JPH02112044U - - Google Patents
Info
- Publication number
- JPH02112044U JPH02112044U JP2111689U JP2111689U JPH02112044U JP H02112044 U JPH02112044 U JP H02112044U JP 2111689 U JP2111689 U JP 2111689U JP 2111689 U JP2111689 U JP 2111689U JP H02112044 U JPH02112044 U JP H02112044U
- Authority
- JP
- Japan
- Prior art keywords
- slave station
- station
- power supply
- data
- communication device
- 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
- 239000003990 capacitor Substances 0.000 claims description 2
- 230000005856 abnormality Effects 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Description
第１図は本考案に係る通信装置の回路構成を示
す図。第２図は本考案の動作状態を示す電圧波形
図。第３図は従来の構成を示すブロツク図。
１……親局、２……子局、３……２本のケーブ
ル、９，１０……マイクロコンピユータ、１１，
１３，２７……トランジスタ、１９，２６……受
信部、２５……コンデンサ、１８，２８……抵抗
。
FIG. 1 is a diagram showing a circuit configuration of a communication device according to the present invention. FIG. 2 is a voltage waveform diagram showing the operating state of the present invention. FIG. 3 is a block diagram showing a conventional configuration. 1... Master station, 2... Slave station, 3... Two cables, 9, 10... Microcomputer, 11,
13, 27... Transistor, 19, 26... Receiving section, 25... Capacitor, 18, 28... Resistor.
Claims (1)
続し相互にデータ通信を行なう通信装置において
、親局１から子局２に２本のケーブル３，３を介
して直流電源を供給するとともに、親局１から子
局２にデータを送信する場合は、親局１から供給
する前記直流電源の電圧を送信データに応じ所定
の電圧レベルで変化させることで、直流電源上に
送信データを重畳し、子局２においては前記直流
電源を入力し、各部を駆動するとともに、直流電
源の入力ラインに直列に接続したコンデンサ２５
により直流電源上の電圧変化分を検出することで
、親局１から送信されるデータを受信し、子局２
から親局１へデータを送信する場合は、子局２で
消費する電流を送信データに応じて変化させ、親
局１では子局２で消費する電流の変化を検出する
ことにより、子局２から送信される通信データを
受信するように回路構成したことを特徴とする通
信装置。 ２ 子局２の動作に異常が発生し、正常な通信が
できない場合に、子局２へ供給する直流電源を一
時的に遮断あるいは電圧を低下させることにより
子局２の動作を停止し、再起動させることにより
子局２の動作を正常に戻すように回路構成したこ
とを特徴とする請求項１記載の通信装置。[Claims for Utility Model Registration] 1. In a communication device in which a master station 1 and a slave station 2 are connected by two cables 3, 3 to perform data communication with each other, two cables 3 are connected from the master station 1 to the slave station 2. , 3, and when transmitting data from the master station 1 to the slave station 2, the voltage of the DC power supply supplied from the master station 1 is varied at a predetermined voltage level according to the transmitted data. By doing so, the transmission data is superimposed on the DC power supply, and the slave station 2 inputs the DC power supply to drive each part, and also a capacitor 25 connected in series to the input line of the DC power supply.
By detecting the voltage change on the DC power supply, data sent from master station 1 is received, and slave station 2
When transmitting data from the slave station 1 to the master station 1, the current consumed by the slave station 2 is changed according to the transmitted data, and the master station 1 detects the change in the current consumed by the slave station 2. 1. A communication device characterized by having a circuit configured to receive communication data transmitted from a communication device. 2 If an abnormality occurs in the operation of the slave station 2 and normal communication cannot be performed, the operation of the slave station 2 is stopped by temporarily cutting off or lowering the voltage of the DC power supply supplied to the slave station 2, and the operation of the slave station 2 is restarted. 2. The communication device according to claim 1, wherein the communication device has a circuit configuration such that the operation of the slave station 2 is returned to normal when activated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2111689U JPH02112044U (en) | 1989-02-23 | 1989-02-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2111689U JPH02112044U (en) | 1989-02-23 | 1989-02-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02112044U true JPH02112044U (en) | 1990-09-07 |
Family
ID=31238061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2111689U Pending JPH02112044U (en) | 1989-02-23 | 1989-02-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02112044U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007525076A (en) * | 2003-06-26 | 2007-08-30 | アベット テクノロジーズ，エルエルシー | Method and system for bidirectional data transmission and power transmission |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58101590A (en) * | 1981-12-14 | 1983-06-16 | Tamura Electric Works Ltd | Signal transmission and reception system |
-
1989
- 1989-02-23 JP JP2111689U patent/JPH02112044U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58101590A (en) * | 1981-12-14 | 1983-06-16 | Tamura Electric Works Ltd | Signal transmission and reception system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007525076A (en) * | 2003-06-26 | 2007-08-30 | アベット テクノロジーズ，エルエルシー | Method and system for bidirectional data transmission and power transmission |
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