/// <summary>
/// Modbus读保持寄存器发送主机代码03H
/// </summary>
public static void timer2Action_SendFc03(byte address, ushort start, ushort registers, FrmMain fm)
{
if (fm.button1.Text == "关闭串口")
{
if (SendCount == 0)
{
if (frameDelayType == false)
{
SendCount = 1;
}
else
{
SendCount = 0;
}
ModbusRTU.BuildMessage(address, 0x03, start, registers, ref TxBuf);
ReadLenth = 2 * ModbusNumRegister + 5;//酱紫使用帧延时模式时只需要计算一次
fm.serialPort1.ReceivedBytesThreshold = ReadLenth;
}
if (ModbusTimeOut == 0)
{
if (frameDelayType == false)
{
SendCommand.SendBytes(TxBuf, TxBuf.Length, fm);
ModbusTimeOut = 1;
fm.timer1.Enabled = true;
SendCount = 0;
}
else
{
// byte[] Txtest = new byte[1];
Txtest[0] = TxBuf[SendCount++];
SendCommand.SendOneByte(Txtest, fm);
if (SendCount >= TxBuf.Length)
{//定时器1用来做帧延时，定时器2做Modbus超时
ModbusTimeOut = 1;
fm.timer1.Enabled = true;
SendCount = 0;
}
}
}
if (SerialRecOk == 1)
{
ModbusTimeOut = 0;
SerialRecOk = 0;
SendCount = 0;
fm.timer1.Enabled = false;
}
}
else
{
fm.timer2.Enabled = false;
fm.timer1.Enabled = false;
}
}
/// <summary>
/// 处理响应程序
/// </summary>
public static void DisposeResponse(byte functionCode, ushort registers, ref ushort[] returnValues, ref byte[] responseData, ushort responseDataLength, ref string CommMessage)
{
if (functionCode == 0x03)
{
// byte[] response = new byte[5 + 2 * registers];
if (ModbusRTU.CheckResponse(responseData, responseDataLength))
{
if (responseData[1] > 0x80)//属于不正常响应
{
ModbusRTU.AbnormalResult((byte)responseData[2], ref CommMessage);
// return false;
}
else
{
CommMessage = "正常";
for (int i = 0; i < (responseDataLength - 5) / 2; i++)
{
returnValues[i] = responseData[2 * i + 3];
returnValues[i] <<= 8;
returnValues[i] += responseData[2 * i + 4];
}
// return true;
}
}
else//CRC错误
{
CommMessage = "CRC错误";
/*
* //CRC错误也读数出来，避免显示0值
* for (int i = 0; i < (responseData.Length - 5) / 2; i++)
* {
* returnValues[i] = responseData[2 * i + 3];
* returnValues[i] <<= 8;
* returnValues[i] += responseData[2 * i + 4];
* }
* */
// return false;
}
}
if (functionCode == 0x10)
{
if (ModbusRTU.CheckResponse(responseData, responseDataLength))
{
if (responseData[1] > 0x80)//属于不正常响应
{
ModbusRTU.AbnormalResult((byte)responseData[2], ref CommMessage);
// return false;
}
else
{
CommMessage = "正常";
for (int i = 0; i < (responseDataLength - 4) / 4; i++)
{//返回起始地址和寄存器数量共4个字节,此处先减少为2，因为申请内存的问题
returnValues[i] = responseData[2 * i + 2];
returnValues[i] <<= 8;
returnValues[i] += responseData[2 * i + 3];
}
// return true;
}
}
else//CRC错误
{
CommMessage = "CRC错误";
/*
* //CRC错误也读数出来，避免显示0值
* for (int i = 0; i < (responseData.Length - 5) / 2; i++)
* {
* returnValues[i] = responseData[2 * i + 3];
* returnValues[i] <<= 8;
* returnValues[i] += responseData[2 * i + 4];
* }
* */
// return false;
}
}
}
/// <summary>
/// Modbus写保持寄存器发送主机代码10H
/// </summary>
public static void timer2Action_SendFc10(byte address, ushort start, ushort registers, ushort[] values, FrmMain fm)
{
if (fm.button1.Text == "关闭串口")
{//此处使用动态内存，当使用帧延时发送时会导致每次都算一遍数据
byte[] message = new byte[9 + 2 * registers];
message[6] = (byte)(registers * 2);
//字节计数，寄存器数量*2
message[6] = (byte)(registers * 2);
//保存的数据（需写入的数据）
for (int i = 0; i < registers; i++)
{
message[7 + 2 * i] = (byte)(values[i] >> 8);
message[8 + 2 * i] = (byte)(values[i]);
}
ModbusRTU.BuildMessage(address, 0x10, start, registers, ref message);
ReadLenth = 8;
fm.serialPort1.ReceivedBytesThreshold = ReadLenth;
if (SendCount == 0)
{
if (frameDelayType == false)
{
SendCount = 1;
}
else
{
SendCount = 0;
}
}
if (ModbusTimeOut == 0)
{
if (frameDelayType == false)
{
SendCommand.SendBytes(message, message.Length, fm);
ModbusTimeOut = 1;
fm.timer1.Enabled = true;
SendCount = 0;
}
else
{
// byte[] Txtest = new byte[1];
Txtest[0] = message[SendCount++];
SendCommand.SendOneByte(Txtest, fm);
if (SendCount >= message.Length)
{//定时器1用来做帧延时，定时器2做Modbus超时
ModbusTimeOut = 1;
fm.timer1.Enabled = true;
SendCount = 0;
}
}
}
if (SerialRecOk == 1)
{
ModbusTimeOut = 0;
SerialRecOk = 0;
SendCount = 0;
fm.timer1.Enabled = false;
}
}
else
{
fm.timer2.Enabled = false;
fm.timer1.Enabled = false;
}
}