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TypeScript ClientSession.getMonitoredItems方法代码示例

本文整理汇总了TypeScript中node-opcua.ClientSession.getMonitoredItems方法的典型用法代码示例。如果您正苦于以下问题:TypeScript ClientSession.getMonitoredItems方法的具体用法?TypeScript ClientSession.getMonitoredItems怎么用?TypeScript ClientSession.getMonitoredItems使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在node-opcua.ClientSession的用法示例。


在下文中一共展示了ClientSession.getMonitoredItems方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的TypeScript代码示例。

示例1: main


//.........这里部分代码省略.........
    console.log(" ----------------------------------------------------------  Create Subscription ");
    const parameters = {
        maxNotificationsPerPublish: 10,
        priority: 10,
        publishingEnabled: true,
        requestedLifetimeCount: 1000,
        requestedMaxKeepAliveCount: 12,
        requestedPublishingInterval: 2000
    };

    the_subscription = await the_session.createSubscription2(parameters);

    let t = getTick();

    console.log("started subscription :", the_subscription!.subscriptionId);
    console.log(" revised parameters ");
    console.log("  revised maxKeepAliveCount  ", the_subscription!.maxKeepAliveCount, " ( requested ", parameters.requestedMaxKeepAliveCount + ")");
    console.log("  revised lifetimeCount      ", the_subscription!.lifetimeCount, " ( requested ", parameters.requestedLifetimeCount + ")");
    console.log("  revised publishingInterval ", the_subscription!.publishingInterval, " ( requested ", parameters.requestedPublishingInterval + ")");

    the_subscription.on("internal_error", (err: Error) => {
        console.log(" received internal error", err.message);
    }).on("keepalive", () => {
        const t4 = getTick();
        const span = t4 - t;
        t = t4;
        console.log("keepalive ", span / 1000, "sec",
          " pending request on server = ", (the_subscription as any).getPublishEngine().nbPendingPublishRequests);

    }).on("terminated", () => { /* */
    });

    try  {
        const results1 = await the_session.getMonitoredItems(the_subscription.subscriptionId);
        console.log("MonitoredItems clientHandles", results1.clientHandles);
        console.log("MonitoredItems serverHandles", results1.serverHandles);
    }  catch(err) {
        console.log("Server doesn't seems to implement getMonitoredItems method ", err.message);
    }
    // get_monitored_item

    // monitor_a_variable_node_value
    console.log("Monitoring monitor_a_variable_node_value");

    // ---------------------------------------------------------------
    //  monitor a variable node value
    // ---------------------------------------------------------------
    console.log(" Monitoring node ", monitored_node.toString());
    const monitoredItem = ClientMonitoredItem.create(
      the_subscription,
      {
          attributeId: AttributeIds.Value,
          nodeId: monitored_node
      },
      {
          discardOldest: true,
          queueSize: 10000,
          samplingInterval: 1000
          // xx filter:  { parameterTypeId: "ns=0;i=0",  encodingMask: 0 },
      }
    );
    monitoredItem.on("initialized", () => {
        console.log("monitoredItem initialized");
    });
    monitoredItem.on("changed", (dataValue1: DataValue) => {
        console.log(monitoredItem.itemToMonitor.nodeId.toString(), " value has changed to " + dataValue1.value.toString());
开发者ID:node-opcua,项目名称:node-opcua,代码行数:67,代码来源:simple_client.ts


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