JPS59216344A - Diagnostic system of living/death of data switching network - Google Patents

Abstract

PURPOSE:To diagnose the whole of a network as dead or living concentratedly and efficiently by performing this diagnosis stepwise in a network monitor node. CONSTITUTION:A local node managing part 4 in a terminal connection node 2 diagnoses terminal control parts 6-1-6-3 as living or dead and sets results to a register 5 for storing living/death diagnostic results of terminal control parts. A node living/death diagnostic response part 7 is connected to this register 5 and a loop cable 3 and gathers living/death diagnostic results of terminal control parts in response to the living/death diagnosis from a network monitor node 1 and reports them to the network monitor node 1. A node living/death diagnosis control part 8 in the network monitor node 1 consists of a node living/death diagnostic command control circuit 10 and a display command circuit 11 and is provided with a function to perform the node living/death diagnosis for terminal connection nodes 2 successively as well as a function to instruct the circuit 11 that node living/death diagnostic results reported from node living/death diagnostic response parts of individual terminal connection nodes 2 are displayed on a display part 9.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a data exchange network life and death diagnosis method,
In particular, the present invention relates to a data exchange network life/death diagnosis method suitable for life/death diagnosis of a data exchange network composed of a network monitoring node and a plurality of terminal connection nodes each having a terminal control unit.

[The courage of invention]

In a conventional data exchange network in which a network monitoring node and a plurality of terminal connection nodes are connected by a loop cable, each terminal connection node has only one terminal control unit. In the data exchange network configured as described above, an IT network life/death diagnosis method is known in which 11 life/death diagnoses are performed from a network monitoring node to each terminal connection node.

However, if a terminal follower node has multiple terminal control units (for example, each terminal control unit has one microcomputer, and the terminal connection node has multiple terminals with this one microcomputer + tif111 unit) In a data exchange network with
There has been no new data exchange network life/death diagnosis method that efficiently performs life/death diagnosis of multiple terminal control units of each terminal connection node from a network monitoring node.

[Purpose of the invention]

The present invention has been made in view of the above points, and even when a terminal connection node has a plurality of terminal control units, life/death diagnosis can be efficiently performed from a network monitoring node to a plurality of terminal control units of each terminal connection node. The purpose of the present invention is to provide a data exchange network life and death diagnosis method that can be used to diagnose data.

[Summary of the invention]

The main point of the present invention is that when there are multiple terminal control units in a terminal subordinate node, the self-node management unit independently performs a life-or-death diagnosis for the terminals, and the life-or-death diagnosis results are sent to the network supervisory node/mono's own terminal. By reporting on the node life/death diagnosis for connected nodes, the life/death diagnosis of the entire network can be hierarchically performed by network monitoring nodes, and can be performed centrally and efficiently.

[Embodiments of the invention] An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of a data exchange network. In the same figure, 1&! A network monitoring node monitors a data exchange network; 2 is a terminal connection node; 3 is a rape cable 7 connecting between the monitoring node 1 and each terminal connection node 20;

FIG. 2 is a block diagram showing the internal configuration of the terminal connection node 2. As shown in FIG. In the same figure, the explanation will be omitted (in the following, the parts marked with numerals 1 and 1 indicate the same or corresponding parts) (hereinafter, the same applies to other drawings). 4 is a self-node management unit, 5 is a terminal control 'tIIS life/death diagnosis result storage register, 6-1 to 6-3 (respectively terminal control unit, 7
is the node life/death diagnosis response board μ.

The self-node management section 4 has a function of diagnosing whether the terminal control sections 6-1 to 6-3 are alive or dead and setting the results in the control section raw diagnosis result storage register 5.

Terminal control unit vitality diagnosis result storage register 5 & end, registers 5-1 to 5- corresponding to the terminal control units 6-1 to 6-3
3, and has the function of storing life/death diagnosis results corresponding to the terminal control unit.

Each of the terminal control units 6-1 to 6-3 is connected to the own node management unit 4 and has a response function and a terminal control function for responding to the terminal control unit life/death diagnosis from the n1 own node management unit 4.

The node life/death diagnosis response unit 7 is connected to the previous terminal control unit life b diagnosis result storage register 5 and the loop cable 3;
The terminal control unit has the function of sucking up the life/death diagnosis results of the network monitoring node 1 and communicating them to the network monitoring node 1.

FIG. 3 is a block diagram showing the internal configuration of the network monitoring node. In the figure, 8 is a node life/death diagnosis control section, and 9 is a display section.

The node generation diagnosis control unit 8 is composed of a node life/death diagnosis command control circuit 10 and a display command circuit 11, is connected to the loop cable 3 and the display unit 9, and has the function of sequentially performing node life/death diagnosis for each terminal connection node 2. It also has a function of issuing a command to display the node life/death results communicated from the node life/death diagnosis result part 7 of each terminal connection node 2 to the display part 9.

The display unit 9 has a function of displaying node life/death results.

The operation of the data exchange network configured as described above will be explained with reference to the time chart of FIG.

First, the terminal connection node 2 operates the terminal control unit 6--in the following order.
1 to 6-3 perform life and death diagnosis.

(1+ The terminal control unit life/death diagnosis frame is sent from the own node management unit 4 to the terminal system @ unit 6-1 (see 21 in FIG. 4).

(2) The life/death status response frame (see n in Figure 4) from the terminal 1u control unit 6-1 is viewed by the self-node management unit 4 car at a certain time. 1. End: Determine that the tree control unit 6-1 is dead, and set the death of the terminal control unit 6-1 in the register 5-1 of the terminal control unit life/death diagnosis result storage register 5. See 23 in FIG. ), if there is a response, the terminal controller 6-1 is set to live in the register 5-1 of the terminal controller life/death diagnosis result storage register 5.

