MATLAB脚本调用​TCP/IP函数时不​报错，但在命令行窗口​调用或APP设计工具​中调用会报错，这是为​什么？

APP设计工具内的TCP/IP函数：

methods (Access = private)

% 用于数据传输（指令及反馈，TCP/IP）

function sensorFbk = dataTransmission(app, enable, controlMode, triggerEdge, cmdData, alarmReset, runTime)

% PLC连接信息

plcIP = "192.168.58.100";

plcPort = 8081;

% 初始化或检查连接

if isempty(app.tcpClient) || ~isvalid(app.tcpClient) || ...

~isequal(app.connectionInfo, [plcIP, plcPort])

% 关闭旧连接

if ~isempty(app.tcpClient) && isvalid(app.tcpClient)

delete(app.tcpClient);

end

app.tcpClient = [];

% 创建新连接

try

app.tcpClient = tcpclient(plcIP, plcPort, 'Timeout', 10);

app.connectionInfo = [plcIP, plcPort];

catch ME

error('PLC连接失败: %s', ME.message);

end

end

% 准备发送数据

sendData = int32(zeros(1, 14));

sendData([1, 8]) = enable;

sendData([2, 9]) = controlMode;

sendData([3:4, 10]) = triggerEdge;

sendData([5:7, 11:13]) = cmdData;

sendData(14) = alarmReset;

% 发送数据（带错误处理）

try

write(app.tcpClient, sendData, "int32");

catch

% 发送失败，尝试重连一次

delete(app.tcpClient);

app.tcpClient = [];

app.tcpClient = tcpclient(plcIP, plcPort, 'Timeout', 10);

write(app.tcpClient, sendData, "int32");

end

% 使系统稳定运行一段时间

pause(runTime);

% 读取返回数据

sensorFbk = read(app.tcpClient, 7, "int32");

flush(app.tcpClient);

end

end

此时，内部回调函数调用该函数时会报如下错误：

错误使用 AlgorithmIntegration/JointFrictionDataSendButtonPushed (第 2487 行)

PLC连接失败: Cannot create a communication link with the remote server. Please check the input arguments(ADDRESS and PORT) and make sure the server is running.

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请参阅 相关文档 了解故障排除步骤。