当前位置: 首页>>代码示例>>TypeScript>>正文


TypeScript ClientSession.readVariableValue方法代码示例

本文整理汇总了TypeScript中node-opcua.ClientSession.readVariableValue方法的典型用法代码示例。如果您正苦于以下问题:TypeScript ClientSession.readVariableValue方法的具体用法?TypeScript ClientSession.readVariableValue怎么用?TypeScript ClientSession.readVariableValue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.readVariableValue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(" reconnecting to ", chalk.cyan.bold(endpointUrl));
    await client.connect(endpointUrl);

    let userIdentity: any; // anonymous
    if (argv.userName && argv.password) {

        userIdentity = {
            password: argv.password,
            userName: argv.userName
        };

    }

    the_session = await client.createSession(userIdentity);
    client.on("connection_reestablished", () => {
        console.log(chalk.bgWhite.red(" !!!!!!!!!!!!!!!!!!!!!!!!  CONNECTION RE-ESTABLISHED !!!!!!!!!!!!!!!!!!!"));
    });
    console.log(chalk.yellow(" session created"));
    console.log(" sessionId : ", the_session.sessionId.toString());

    client.on("backoff", (retry: number, delay: number) => {
        console.log(chalk.bgWhite.yellow("backoff  attempt #"), retry, " retrying in ", delay / 1000.0, " seconds");
    });
    client.on("start_reconnection", () => {
        console.log(chalk.bgWhite.red(" !!!!!!!!!!!!!!!!!!!!!!!!  Starting Reconnection !!!!!!!!!!!!!!!!!!!"));
    });

    // -----------------------------------------------------------------------------------------------------------
    //   NAMESPACE
    //   display namespace array
    // -----------------------------------------------------------------------------------------------------------
    const server_NamespaceArray_Id = makeNodeId(VariableIds.Server_NamespaceArray); // ns=0;i=2006

    const dataValue = await the_session.readVariableValue(server_NamespaceArray_Id);

    console.log(" --- NAMESPACE ARRAY ---");
    const namespaceArray = dataValue.value.value;
    for (const namespace of namespaceArray) {
        console.log(" Namespace ", namespace.index, "  : ", namespace);
    }
    console.log(" -----------------------");

    // -----------------------------------------------------------------------------------------------------------
    //   enumerate all EVENT TYPES
    // -----------------------------------------------------------------------------------------------------------
    const result = getAllEventTypes(the_session);
    console.log(chalk.cyan("---------------------------------------------------- All Event Types "));
    console.log(treeify.asTree(result, true));
    console.log(" -----------------------");

    // -----------------------------------------------------------------------------------------------------------
    //   Node Crawling
    // -----------------------------------------------------------------------------------------------------------
    let t1: number;
    let t2: number;

    function print_stat() {
        t2 = Date.now();
        const str = util.format("R= %d W= %d T=%d t= %d",
          client.bytesRead, client.bytesWritten, client.transactionsPerformed, (t2 - t1));
        console.log(chalk.yellow.bold(str));
    }

    if (doCrawling) {
        assert(_.isObject(the_session));
        const crawler = new NodeCrawler(the_session);
开发者ID:node-opcua,项目名称:node-opcua,代码行数:67,代码来源:simple_client.ts


注:本文中的node-opcua.ClientSession.readVariableValue方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。