JPH022779A - Data communication control system - Google Patents
Data communication control systemInfo
- Publication number
- JPH022779A JPH022779A JP63149555A JP14955588A JPH022779A JP H022779 A JPH022779 A JP H022779A JP 63149555 A JP63149555 A JP 63149555A JP 14955588 A JP14955588 A JP 14955588A JP H022779 A JPH022779 A JP H022779A
- Authority
- JP
- Japan
- Prior art keywords
- communication control
- host computer
- information storage
- storage part
- control processing
- 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
- 238000004891 communication Methods 0.000 title claims abstract description 29
- 230000005540 biological transmission Effects 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はデータ通信システムにおけるデータ通信制御方
式に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a data communication control method in a data communication system.
従来、この種のデータ通信制御方式では、送信側のホス
トコンピュータから定期的にデータの送信を行い、受信
側のホストコンピュータで一定時間内にデータを受信す
ることにより、回線の状態を監視していた。Conventionally, in this type of data communication control method, the transmitting host computer periodically sends data, and the receiving host computer receives the data within a certain period of time to monitor the line status. Ta.
上述した従来の方式では、ホストコンピュータが常に回
線の状態を監視する為、データを送受信し、負荷が大き
くなるということと、ホストコンピュータ間の通信によ
って相手局の内部状態情報を得るので時間がかかるとい
う欠点がある。In the conventional method described above, the host computer constantly monitors the line status, which results in a heavy load due to data transmission and reception, and it takes time to obtain internal status information of the other station through communication between host computers. There is a drawback.
本発明のデータ通信制御方式は、ホストコンピュータと
通信制御処理部とにより構成されるデータ通信システム
において、送信側は前記ホストコンピュータの内部状態
情報を定期的に送信する通信制御手段を備え、受信側は
前記内部状態情報を受信しデータ回線状態と一緒にして
受信メモリに記憶する手段と前記ホストコンピュータか
ら前記受信メモリを読み出す手段とを備える。In the data communication control system of the present invention, in a data communication system constituted by a host computer and a communication control processing section, the transmitting side includes communication control means for periodically transmitting internal state information of the host computer, and the receiving side comprises means for receiving the internal state information and storing it together with the data line state in a receiving memory, and means for reading the receiving memory from the host computer.
次に、本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.
本発明の一実施例を示す図を参照すると、ホストコンピ
ュータ４が持つ送信情報記憶部５の内容を通信制御処理
部３が一定時間毎に送信する。通信制御処理部２がその
情報を受信し、受信情報記憶部６に記憶する。また、通
信制御処理部２は通信制御処理部３との通信の際、デー
タ回線９の状態を判断し、それも受信情報記憶部６に保
持する。ホストコンピュータ１は受信情報記憶部６を読
み出すことによってデータ回線９の状態と送信情報記憶
部５の内容と得ることができる。同様に、逆方向につい
ても、ホストコンピュータ１が持つ送信情報記憶部８の
内容を通信制御処理部２が一定時間毎に送信する０通信
制御処理部３がその情報を受信し、受信情報記憶部７に
記憶する。Referring to the diagram showing an embodiment of the present invention, the communication control processing section 3 transmits the contents of the transmission information storage section 5 of the host computer 4 at regular intervals. The communication control processing unit 2 receives the information and stores it in the received information storage unit 6. Furthermore, when communicating with the communication control processing section 3, the communication control processing section 2 determines the state of the data line 9 and also stores it in the received information storage section 6. The host computer 1 can obtain the status of the data line 9 and the contents of the transmission information storage section 5 by reading the reception information storage section 6. Similarly, in the reverse direction, the communication control processing section 2 transmits the contents of the transmission information storage section 8 of the host computer 1 at regular intervals.The communication control processing section 3 receives the information, and the reception information storage section Store in 7.
丈な、通信制御処理部３は通信制御処理部２との通信の
際、データ回線９の状態を判断し、それも受信情報記憶
部７に保持する。ホストコンピュータ４は受信情報記憶
部７を読み出すことによって、データ回線９の状態と送
信情報記憶部８の内容を得ることができる。During communication with the communication control processing section 2, the communication control processing section 3 judges the state of the data line 9 and also stores it in the received information storage section 7. By reading the reception information storage section 7, the host computer 4 can obtain the status of the data line 9 and the contents of the transmission information storage section 8.
以上説明したように本発明によれば、下位レベルの通信
制御処理部で一定時間毎に通信を行うことにより、ホス
トコンピュータの負荷を小さくでき、相手局の内部状態
情報を得る時間を短かくすることができる。As explained above, according to the present invention, the load on the host computer can be reduced by communicating at fixed intervals in the lower-level communication control processing unit, and the time required to obtain internal state information of the other station can be shortened. be able to.
図は本発明の一実施例を示す構成図である。
１．４・・・ホストコンピュータ、２，３・・・通信制
御処理部、５．８・・・送信情報記憶部、６，７・・・
受信情報記憶部、９・・・データ回線。The figure is a configuration diagram showing an embodiment of the present invention. 1.4...Host computer, 2,3...Communication control processing unit, 5.8...Transmission information storage unit, 6,7...
Reception information storage unit, 9... data line.
Claims (1)
るデータ通信システムにおいて、送信側は前記ホストコ
ンピュータの内部状態情報を定期的に送信する通信制御
手段を備え、受信側は前記内部状態情報を受信しデータ
回線状態と一緒にして受信メモリに記憶する手段と前記
ホストコンピュータから前記受信メモリを読み出す手段
とを備えることを特徴とするデータ通信制御方式。In a data communication system composed of a host computer and a communication control processing section, a transmitting side includes communication control means for periodically transmitting internal state information of the host computer, and a receiving side receives the internal state information and transmits data. A data communication control system comprising: means for storing the line state together with the receiving memory; and means for reading the receiving memory from the host computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63149555A JPH022779A (en) | 1988-06-16 | 1988-06-16 | Data communication control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63149555A JPH022779A (en) | 1988-06-16 | 1988-06-16 | Data communication control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH022779A true JPH022779A (en) | 1990-01-08 |
Family
ID=15477727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63149555A Pending JPH022779A (en) | 1988-06-16 | 1988-06-16 | Data communication control system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH022779A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6317287B1 (en) | 1995-04-07 | 2001-11-13 | Copal Company Limited | Motor with output shaft having lead screw portion and pre-load generating mechanism |
-
1988
- 1988-06-16 JP JP63149555A patent/JPH022779A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6317287B1 (en) | 1995-04-07 | 2001-11-13 | Copal Company Limited | Motor with output shaft having lead screw portion and pre-load generating mechanism |
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