JPS61176606U - - Google Patents
Info
- Publication number
- JPS61176606U JPS61176606U JP5800685U JP5800685U JPS61176606U JP S61176606 U JPS61176606 U JP S61176606U JP 5800685 U JP5800685 U JP 5800685U JP 5800685 U JP5800685 U JP 5800685U JP S61176606 U JPS61176606 U JP S61176606U
- Authority
- JP
- Japan
- Prior art keywords
- output circuit
- signal
- controller
- neon tube
- circuit
- 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
- 229910052754 neon Inorganic materials 0.000 claims description 3
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 claims description 2
- 230000005856 abnormality Effects 0.000 claims 1
- 150000002806 neon Chemical class 0.000 claims 1
- 230000003287 optical effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Description
第１図は、この考案の一実施例によるデイジタ
ル出力回路、第２図は第１図に示す比較回路の詳
細図、第３図は従来のデイジタル出力回路である
。
１……出力モジユール、４……出力リレー、５
……出力リレー接点、８……ネオン管、９……ホ
トトランジスタ、１０……比較回路、１１，１２
……増幅器、１３……信号レベル比較回路、１４
……タイマー回路。なお、図中、同一符号は同一
または相当部分を示す。
FIG. 1 shows a digital output circuit according to an embodiment of the invention, FIG. 2 shows a detailed diagram of the comparison circuit shown in FIG. 1, and FIG. 3 shows a conventional digital output circuit. 1... Output module, 4... Output relay, 5
... Output relay contact, 8 ... Neon tube, 9 ... Phototransistor, 10 ... Comparison circuit, 11, 12
...Amplifier, 13...Signal level comparison circuit, 14
...Timer circuit. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.
Claims (1)
機械等の制御を行うコントローラのデイジタル出
力回路において、上記出力回路の出力リレー接点
と並列にネオン管を接続し、さらにこのネオン管
の光信号を電気信号に変える変換装置を設け、こ
の変換装置の電気信号と、上記出力リレーを動作
させるための信号とを比較する比較回路を設け、
この比較値の結果により上記出力回路の異常を検
出するように構成したことを特徴とするコントロ
ーラのデイジタル出力回路。 In the digital output circuit of a controller that controls machines, etc. according to pre-programmed commands, a neon tube is connected in parallel with the output relay contact of the output circuit, and the optical signal of this neon tube is converted into an electrical signal. A device is provided, and a comparison circuit is provided to compare the electric signal of the converter with a signal for operating the output relay,
A digital output circuit for a controller, characterized in that it is configured to detect an abnormality in the output circuit based on the result of the comparison value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5800685U JPS61176606U (en) | 1985-04-18 | 1985-04-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5800685U JPS61176606U (en) | 1985-04-18 | 1985-04-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61176606U true JPS61176606U (en) | 1986-11-04 |
Family
ID=30583086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5800685U Pending JPS61176606U (en) | 1985-04-18 | 1985-04-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61176606U (en) |
-
1985
- 1985-04-18 JP JP5800685U patent/JPS61176606U/ja active Pending