public void ReadExample2( )
{
#region ReadExample2
MelsecFxSerial melsecFx = new MelsecFxSerial( );
melsecFx.SerialPortInni(sp =>
{
sp.PortName = "COM1";
sp.BaudRate = 9600;
sp.DataBits = 7;
sp.StopBits = System.IO.Ports.StopBits.One;
sp.Parity = System.IO.Ports.Parity.Even;
});
melsecFx.Open( );
OperateResult <byte[]> read = melsecFx.Read("D100", 4);
if (read.IsSuccess)
{
float temp = melsecFx.ByteTransform.TransInt16(read.Content, 0) / 10f;
float press = melsecFx.ByteTransform.TransInt16(read.Content, 2) / 100f;
int count = melsecFx.ByteTransform.TransInt32(read.Content, 2);
// do something
}
else
{
// failed
}
#endregion
}
private void button25_Click(object sender, EventArgs e)
{
try
{
OperateResult <byte[]> read = melsecSerial.Read(textBox6.Text, ushort.Parse(textBox9.Text));
if (read.IsSuccess)
{
textBox10.Text = "结果：" + HslCommunication.BasicFramework.SoftBasic.ByteToHexString(read.Content);
}
else
{
MessageBox.Show("读取失败：" + read.ToMessageShowString( ));
}
}
catch (Exception ex)
{
MessageBox.Show("读取失败：" + ex.Message);
}
}
public byte[] ReadBytes(DeviceAddress address, ushort size)
{
string addr;
addr = GetAddress(address);
try
{
lock (_async)
{
if (address.DBNumber < 3)
{
var read = _fxSerial.ReadBool(addr, (ushort)(size * 16));
if (read.IsSuccess)
{
byte[] retBytes = new byte[size * 2];
Buffer.BlockCopy(read.Content, 0, retBytes, 0, size * 2);
return(retBytes);
}
else
{
if (OnError != null)
{
OnError(this, new IOErrorEventArgs(read.Message));
}
return(null);
}
}
else
{
var read = _fxSerial.Read(addr, size);
if (read.IsSuccess)
{
return(read.Content);
}
else
{
if (OnError != null)
{
OnError(this, new IOErrorEventArgs(read.Message));
}
return(null);
}
}
}
}
catch (Exception e)
{
if (OnError != null)
{
OnError(this, new IOErrorEventArgs(e.Message));
}
return(null);
}
}
private void test5()
{
// The complex situation is that you need to parse the byte array yourself.
// Here's just one example.
OperateResult <byte[]> read = melsecSerial.Read("D100", 10);
if (read.IsSuccess)
{
int count = melsecSerial.ByteTransform.TransInt32(read.Content, 0);
float temp = melsecSerial.ByteTransform.TransSingle(read.Content, 4);
short name1 = melsecSerial.ByteTransform.TransInt16(read.Content, 8);
string barcode = Encoding.ASCII.GetString(read.Content, 10, 10);
}
}
public override object ReadTag(Tag tag)
{
if (tag.AccessType == TagAccessType.Read || tag.AccessType == TagAccessType.ReadWrite)
{
try
{
if (tag.TagType == "bool")
{
var res = PLC.ReadBool(tag.Address);
if (res.IsSuccess)
{
tag.TagValue = res.Content;
tag.Quality = Quality.Good;
}
else
{
tag.Quality = Quality.Bad;
}
}
else if (tag.TagType == "string")
{
if (tag.Address.Contains("."))
{
try
{
string address = tag.Address.Split('.')[0];
ushort len = Convert.ToUInt16(tag.Address.Split('.')[1]);
var res = PLC.ReadString(tag.Address.Split('.')[0], len);
if (res.IsSuccess)
{
tag.TagValue = res.Content.Replace("\0", "");
tag.Quality = Quality.Good;
}
else
{
tag.Quality = Quality.Bad;
}
}
catch (Exception)
{
LOG.Error($"Tag Address Error {tag.Address}");
}
}
else
{
LOG.Error($"Tag Address Error {tag.Address}");
}
}
else
{
ushort len = ConvertUtils.GetLength(tag);
var res = PLC.Read(tag.Address, len);
ConvertUtils.DecodeTagValue(tag, res);
}
return(tag.TagValue);
}
catch (Exception ex)
{
LOG.Error($"Datasource[{SourceName}] read error. Tag[{tag.TagName}] Address[{tag.Address}] Message[{ex.Message}]");
tag.TagValue = null;
tag.Quality = Quality.Bad;
return(tag.TagValue);
}
}
else
{
return(null);
}
}