JPH0358744U - - Google Patents
Info
- Publication number
- JPH0358744U JPH0358744U JP11708189U JP11708189U JPH0358744U JP H0358744 U JPH0358744 U JP H0358744U JP 11708189 U JP11708189 U JP 11708189U JP 11708189 U JP11708189 U JP 11708189U JP H0358744 U JPH0358744 U JP H0358744U
- Authority
- JP
- Japan
- Prior art keywords
- module
- signal
- light emitting
- optical signal
- response
- 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
- 230000003287 optical effect Effects 0.000 claims 4
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Bus Control (AREA)
- Small-Scale Networks (AREA)
Description
第１図は本考案に係る実施例を示す構造図、第
２図は実施例に係るデイジーチエーン接続回路の
実装状態を示す概略構造図、第３図は従来のデイ
ジーチエーン接続回路を示す構造図、第４図は従
来例の実装状態を示す概略構造図である。
２０ａ，２０ｂ，２０ｃ……モジユール、２１
……調停回路、２２ａ，２２ｂ，２２ｃ……受光
トランジスタ、２５ａ，２５ｂ，２５ｃ，２９…
…発光ダイオード。
Fig. 1 is a structural diagram showing an embodiment of the present invention, Fig. 2 is a schematic structural diagram showing a mounting state of a daisy chain connection circuit according to the embodiment, and Fig. 3 is a structural diagram showing a conventional daisy chain connection circuit. , FIG. 4 is a schematic structural diagram showing the mounting state of a conventional example. 20a, 20b, 20c...module, 21
... Arbitration circuit, 22a, 22b, 22c... Light receiving transistor, 25a, 25b, 25c, 29...
...Light emitting diode.
Claims (1)
答信号を複数のモジユールに上位から順次伝達し
、要求信号を出力したモジユールが前記応答信号
を受信するデイジーチエーン接続回路において、 各モジユールに設けられた光信号を受光する受
光手段と、 各モジユールに設けられ前記光信号を受光し自
ら前記要求信号を出力していないことにより光信
号を発する発光手段と、 前記調停回路に設けられ前記応答信号として光
信号を発する発光手段とを設け、 各モジユールの受光手段および発光手段は前記
調停回路の発光手段と最上位の受光手段とを結ぶ
直線上に配置したことを特徴とするデイジーチエ
ーン接続回路。[Claims for Utility Model Registration] A daisy chain connection circuit in which a response signal output from an arbitration circuit in response to a request signal is sequentially transmitted to a plurality of modules from a higher level, and the module that outputs the request signal receives the response signal. , a light receiving means provided in each module for receiving an optical signal; a light emitting means provided in each module for receiving the optical signal and emitting an optical signal when the module itself does not output the request signal; and the arbitration circuit. and a light emitting means for emitting an optical signal as the response signal, and the light receiving means and the light emitting means of each module are arranged on a straight line connecting the light emitting means of the arbitration circuit and the highest light receiving means. Daisy chain connection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11708189U JPH0358744U (en) | 1989-10-06 | 1989-10-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11708189U JPH0358744U (en) | 1989-10-06 | 1989-10-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0358744U true JPH0358744U (en) | 1991-06-07 |
Family
ID=31665320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11708189U Pending JPH0358744U (en) | 1989-10-06 | 1989-10-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0358744U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997000469A1 (en) * | 1995-06-19 | 1997-01-03 | Fanuc Ltd | Numerical controller |
| JP2001208567A (en) * | 1999-12-30 | 2001-08-03 | Osram Opt Semiconductors Gmbh & Co Offene Handels G | Optical encoder for quantitative detection of linear motion or rotational motion |
| WO2024024516A1 (en) * | 2022-07-29 | 2024-02-01 | ソニーグループ株式会社 | Communication device, drive device, display device, and communication method |
-
1989
- 1989-10-06 JP JP11708189U patent/JPH0358744U/ja active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997000469A1 (en) * | 1995-06-19 | 1997-01-03 | Fanuc Ltd | Numerical controller |
| US5940292A (en) * | 1995-06-19 | 1999-08-17 | Fanuc Ltd | Numerical control device including a thin type display unit and a printed circuit board connected to the reverse side thereof |
| JP2001208567A (en) * | 1999-12-30 | 2001-08-03 | Osram Opt Semiconductors Gmbh & Co Offene Handels G | Optical encoder for quantitative detection of linear motion or rotational motion |
| WO2024024516A1 (en) * | 2022-07-29 | 2024-02-01 | ソニーグループ株式会社 | Communication device, drive device, display device, and communication method |
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