如何使用C#中的System.IO.Bacnet库将数据写入BACnet设备的binaryOutput对象

Question

bacnetClient.Start();

BacnetAddress deviceAddress = new BacnetAddress(BacnetAddressTypes.IP, "10.20.30.250:47808");

BacnetObjectId objectId = new BacnetObjectId(BacnetObjectTypes.OBJECT_BINARY_OUTPUT, 2);

IList<BacnetValue> values;
         
bool success = bacnetClient.ReadPropertyRequest(deviceAddress, objectId, BacnetPropertyIds.PROP_PRESENT_VALUE, out values);

if (success)
{
      string presentValue = values[0].Value.ToString();
      Console.WriteLine($"Present Value: {presentValue}");
}
else
{
      Console>writeLine("Error occurred while reading from the device.")
}

uint value = 1;

IList<BacnetValue> valtowrite = new BacnetValue[1] { new BacnetValue(value) };
                       
bool successWrite = bacnetClient.WritePropertyRequest(deviceAddress, objectId, BacnetPropertyIds.PROP_PRESENT_VALUE, valtowrite );
if (successWrite)
{
    Console.WriteLine($"\nSuccessfully updated the status for OBJECT_BINARY_OUTPUT 2");
    bool successRead = bacnetClient.ReadPropertyRequest(deviceAddress, objectId, BacnetPropertyIds.PROP_PRESENT_VALUE, out values);

    if (successRead)
    {
        Console.WriteLine($"\nSuccessfully updated the status for OBJECT_BINARY_OUTPUT 2");
    }
    else { 
        Console.WriteLine("\n!! Error occured when reading from BACnet device. !!");
    }
}
else
{
    Console.WriteLine("\n !! Error occurred while writing to the bacnet device. !!");
}

在我的程序中，首先我启动了连接并从同一个对象读取值，它工作得很好。但是当我尝试写入值时，我收到一条错误消息

系统异常：设备拒绝，原因：INVALID_TAG
在System.IO.BACnet.BacnetClient.WritePropertyRequest（BacnetAddress adr，BacnetObjectId objectId，BacnetPropertyIds propertyId，IEnumerable`1 valueList，Byte invokeId）

我想写入（更新）BinaryOutput对象的值以更改其状态（活动/非活动）

Answer 1

我不知何故成功了。

using System.IO.BACnet;

BacnetClient bacnetClient = new BacnetClient(new BacnetIpUdpProtocolTransport(0xBAC0, false));

//start the connection with the network, which is connected with bacnet device
bacnetClient.Start();

// Define the BACnet address of the device
BacnetAddress deviceAddress = new BacnetAddress(BacnetAddressTypes.IP, "10.20.30.250:47808");

// Define the object identifier (e.g., Analog Input 1)
BacnetObjectId objectId = new BacnetObjectId(BacnetObjectTypes.OBJECT_BINARY_OUTPUT, 2);

UInt32 newStatus = 1;

// create BacnetValue variable to write, using WritePropertyRequest
BacnetValue valueToWrite = new BacnetValue(BacnetApplicationTags.BACNET_APPLICATION_TAG_ENUMERATED, newStatus);

//Sends a request to write the Present_Value property of the specified object.
bool successWrite = bacnetClient.WritePropertyRequest(deviceAddress, objectId, BacnetPropertyIds.PROP_PRESENT_VALUE, new[] { valueToWrite });
if (successWrite)
{
    Console.WriteLine($"\nSuccessfully updated the status for OBJECT_BINARY_OUTPUT 2");
}
else
{    
Console.WriteLine("\n !! Error occurred while writing to the bacnet device. !!");
}