(3) The terminal control unit 6-
(4) The above-mentioned processing is performed on the terminal control units 6-1 to 6-3 at regular time intervals to perform life-or-death diagnosis on the terminal control units 6-1 to 6-3.

The network monitoring node 1 performs the following processing independently of the terminal control unit life/death diagnosis for the terminal control unit 6 in the terminal connection node 2.

(1) Send a node life/death diagnosis frame from the node life/death diagnosis control unit 8 in the network monitoring node 1 to the terminal connection node 2 (see 27 in FIG. 4. From the register 5, the life/death diagnosis of the terminal control unit in the terminal connection node 2 Soak up the results (
See 28 in Figure 4 9゜ (3) Node life/death diagnostic equipment 6 @ section 7
sets the life/death diagnosis result of the terminal control unit in the terminal connection node 2 in the node life/death diagnosis response frame, and responds to the node life/death diagnosis control unit 8 of the network monitoring node 1 (see 9 in FIG. 4).

(4) The node life/death diagnosis command control circuit 10 in the node life/death diagnosis control unit 8 issues a display command to the display unit 9 as a node life/death diagnosis response frame rfL (see 30 in FIG. 4). Performs display processing.

(6) The above processes (1) to (6) are performed sequentially for each terminal connection node 2.

FIG. 5 is a flowchart showing the flow of operations of the terminal connection node 2.

From own node management unit 4 to terminal 111J control unit 6-1 to 6-3
A life-or-death diagnosis is performed on the person (step 31). Terminal control unit 6-
1 to 6-3 respond to the own node U-buried unit 4 with the alive/dead status (step 32). The self-node management unit 4 determines whether there is a response indicating the alive or dead state (step 33). If there is no response, it sets death in the terminal control unit life/death diagnosis result storage register 5 (step 34); if there is a response, The terminal control unit life/death diagnosis result storage register 5 is set to raw (step 35). It is determined in step 36) whether the life-or-death diagnosis has been performed for all terminal control units, and if the diagnosis has not been performed for all terminal control units, the process returns to step 31.

FIG. 6 is a flowchart showing the flow of operations of the network monitoring node.

A node life/death diagnosis frame is sent from the node life/death diagnosis control unit 8 to the terminal connection node 2 (step 40). The node life/death diagnosis response unit 7 sucks up the life/death diagnosis result of the terminal control unit from the terminal control unit life/death diagnosis result storage register 5 (step 41), and responds to the node life/death diagnosis control unit 8 (step 42). When the node life/death diagnosis control unit 8 receives the node life/death diagnosis frame (step 43), the display unit 9 issues a display command (step 44) and displays the display (step 45).

In step 46), it is determined whether or not the above steps 40 to 45 have been performed by all the terminal connection nodes.
If all the terminal connected nodes are 1, return to Step Off.

As shown in the operation of the above embodiment, the life and death diagnosis between the network monitoring node 1 and the terminal connection node 2, and the own node management section 4 and each terminal control section 6-1 to 6 in the terminal connection node 2, are performed.
- By carrying out the life-or-death diagnosis hierarchically between
The network monitoring node 1 efficiently diagnoses whether the multiple terminal control units 6-1 to 6-3 in the terminal connection node 2 are alive or dead.
can.

〔Effect of the invention〕

As explained above, the data exchange network life/death diagnosis method according to the present invention performs the life/death diagnosis from the network monitoring node to each terminal connection node and the life/death diagnosis within each terminal connection node independently and hierarchically. Therefore, it is possible to easily expand and change each diagnostic function without affecting each other, and even if there are multiple terminal control units in a terminal connection node, it is possible to easily expand or change each diagnostic function without affecting each other. It has excellent effects such as enabling efficient life-or-death diagnosis of multiple terminal control units.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an example of the configuration of a data exchange network to which the data exchange network life/death diagnosis method according to the present invention is applied, FIG. 2 is a block diagram showing the internal configuration of a terminal connection node, and FIG. FIG. 4 is a block diagram showing the internal configuration of the soak monitoring node, FIG. 4 is a diagram showing the operation of the data exchange network life/death diagnosis method according to the present invention, FIG. 5 is a diagram showing the flow of operation of the terminal connection node, and FIG. FIG. 3 is a diagram showing the flow of operations of a network monitoring node. DESCRIPTION OF SYMBOLS 1... Network monitoring node, 2... Terminal connection node, 3... Loop cabled management unit, 5... Terminal control unit birth/death diagnosis result storage register, 6-1 to 6-3... Terminal Control unit, 7...
Node life/death diagnosis response unit, 8... Node life/death diagnosis control unit, 9... Display unit, 10... Node life/death diagnosis command control circuit, 11... Display command circuit. Fang 5 diagram O 6 diagram

Claims (1)

[Claims] (1) In a data exchange network in which a network monitoring node and a plurality of terminal connection nodes are connected by a loop cable, each terminal connection node performs a life-or-death diagnosis of the terminal control unit included in the node. On the other hand, the network monitoring node has a node life/death diagnosis control unit that performs a life/death diagnosis for its own node management unit of each of the terminal connection nodes, and the network monitoring node has a life/death diagnosis for each terminal connection node. A data exchange network life/death diagnosis method characterized in that life/death diagnosis within each terminal connection node is performed independently and hierarchically.