JPS63192748U - - Google Patents
Info
- Publication number
- JPS63192748U JPS63192748U JP8442687U JP8442687U JPS63192748U JP S63192748 U JPS63192748 U JP S63192748U JP 8442687 U JP8442687 U JP 8442687U JP 8442687 U JP8442687 U JP 8442687U JP S63192748 U JPS63192748 U JP S63192748U
- Authority
- JP
- Japan
- Prior art keywords
- control device
- remote monitoring
- input circuit
- input
- data input
- 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
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
Landscapes
- Electronic Switches (AREA)
- Logic Circuits (AREA)
- Dc Digital Transmission (AREA)
- Selective Calling Equipment (AREA)
Description
第１図は、本考案による一実施例を示す回路図
である。第２図は、従来の遠方監視制御装置のデ
ータ入力回路の例を示す回路図である。
１，２……表示出力回路、３……データ入力部
、４，５……定電流ダイオード、１０……中継器
、１１，１２……データ入力回路、１４，１５…
…逆流阻止用ダイオード、ＴＲ１……トランジス
タ、Ｐ１，Ｐ２，Ｐ３……ホトカプラ、Ｒ１，Ｒ
２，Ｒ３……抵抗器。
FIG. 1 is a circuit diagram showing an embodiment of the present invention. FIG. 2 is a circuit diagram showing an example of a data input circuit of a conventional remote monitoring and control device. 1, 2... Display output circuit, 3... Data input section, 4, 5... Constant current diode, 10... Repeater, 11, 12... Data input circuit, 14, 15...
... Reverse current blocking diode, TR 1 ... Transistor, P 1 , P 2 , P 3 ... Photocoupler, R 1 , R
2 , R3 ...Resistor.
Claims (1)
入力部において、入力信号の電流を制限する定電
流ダイオードを、各入力回路に挿入することを特
徴とする遠方監視制御装置のデータ入力回路。 1. A data input circuit for a remote monitoring and control device, characterized in that, in an input section for receiving a plurality of display signals of the remote monitoring and control device, a constant current diode for limiting the current of the input signal is inserted into each input circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8442687U JPS63192748U (en) | 1987-05-29 | 1987-05-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8442687U JPS63192748U (en) | 1987-05-29 | 1987-05-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63192748U true JPS63192748U (en) | 1988-12-12 |
Family
ID=30938916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8442687U Pending JPS63192748U (en) | 1987-05-29 | 1987-05-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63192748U (en) |
-
1987
- 1987-05-29 JP JP8442687U patent/JPS63192748U/ja active Pending