JPS60237744A - Communication control equipment - Google Patents
Communication control equipmentInfo
- Publication number
- JPS60237744A JPS60237744A JP59092917A JP9291784A JPS60237744A JP S60237744 A JPS60237744 A JP S60237744A JP 59092917 A JP59092917 A JP 59092917A JP 9291784 A JP9291784 A JP 9291784A JP S60237744 A JPS60237744 A JP S60237744A
- Authority
- JP
- Japan
- Prior art keywords
- communication
- control equipment
- communication control
- fault
- address
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L13/00—Details of the apparatus or circuits covered by groups H04L15/00 or H04L17/00
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Small-Scale Networks (AREA)
- Maintenance And Management Of Digital Transmission (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の技術分野〕
この発明は伝送路を介して接続された通信制御装置に関
し、特に通信手順を用いて相手と情報伝送を行う装置に
関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a communication control device connected via a transmission path, and particularly to a device that transmits information with a partner using a communication procedure.
従来この種の装置としてJI8C6362に示すような
処理を行うものがあった。第3図は通信システムの接続
図を示す。Slは同期ステーション、82〜S4は通信
制御装置で、同期ステーションS1に伝送路りを介して
リング状に直列接続され、同期ステーションの81から
の同期信号を受信してこれに同期をする。T1〜T3は
端末装置で、通信装置82〜84にそれぞれ接続され、
データの授受を行なう。Conventionally, there have been devices of this type that perform processing as shown in JI8C6362. FIG. 3 shows a connection diagram of the communication system. Sl is a synchronization station, and 82 to S4 are communication control devices, which are connected in series to the synchronization station S1 in a ring shape via a transmission line, and receive a synchronization signal from the synchronization station 81 and perform synchronization therewith. T1 to T3 are terminal devices connected to communication devices 82 to 84, respectively,
Send and receive data.
このような接続にある通信装置82〜S3は第1図に流
れ図で示すような伝送処理をそれぞれ実行する。説明を
簡単にするため、通信装置S2が通信装置S3にデータ
を伝送する場合について説明する。The communication devices 82 to S3 connected in this manner each execute a transmission process as shown in the flowchart of FIG. To simplify the explanation, a case will be described in which the communication device S2 transmits data to the communication device S3.
処理1は通信権の獲得処理であシ、伝送路L2使用する
前に必ず行う処理である。この処理1に(シ通信権が獲
得できると、通信する相手側(通信装置83)の状態の
間合せ処理2を行う。相手の状態はBUSY (通信不
可能)又はREADY (通信可能)でおる。この間合
せは伝送路りにあらかじめ決められた信号を乗せること
により行われるが、この間合せ信号に対しては相手の通
信制御装置S3も所定の応動を行う。この間に処理3の
送信するデータ揃えなどの準備を行い、相手よシのBU
SY又はREADYの状態返送を待つ。判断4ではその
返送がREADYかBUSYが判定する。ノー(N)即
ち、READYであればデータの送シ出しの処理5を行
い、処理6にてすべてのデータを送シ出した後、相手よ
りのACK信号又はNAC信号の返送を待つ。ここでA
CK信号とは正しくデータを受け取った時に返送し、N
AC信号とは各種のデータ検定などKよりエラーの検出
がされた時に相手側よシ返送されて来るものである。以
下、図示していないがその判別やそれぞれの状況に応じ
た処理が実行される〇判断4でイエス(Y)となるとB
USYの時の再開合せ処理7を行なう。Process 1 is a communication right acquisition process, and is a process that is always performed before using the transmission path L2. In addition to this process 1, when the communication right is acquired, processing 2 is performed to adjust the status of the communication partner (communication device 83).The status of the other party is BUSY (communication impossible) or READY (communication possible). .This alignment is performed by placing a predetermined signal on the transmission path, and the communication control device S3 of the other party also makes a predetermined response to this alignment signal.During this time, the data alignment to be transmitted in process 3 Make preparations such as
Wait for SY or READY status return. In judgment 4, it is determined whether the return is READY or BUSY. If NO (N), that is, READY, process 5 is performed to send data, and after all data is sent in process 6, it waits for the return of an ACK signal or NAC signal from the other party. Here A
The CK signal is a signal sent back when data is received correctly.
