JPH0447358B2 - - Google Patents
Info
- Publication number
- JPH0447358B2 JPH0447358B2 JP57193277A JP19327782A JPH0447358B2 JP H0447358 B2 JPH0447358 B2 JP H0447358B2 JP 57193277 A JP57193277 A JP 57193277A JP 19327782 A JP19327782 A JP 19327782A JP H0447358 B2 JPH0447358 B2 JP H0447358B2
- Authority
- JP
- Japan
- Prior art keywords
- digital
- current
- transmission line
- transmitter
- voltage drop
- 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.)
- Expired - Lifetime
Links
- 238000004891 communication Methods 0.000 claims description 104
- 230000005540 biological transmission Effects 0.000 claims description 55
- 238000000034 method Methods 0.000 claims description 26
- 230000008569 process Effects 0.000 claims description 25
- 230000004044 response Effects 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 15
- 239000003990 capacitor Substances 0.000 description 9
- 230000015654 memory Effects 0.000 description 8
- 230000008859 change Effects 0.000 description 6
- 230000007423 decrease Effects 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 241000270728 Alligator Species 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Arrangements For Transmission Of Measured Signals (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
- Time-Division Multiplex Systems (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/317,083 US4520488A (en) | 1981-03-02 | 1981-11-02 | Communication system and method |
| US317083 | 1981-11-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5885649A JPS5885649A (ja) | 1983-05-23 |
| JPH0447358B2 true JPH0447358B2 (US06174465-20010116-C00003.png) | 1992-08-03 |
Family
ID=23232038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57193277A Granted JPS5885649A (ja) | 1981-11-02 | 1982-11-02 | デ−タ通信装置およびデジタルデ−タとアナログデ−タを交互に通信する方法 |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS5885649A (US06174465-20010116-C00003.png) |
| CA (1) | CA1173927A (US06174465-20010116-C00003.png) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60119139A (ja) * | 1983-11-30 | 1985-06-26 | Yokogawa Hokushin Electric Corp | ２線式伝送器 |
| JPS60249441A (ja) * | 1984-05-24 | 1985-12-10 | Yokogawa Hokushin Electric Corp | 二線式デ−タ伝送装置 |
| JPH0744488B2 (ja) * | 1984-12-07 | 1995-05-15 | 横河電機株式会社 | 二線式デ−タ伝送装置 |
| US4607247A (en) * | 1985-08-12 | 1986-08-19 | The Babcock & Wilcox Company | On-line serial communication interface from a transmitter to a current loop |
| US4816703A (en) * | 1985-08-12 | 1989-03-28 | The Babcock & Wilcox Company | On-line serial communication interface from a current loop to a computer and/or terminal |
| US4729125A (en) * | 1985-08-12 | 1988-03-01 | The Babcock & Wilcox Company | On-line serial communication interface to a transmitter from a current loop |
| JPS6264804A (ja) * | 1985-09-05 | 1987-03-23 | Yokogawa Electric Corp | 信号伝送装置 |
| JP2735174B2 (ja) * | 1985-10-16 | 1998-04-02 | 株式会社日立製作所 | ２線式通信方法 |
| JPS6295485A (ja) * | 1985-10-22 | 1987-05-01 | Omron Tateisi Electronics Co | 検出センサ装置 |
| JPS62213439A (ja) * | 1986-03-14 | 1987-09-19 | Yamatake Honeywell Co Ltd | 通信方式 |
| JPS63167595A (ja) * | 1986-12-27 | 1988-07-11 | Hitachi Ltd | 二重化コミニユケ−タ |
| JPS63314700A (ja) * | 1987-06-17 | 1988-12-22 | Yokogawa Electric Corp | ２線式パルス伝送方式 |
| JPH0633723Y2 (ja) * | 1987-09-03 | 1994-08-31 | 山武ハネウエル株式会社 | 通信装置 |
| JPH01156418U (US06174465-20010116-C00003.png) * | 1988-04-21 | 1989-10-27 | ||
| JPH0650555B2 (ja) * | 1989-02-09 | 1994-06-29 | 株式会社日立製作所 | ４線式フイールド計器装置とその通信方法 |
| JP2580343B2 (ja) * | 1989-10-13 | 1997-02-12 | 株式会社日立製作所 | フィールド計器システム及びコミュニケータ |
| JP2007139793A (ja) * | 2006-12-25 | 2007-06-07 | Hitachi Ltd | 気体流量計 |
| DE102008041030A1 (de) * | 2008-08-06 | 2010-02-11 | Robert Bosch Gmbh | Vorrichtung und Verfahren zur Erfassung einer Messgröße |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4844364A (US06174465-20010116-C00003.png) * | 1971-05-15 | 1973-06-26 | ||
| JPS50156463A (US06174465-20010116-C00003.png) * | 1974-06-07 | 1975-12-17 | ||
| JPS5238807A (en) * | 1975-09-22 | 1977-03-25 | Hitachi Ltd | Signal transmission unit |
| JPS567588A (en) * | 1979-06-30 | 1981-01-26 | Matsushita Electric Works Ltd | Remote control unit for time sharing multiplex transmission |
-
1982
- 1982-06-22 CA CA000405695A patent/CA1173927A/en not_active Expired
- 1982-11-02 JP JP57193277A patent/JPS5885649A/ja active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4844364A (US06174465-20010116-C00003.png) * | 1971-05-15 | 1973-06-26 | ||
| JPS50156463A (US06174465-20010116-C00003.png) * | 1974-06-07 | 1975-12-17 | ||
| JPS5238807A (en) * | 1975-09-22 | 1977-03-25 | Hitachi Ltd | Signal transmission unit |
| JPS567588A (en) * | 1979-06-30 | 1981-01-26 | Matsushita Electric Works Ltd | Remote control unit for time sharing multiplex transmission |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5885649A (ja) | 1983-05-23 |
| CA1173927A (en) | 1984-09-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0447358B2 (US06174465-20010116-C00003.png) | ||
| US4520488A (en) | Communication system and method | |
| EP0101528B1 (en) | Improvements in 2-wire analog communication systems | |
| US6765968B1 (en) | Process transmitter with local databus | |
| JPS6290049A (ja) | ２線式通信方式 | |
| US20050201472A1 (en) | 4-20 mA interface circuit | |
| EP0213768A2 (en) | On-line serial communication interfaces | |
| US4607247A (en) | On-line serial communication interface from a transmitter to a current loop | |
| JPS60117939A (ja) | 情報伝送方式 | |
| EP0213767B1 (en) | Current loop arrangements | |
| US5184121A (en) | Field sensor communication method and system | |
| JPH0633723Y2 (ja) | 通信装置 | |
| EP0212897B1 (en) | On-line serial communication interfaces | |
| CN111294267A (zh) | 基于4-20mA电流环路的多机数据通信系统 | |
| JPS5821039Y2 (ja) | ２ センシキデンソウキ | |
| JP3205263B2 (ja) | 子機用電源装置 | |
| JPS63232694A (ja) | 通信装置 | |
| CN211381926U (zh) | 基于蓝牙控制的牙科激光治疗系统 | |
| JPH04273738A (ja) | 監視・制御装置 | |
| JP3307830B2 (ja) | パルス信号を出力する伝送器と通信端末器との通信方式 | |
| JPH0641400Y2 (ja) | 信号伝送装置 | |
| JPH02254599A (ja) | アナログ計測システムのデジタル伝送方法 | |
| JP2925483B2 (ja) | ２線式伝送器の通信装置 | |
| JP2504321B2 (ja) | 遠隔監視制御システム | |
| JPH01103033A (ja) | 電力線搬送システム |