private void Button1_MouseClick(object sender, MouseEventArgs e)
{
this.PeriodicRefreshTimer.Enabled = false;
ModbusRTU.SuspendRead((byte)_ReadFunctionCode, _ReadAddress, _ReadDataLengthInBit);//鼠标单击本控件后，进入写寄存器状态，暂停寄存器的读操作
switch (_ButtonClickAction)
{
case ModbusButtonClickActionEnum.Set:
ModbusRTU.MasterDataRepos.Coils[_WriteAddress] = true;
break;
case ModbusButtonClickActionEnum.Reset:
ModbusRTU.MasterDataRepos.Coils[_WriteAddress] = false;
break;
case ModbusButtonClickActionEnum.Toggle:
ModbusRTU.MasterDataRepos.Coils[_WriteAddress] = !ModbusRTU.MasterDataRepos.Coils[_WriteAddress];
break;
default:
break;
}
ModbusRTU.VoteToConfirmTransmitRegs('+', (byte)_WriteFunctionCode, _WriteAddress, _WriteDataLengthInBit);
ModbusRTU.AssembleRequestADU(1, ModbusRTU.LoadUnmannedBuses((byte)_WriteFunctionCode, 0));
ModbusRTU.ResumeRead((byte)_ReadFunctionCode, _ReadAddress, _ReadDataLengthInBit);//鼠标单击本控件后，进入写寄存器状态，暂停寄存器的读操作
PeriodicRefreshTimer.Enabled = true;
}
private void ModbusView_KeyPress(object sender, KeyPressEventArgs e)
{
if (e.KeyChar == (char)Keys.Enter) //如果按下了Enter键，则进入发数据状态
{
if (UInt16.TryParse(this.Text, out ModbusRTU.MasterDataRepos.StorageRegs[_WriteAddress]) == false) //TryParse 函数如果判断出所转换的字符串与所对应的数据格式不对应，会以0值out出来
{
this.Text = "Wrong Input";
return;
}
; // 需要改进，增加容错能力 考虑使用uint16.tryparse（）
ModbusRTU.VoteToConfirmTransmitRegs('+', (byte)_WriteFunctionCode, _WriteAddress, _WriteDataLengthInWord);
ModbusRTU.AssembleRequestADU(1, ModbusRTU.LoadUnmannedBuses((byte)_WriteFunctionCode, 0));
HideCaret(this.Handle);
PeriodicRefreshTimer.Enabled = true;
}
if (e.KeyChar == (char)Keys.Escape)//通过Esc键取消写操作，恢复周期性读数据状态
{
ModbusRTU.ResumeRead((byte)_ReadFunctionCode, _ReadAddress, _ReadDataLengthInWord);
HideCaret(this.Handle);
PeriodicRefreshTimer.Enabled = true;
}
}