The AC signal is sent back from the other party when an error is detected by K, such as in various data verifications. Although not shown below, the determination and processing according to each situation are executed. If the result of judgment 4 is yes (Y), B
Perform rematch processing 7 when USY is present.
従来の装置拡前述のように、いろいろな処理を順次実行
し相手との通信を行うのみであったので、その処理の過
程において、伺らかの障害が発生し、異常処理を実行し
通信が不可能となった場合は、その障害の要因が装置そ
のものの故障や伝送路の異常、通信の相手局の異常、又
電気的外乱などと多岐に渡るために原因の京間や推定な
どに多大な時間や特殊な測定装置などを必要とする欠点
があった。Conventional equipment expansion As mentioned above, since various processes were executed sequentially and communication with the other party was performed, some kind of failure occurred during the processing process, causing abnormal processing to be executed and communication to be interrupted. If it becomes impossible, the cause of the failure is wide-ranging, including a failure of the device itself, an abnormality in the transmission path, an abnormality in the communication partner station, or electrical disturbance, so there may be a large amount of trouble in determining the cause or estimation. The disadvantages are that it requires a lot of time and special measuring equipment.
この発明は、上記のような従来のものとの欠点を除去す
るためになされたもので、通信制御装置の各処理の状態
を記憶しながら通信を行い、障害が発生したときは記憶
している処理の状態を調べ、どのような障害が発生し、
その原因はどこにあるのかを判別することKよシ、通信
に障害が発生した場合、その修復に資す時間や労力を最
少限にすることができる装置を提供できる。This invention was made in order to eliminate the drawbacks of the conventional ones as described above, and communicates while storing the status of each process of the communication control device, and remembers when a failure occurs. Check the processing status and find out what kind of failure occurred.
In addition to determining where the cause is, it is possible to provide a device that can minimize the time and effort required to repair a communication failure when it occurs.
この発明の処理の流れ図は第1図に示すものと同じであ
る。第2図は記憶部の割付けを示すマツプ図である。こ
の記憶部へは処理1の通信権の獲得処理が終れば、アド
レスA+Oに有意な符号、例えば11mを書き込む。The flowchart of the process of this invention is the same as that shown in FIG. FIG. 2 is a map diagram showing the allocation of storage units. When the acquisition of communication rights in process 1 is completed, a significant code, for example 11m, is written to address A+O in this storage unit.
処理2が終ればアドレスA+1を有意にする。以下順次
通信の各処理が終るたびにアドレスA−1−2〜A+N
を有意にしてゆく。When process 2 is completed, address A+1 is made significant. Addresses A-1-2 to A+N are sent to addresses A-1-2 to A+N each time each process of communication is completed.
make it significant.
この時、例えば相手側の応答がBUSYのため通信でき
ない状態が続いたとすると処理4〜Tの後に記録した有
意な符号をアドレスA+4〜A+7から読出すことによ
シ相手がBUSYのため通信が不可能であったことを知
ることができる。At this time, for example, if a situation continues in which communication is not possible because the other party's response is BUSY, by reading the significant codes recorded after processes 4 to T from addresses A+4 to A+7, communication will be disabled because the other party is BUSY. You can know that it is possible.
又、送信側の処理がどこまでなされたかの処理の状態や
本当K BUSYであったのか等の記録も読出すことに
より、さらKその原因の発生個所が明確になる。In addition, by reading records such as the state of processing, such as the extent to which the processing on the transmitting side has been completed, and whether or not it was a real K BUSY, the location where the cause of the K BUSY occurred can be further clarified.
