松下PLC初始化&读写

if ((Location.Length > 0) && (Location.Length < 5))
{
string NumStr = Location.Substring(1);
m_PLCSerial.BaudRate = 9600;
//ShowLog("115200");
//ShowLog("PLC停止位");
m_PLCSerial.StopBits = StopBits.One;
}
#endregion
#region PLC读写
public void WritetoPLC(string Command, string Location, string SetValue, string HexDec)//WCS,0,999,Hex
{
// if (!m_PLCSerial.IsOpen) { m_PLCSerial.Open(); }
try
{
byte[] bytes = new byte[24];
#region CMD
else if (SetValue.Length == 6) { SetValue = SetValue.Substring(4, 2) + SetValue.Substring(2, 2) + SetValue.Substring(0, 2) + "00"; }
}
}
else if (Command == "WD")
{
//仅限给DT置位
//D 00200 00200 0010 (给DT200赋值 HEX(1000),最后四位为16进制,且前两位为低位,后两位为高位,所以"0010"其实是"1000")
else if (SetValue.Length == 8) { SetValue = SetValue.Substring(6, 2) + SetValue.Substring(4, 2) + SetValue.Substring(2, 2) + SetValue.Substring(0, 2); }
}
else
{
SetValue = Convert.ToString(Convert.ToInt32(SetValue), 16);
//ShowLog("停止位 1");
//ShowLog("PLC数据位");
m_PLCSerial.DataBits = 8;
//ShowLog("数据位8");
for (int i = 1; i <= 5 - Location.Length; i++) { ZeroString = (ZeroString + "0"); }
Location = (Location.Substring(0, 1).ToUpper() + (ZeroString + NumStr));
m_PLCSerial.PortName = CSU_1U2U.IniReadValue("system", "PLCCom");
ShowLog(m_PLCSerial.PortName);
//ShowLog("PLC波特率");
}
else if (Location.Length == 5)
{
CompleteCommand = ("%01#" + Command + Location + SetValue.ToString() + "**");
if ((Location.Length < 7))
{
string LocationStr = Location.Substring(1);
string LocationStr1 = Convert.ToString(Convert.ToInt32(LocationStr) + 1);
else if (SetValue.Length == 7) { SetValue = SetValue.Substring(5, 2) + SetValue.Substring(3, 2) + SetValue.Substring(1, 2) + "0" + SetValue.Substring(0, 1); }
else if (SetValue.Length == 3) { SetValue = SetValue.Substring(1, 2) + "0" + SetValue.Substring(0, 1)+ "00"+ "00"; }
else if (SetValue.Length == 4) { SetValue = SetValue.Substring(2, 2) + SetValue.Substring(0, 2)+ "00"+ "00"; }
string CompleteCommand = "";
if (Command == "WCS")
{
string ZeroString = "";
else if (SetValue.Length == 5) { SetValue = SetValue.Substring(3, 2) + SetValue.Substring(1, 2) + "0" +SetValue.Substring(0, 1) + "00"; }
if (!m_PLCSerial.IsOpen) { m_PLCSerial.Open(); }
//m_PLCSerial.Close();
ShowLog("PLC初始化完成");
}
else if ((SetValue.Length == 2)) { SetValue = SetValue + "00"; }
else if (SetValue.Length == 3) { SetValue = SetValue.Substring(1, 2) + "0" + SetValue.Substring(0, 1); }
if ((SetValue.Length == 1)) { SetValue = "0" + SetValue + "00"+ "00"+ "00"; }
else if (SetValue.Length == 2) { SetValue = (SetValue + "00"+ "00"+ "00"); }
//ShowLog("PLC校验位");
m_PLCSerial.Parity = Parity.Odd;
//ShowLog("奇校验");
//ShowLog("PLC换行");
if (HexDec == "Hex")
{
if ((SetValue.Length == 1)) { SetValue = "0" + SetValue + "00"; }
#region 初始化PLC
private void Init_PLC()
{
try
{
ShowLog("PLC初始化...");
//ShowLog("PLC串口号");
string ZeroStr = "";
for (int i = 1; i < 7 - Location.Length; i++) { ZeroStr = ZeroStr + "0"; }
Location = Location.Substring(0, 1).ToUpper() + ZeroStr + LocationStr + ZeroStr + LocationStr1;
m_PLCSerial.NewLine = "\r";
//ShowLog(@"换行\r");
MySleep(100);
//ShowLog("PLC串口打开中...");
catch (Exception ex)
{
ShowLog("PLC初始化失败,请检查串口连接!");
MessageBox.Show(ex.ToString());
}
CompleteCommand = ("%01#" + Command + Location + SetValue.ToString() + "**");
System.Windows.Forms.Application.DoEvents();
else if (SetValue.Length == 4) { SetValue = SetValue.Substring(2, 2) + SetValue.Substring(0, 2); }