separator, an input line to the insulation separator is turned on and off by the system. An input circuit characterized by interposing a switching element that can be controlled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3828987U JPS63147701U (en) | 1987-03-16 | 1987-03-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3828987U JPS63147701U (en) | 1987-03-16 | 1987-03-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63147701U true JPS63147701U (en) | 1988-09-29 |
Family
ID=30850392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3828987U Pending JPS63147701U (en) | 1987-03-16 | 1987-03-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63147701U (en) |
-
1987
- 1987-03-16 JP JP3828987U patent/JPS63147701U/ja active Pending
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