private bool ReadCollectionBit <T>(ref PLCDataCollection <T> plcDataCollection) where T : struct
{
string startAddr = plcDataCollection.FullStartAddress;
ushort uSize = (ushort)plcDataCollection.DataLength;
OperateResult <short[]> read = m_plc.ReadInt16(startAddr, uSize);
IsConnected = read.IsSuccess;
if (IsConnected)
{
byte[] byteData = new byte[uSize * 2];
for (int index = 0; index < uSize; index++)
{
byte[] tempByte = BitConverter.GetBytes(read.Content[index]);
byteData[index * 2 + 0] = tempByte[0];
byteData[index * 2 + 1] = tempByte[1];
}
System.Collections.BitArray bitArray = new System.Collections.BitArray(byteData);
int sAddr = plcDataCollection.StartAddr;
Type tType = typeof(T);
foreach (var d in plcDataCollection)
{
int index = ((d.Addr - sAddr) * 16) + d.Bit;
d.Data = (T)(ValueType)bitArray[index];
}
}
return(IsConnected);
}
private bool ReadCollectionNormal <T>(ref PLCDataCollection <T> plcDataCollection) where T : struct
{
string startAddr = plcDataCollection.FullStartAddress;
ushort uSize = (ushort)plcDataCollection.DataLength;
OperateResult <byte[]> read = m_plc.Read(startAddr, uSize);
IsConnected = read.IsSuccess;
if (IsConnected)
{
int sAddr = plcDataCollection.StartAddr;
DataType dType = plcDataCollection.DataType;
Type tType = typeof(T);
foreach (var d in plcDataCollection)
{
//根据数据类型为每个PLCData赋值
int index = d.Addr - sAddr;
switch (dType)
{
case DataType.BoolAddress:
d.Data = (T)(ValueType)m_plc.Transform.TransBool(read.Content, index);
break;
case DataType.Int16Address:
d.Data = (T)(ValueType)m_plc.Transform.TransInt16(read.Content, index * 2);
break;
case DataType.Int32Address:
d.Data = (T)(ValueType)m_plc.Transform.TransInt32(read.Content, index * 2);
break;
case DataType.Int64Address:
d.Data = (T)(ValueType)m_plc.Transform.TransInt64(read.Content, index * 2);
break;
case DataType.Float32Address:
d.Data = (T)(ValueType)m_plc.Transform.TransSingle(read.Content, index * 2);
break;
case DataType.Double64Address:
d.Data = (T)(ValueType)m_plc.Transform.TransDouble(read.Content, index * 2);
break;
default:
d.Data = default(T);
break;
}
}
}
return(IsConnected);
}
/// <summary>
/// 读取一个PLC数据集
/// </summary>
/// <param name="plcDataCollection"></param>
/// <returns></returns>
public bool ReadCollection <T>(ref PLCDataCollection <T> plcDataCollection) where T : struct
{
if (plcDataCollection.DataLength <= 0 ||
plcDataCollection.DataLength > ushort.MaxValue)
{
return(false);
}
if (plcDataCollection.IsBitCollection)
{
return(ReadCollectionBit(ref plcDataCollection));
}
return(ReadCollectionNormal(ref plcDataCollection));
}
/// <summary>
/// 添加或更新内部数据集合
/// </summary>
/// <param name="key"></param>
/// <param name="collection"></param>
public void AddCollection <T>(int key, PLCDataCollection <T> collection) where T : struct
{
m_plcDataCollectionDictionary.AddOrUpdate(key, collection, (oldkey, oldvalue) => collection);
}
