/// <summary>
/// 写变量
/// </summary>
/// <param name="aModbusItem">变量</param>
/// <param name="aValue">值</param>
/// <returns>是否写成功</returns>
public bool WriteItem(ref ModbusItem aModbusItem, Iolist aValue)
{
//如果值相等则不需再重写
//if (aModbusItem.Value.ToString().Trim() == "" || aValue.Values.Value.ToString().Trim() == "")
// return false;
if (aModbusItem.Value.ToString() == aValue.Values.Value.ToString() &&
Convert.ToDecimal(aValue.Values.Value) != decimal.MaxValue)
{
return(false);
}
//if (aModbusItem.Direction == RwDirection.ReadWrite
// && (aValue.TagName == "FormerBreakageCount")
// || aValue.TagName == "RunCounting"
// || aValue.TagName == "StopCounting")
//{
// Log.WriteLog(Host.ToString() + "MODBUS WriteJob : " + aValue.TagName
// + " , " + aValue.TagCode
// + " , " + aModbusItem.Value
// + " , " + aValue.Values.ModbusValue.ToString()
// + " , " + aValue.Values.Value.ToString()
// + " , " + aValue.Values.OPCValue.ToString()
// + " , " + aModbusItem.Status.ToString());
//}
//写圈或写寄存器模式
CoilOrRegister iCoilOrRegiterMode = CoilOrRegister.Register;
//写长度
UInt16 uint16WriteLenth = 0;
//写缓存
byte[] bWriteBuffer = new byte[0];
//写数值
ItemValue ivItemValue = new ItemValue();
//判断数据类型
switch (aModbusItem.ItemType)
{
//WORD类型打包
case "WORD":
ivItemValue.Word = Convert.ToInt16(aValue.Values.Value.ToString());
bWriteBuffer = new byte[2];
bWriteBuffer[0] = ivItemValue.B1;
bWriteBuffer[1] = ivItemValue.B0;
uint16WriteLenth = 1;
break;
//DWORD类型打包
case "DWORD":
ivItemValue.DWord = Convert.ToInt32(aValue.Values.Value.ToString());
bWriteBuffer = new byte[4];
bWriteBuffer[0] = ivItemValue.B1;
bWriteBuffer[1] = ivItemValue.B0;
bWriteBuffer[2] = ivItemValue.B3;
bWriteBuffer[3] = ivItemValue.B2;
uint16WriteLenth = 2;
break;
//FLOAT类型打包
case "FLOAT":
ivItemValue.Float = (float)Convert.ToDouble(aValue.Values.Value.ToString());
bWriteBuffer = new byte[4];
bWriteBuffer[0] = ivItemValue.B1;
bWriteBuffer[1] = ivItemValue.B0;
bWriteBuffer[2] = ivItemValue.B3;
bWriteBuffer[3] = ivItemValue.B2;
uint16WriteLenth = 2;
break;
//STRING类型打包
case "STRING":
//数值转换为字符串
string strValue = Convert.ToString(aValue.Values.Value.ToString());
//缓存
bWriteBuffer = new byte[10];
//char[] cBuffer = new char[10];
//数据打包
for (int i = 0; i < bWriteBuffer.Length && i < strValue.Length; i++)
{
bWriteBuffer[i] = (byte)strValue[i];
}
//Array.Copy((byte[])cBuffer, 0, bWriteBuffer, 0, 10);
uint16WriteLenth = 5;
break;
case "BOOLEAN":
iCoilOrRegiterMode = CoilOrRegister.Coil;
bWriteBuffer = new byte[1];
bWriteBuffer[0] = Convert.ToByte(aValue.Values.Value);
uint16WriteLenth = 1;
break;
default:
uint16WriteLenth = 0;
break;
}
//写
if (uint16WriteLenth > 0)
{
switch (iCoilOrRegiterMode)
{
case CoilOrRegister.Coil:
//写线圈
if (WriteSingleCoil(aModbusItem.SlaveID, aModbusItem.ItemAddress, Convert.ToUInt16(bWriteBuffer[0])) == uint16WriteLenth)
{
//更新值
aModbusItem.Value = aValue.Values.Value;
aModbusItem.UpdateTime = DateTime.Now;
return(true);
}
else
{
return(false);
}
//break;
case CoilOrRegister.Register:
//写寄存器
