JPS61128854U - - Google Patents
Info
- Publication number
- JPS61128854U JPS61128854U JP1178485U JP1178485U JPS61128854U JP S61128854 U JPS61128854 U JP S61128854U JP 1178485 U JP1178485 U JP 1178485U JP 1178485 U JP1178485 U JP 1178485U JP S61128854 U JPS61128854 U JP S61128854U
- Authority
- JP
- Japan
- Prior art keywords
- output
- selector
- dividing circuit
- frequency dividing
- transmission
- 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
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Programmable Controllers (AREA)
- Communication Control (AREA)
Description
第１図はこの考案の実施例を示すブロツク図、
第２図は第１図が適用されるＰＣのブロツク図、
第３図Ａ，Ｂは上記実施例の動作を述べるための
フローチヤートである。
１……発振器、２……分周回路、３……セレク
タ、４……ＭＰＵ、５……データ伝送部、６……
送受信部、７……直列データ通信装置。
Figure 1 is a block diagram showing an embodiment of this invention.
Figure 2 is a block diagram of a PC to which Figure 1 is applied;
FIGS. 3A and 3B are flowcharts for explaining the operation of the above embodiment. 1... Oscillator, 2... Frequency dividing circuit, 3... Selector, 4... MPU, 5... Data transmission unit, 6...
Transmitting/receiving section, 7... Serial data communication device.
Claims (1)
伝送インターフエイスを介して複数のリモート入
出力部に供給させる装置において、発振器と、こ
の発振器の出力を複数に分周する分周回路と、こ
の分周回路の各分周出力が与えられ、伝送距離に
応じて各分周出力を選択切換えるセレクタと、こ
のセレクタへ切換信号を与えるマイクロプロセツ
サとよりなり前記セレクタの出力をデータ伝送部
を介してリモート入出力部に供給し、全リモート
入出力部からの応答によりセレクタの出力を設定
して伝送速度を決定するようにしたことを特徴と
する伝送インターフエイス。 A device that supplies the output of a programmable controller to multiple remote input/output units via a remote transmission interface, which includes an oscillator, a frequency dividing circuit that divides the output of this oscillator into multiple frequencies, and each frequency dividing circuit of this frequency dividing circuit. It consists of a selector that receives an output, selects and switches each divided output according to the transmission distance, and a microprocessor that supplies a switching signal to this selector.The output of the selector is supplied to the remote input/output section via the data transmission section. A transmission interface characterized in that the transmission speed is determined by setting the output of the selector based on responses from all remote input/output sections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1178485U JPS61128854U (en) | 1985-01-30 | 1985-01-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1178485U JPS61128854U (en) | 1985-01-30 | 1985-01-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61128854U true JPS61128854U (en) | 1986-08-12 |
Family
ID=30494228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1178485U Pending JPS61128854U (en) | 1985-01-30 | 1985-01-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61128854U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010003041A (en) * | 2008-06-19 | 2010-01-07 | Koyo Electronics Ind Co Ltd | Programmable controller system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58117770A (en) * | 1981-12-30 | 1983-07-13 | Fujitsu Ltd | Switching contol system for high and low speed modem |
| JPS58164360A (en) * | 1982-03-24 | 1983-09-29 | Nec Corp | Data communication device |
| JPS59161956A (en) * | 1983-03-04 | 1984-09-12 | Omron Tateisi Electronics Co | Transmission controller |
-
1985
- 1985-01-30 JP JP1178485U patent/JPS61128854U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58117770A (en) * | 1981-12-30 | 1983-07-13 | Fujitsu Ltd | Switching contol system for high and low speed modem |
| JPS58164360A (en) * | 1982-03-24 | 1983-09-29 | Nec Corp | Data communication device |
| JPS59161956A (en) * | 1983-03-04 | 1984-09-12 | Omron Tateisi Electronics Co | Transmission controller |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010003041A (en) * | 2008-06-19 | 2010-01-07 | Koyo Electronics Ind Co Ltd | Programmable controller system |
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