なお、(a)記憶部の構成をアドレスA+O−A+Nと
して各処理の段階毎にアドレスを割付けたが、記憶部の
容量を少なくするためには、各処理の段階毎にビットを
割付けても同様の効果が達成できる〇(b)記憶部にア
ドレスやビット毎に処理の段階を割付けず、各段階に数
値をその処理が進むに従って大きく割付けると、障害が
発生′した時の数値が記憶でき、その処理の段階を知る
ことが可能である。Note that (a) the storage unit is configured with addresses A+O-A+N and addresses are allocated for each processing stage; however, in order to reduce the storage capacity, it is also possible to allocate bits for each processing stage. 〇 (b) If you do not assign processing stages to each address or bit in the storage unit, but instead assign numerical values to each stage as the processing progresses, the numerical value at the time of a failure cannot be memorized. , it is possible to know the stage of the process.
(1)記憶した内容の確認場合は、各通信制御装置82
〜S3において読出しできる手段を設けてもよいが、同
期ステーションs1に記憶部の内容を送信して同期ステ
ーションにおいて障害の発生個所を判9するこ)一本可
鮨〒あスー
〔発明の効果〕
以上のように1この発明によれば、従来の通信制御装置
内に処理状況を記憶する記憶部を設け、その内容を障害
発生時等に読出すことにょシ、障害の原因判定とその修
復に有効に利用でき、また特殊な測定機器等は不要とな
シ、この記憶内容を通信制御装置自身が用いて自己診断
等にも有効に使用可能となる効果がある。(1) When checking the memorized contents, each communication control device 82
Although it is possible to provide a means for reading out in S3, it is also possible to transmit the contents of the storage section to the synchronization station s1 and determine at the synchronization station the location where the failure has occurred. As described above, 1. According to the present invention, a storage section for storing processing status is provided in a conventional communication control device, and the contents can be read out when a failure occurs, and can be used to determine the cause of the failure and repair it. It can be used effectively, and there is no need for special measuring equipment, and the communication control device itself can use the stored contents effectively for self-diagnosis.
第1図は通信制御装置の処理の手順を示す流れ図、第2
図はこの発明の一実施例による通信制御装置の記憶部の
マツプ図、第3図は通信システムの接続図である。
1〜3,5〜1・・・処理、4・・・判断、A+O〜^
十N・・・アドレス、Sl・・・同期ステーション、8
2〜s3・・・通信制御装置。
特許出願人 三菱電機株式会社Figure 1 is a flowchart showing the processing procedure of the communication control device;
The figure is a map diagram of a storage section of a communication control device according to an embodiment of the present invention, and FIG. 3 is a connection diagram of a communication system. 1-3, 5-1...processing, 4...judgment, A+O~^
10N...Address, Sl...Synchronization station, 8
2-s3... Communication control device. Patent applicant Mitsubishi Electric Corporation
Claims (1)
、そのステップの実行に従ってセットされる状態記憶部
と、上記処理に異常が発生したときは上記状態記憶部に
記憶されている状態情報を調べる処理部とを備え、端末
装置間における通信を制御する通信制御装置。A state storage section is provided corresponding to each step of the process for communication, and is set according to the execution of that step, and when an abnormality occurs in the above processing, the state information stored in the state storage section is stored. A communication control device includes a processing unit for checking, and controls communication between terminal devices.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59092917A JPS60237744A (en) | 1984-05-11 | 1984-05-11 | Communication control equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59092917A JPS60237744A (en) | 1984-05-11 | 1984-05-11 | Communication control equipment |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS60237744A true JPS60237744A (en) | 1985-11-26 |
Family
ID=14067833
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP59092917A Pending JPS60237744A (en) | 1984-05-11 | 1984-05-11 | Communication control equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60237744A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008103952A (en) * | 2006-10-18 | 2008-05-01 | Fujitsu Ltd | Communication managing device and communication managing method |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58181345A (en) * | 1982-04-15 | 1983-10-24 | Matsushita Graphic Commun Syst Inc | Communication device |
-
1984
- 1984-05-11 JP JP59092917A patent/JPS60237744A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58181345A (en) * | 1982-04-15 | 1983-10-24 | Matsushita Graphic Commun Syst Inc | Communication device |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008103952A (en) * | 2006-10-18 | 2008-05-01 | Fujitsu Ltd | Communication managing device and communication managing method |
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