if (WriteMultipleRegisters(aModbusItem.SlaveID, aModbusItem.ItemAddress, uint16WriteLenth, bWriteBuffer) == uint16WriteLenth * 2)
{
//更新值
aModbusItem.Value = aValue.Values.Value;
aModbusItem.UpdateTime = DateTime.Now;
return(true);
}
else
{
return(false);
}
//break;
default:
return(false);
//break;
}
}
else
{
return(false);
}
//return true;
}
/// <summary>
/// 写变量
/// </summary>
/// <param name="aModbusItem">变量</param>
/// <param name="aValue">值</param>
/// <returns>是否写成功</returns>
public bool WriteItem(ref ModbusItem aModbusItem, Iolist aValue)
{
//如果值相等则不需再重写
if (aModbusItem.Value.ToString().ToUpper() == aValue.Values.Value.ToString().ToUpper()
&& Convert.ToDecimal(aValue.Values.Value) != decimal.MaxValue)
return false;
//写圈或写寄存器模式
CoilOrRegister iCoilOrRegiterMode = CoilOrRegister.Register;
//写长度
UInt16 uint16WriteLenth = 0;
//写缓存
byte[] bWriteBuffer = new byte[0];
//写数值
ItemValue ivItemValue = new ItemValue();
//判断数据类型
switch (aModbusItem.ItemType)
{
//WORD类型打包
case "WORD":
ivItemValue.Word = Convert.ToInt16(aValue.Values.Value.ToString());
bWriteBuffer = new byte[2];
bWriteBuffer[0] = ivItemValue.B1;
bWriteBuffer[1] = ivItemValue.B0;
uint16WriteLenth = 1;
break;
//DWORD类型打包
case "DWORD":
ivItemValue.DWord = Convert.ToInt32(aValue.Values.Value.ToString());
bWriteBuffer = new byte[4];
bWriteBuffer[0] = ivItemValue.B1;
bWriteBuffer[1] = ivItemValue.B0;
bWriteBuffer[2] = ivItemValue.B3;
bWriteBuffer[3] = ivItemValue.B2;
uint16WriteLenth = 2;
break;
//FLOAT类型打包
case "FLOAT":
ivItemValue.Float = (float)Convert.ToDouble(aValue.Values.Value.ToString());
bWriteBuffer = new byte[4];
bWriteBuffer[0] = ivItemValue.B1;
bWriteBuffer[1] = ivItemValue.B0;
bWriteBuffer[2] = ivItemValue.B3;
bWriteBuffer[3] = ivItemValue.B2;
uint16WriteLenth = 2;
break;
//STRING类型打包
case "STRING":
//数值转换为字符串
string strValue = Convert.ToString(aValue.Values.Value.ToString());
//缓存
bWriteBuffer = new byte[10];
//char[] cBuffer = new char[10];
//数据打包
for (int i = 0; i < bWriteBuffer.Length && i < strValue.Length; i++) bWriteBuffer[i] = (byte)strValue[i];
//Array.Copy((byte[])cBuffer, 0, bWriteBuffer, 0, 10);
uint16WriteLenth = 5;
break;
case "BOOLEAN":
iCoilOrRegiterMode = CoilOrRegister.Coil;
bWriteBuffer = new byte[1];
bWriteBuffer[0] = Convert.ToByte(aValue.Values.Value);
uint16WriteLenth = 1;
break;
default:
uint16WriteLenth = 0;
break;
}
//写
if (uint16WriteLenth > 0)
{
switch (iCoilOrRegiterMode)
{
case CoilOrRegister.Coil:
//写线圈
if (WriteSingleCoil(aModbusItem.SlaveID, aModbusItem.ItemAddress, Convert.ToUInt16(bWriteBuffer[0])) == uint16WriteLenth)
{
//更新值
aModbusItem.Value = aValue.Values.Value;
aModbusItem.UpdateTime = DateTime.Now;
return true;
}
else
{
return false;
}
//break;
case CoilOrRegister.Register:
//写寄存器
if (WriteMultipleRegisters(aModbusItem.SlaveID, aModbusItem.ItemAddress, uint16WriteLenth, bWriteBuffer) == uint16WriteLenth * 2)
{
//更新值
aModbusItem.Value = aValue.Values.Value;
aModbusItem.UpdateTime = DateTime.Now;
return true;
}
else
{
return false;
}
//break;
default:
return false;
//break;
}
}
else
{
return false;
}
//return true;
}
