MqttRpcDeviceReadFloatAsync 方法 (String) |
异步读取单浮点数据
Asynchronously read single floating point data
命名空间:
HslCommunication.MQTT
程序集:
HslCommunication (在 HslCommunication.dll 中) 版本:12.1.2.0 (12.1.2.0)
语法 public Task<OperateResult<float>> ReadFloatAsync(
string address
)
Public Function ReadFloatAsync (
address As String
) As Task(Of OperateResult(Of Single))
public:
virtual Task<OperateResult<float>^>^ ReadFloatAsync(
String^ address
) sealed
abstract ReadFloatAsync :
address : string -> Task<OperateResult<float32>>
override ReadFloatAsync :
address : string -> Task<OperateResult<float32>>
参数
- address
- 类型:SystemString
起始地址
返回值
类型:
TaskOperateResultSingle带有成功标识的float数据
实现
IReadWriteNetReadFloatAsync(String)示例
以下为三菱的连接对象示例,其他的设备读写情况参照下面的代码:
MelsecMcNet melsec_net = new MelsecMcNet( "192.168.0.100", 6000 );
float d100 = (await melsec_net.ReadFloatAsync( "D100" )).Content;
OperateResult<float> R_d100 = await melsec_net.ReadFloatAsync( "D100" );
if (R_d100.IsSuccess)
{
float value = R_d100.Content;
}
else
{
}
参见