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   源码介绍

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Modbus Poll C# 源代码，支持虚拟通信，与Modbus Slave通讯。-Modbus Poll C# source code, support for virtual communication, and Modbus Slave communications.

    private void StartPoll()
        {
            pollCount = 0;

            //Open COM port using provided settings:
            if (mb.Open(lstPorts.SelectedItem.ToString(), Convert.ToInt32(lstBaudrate.SelectedItem.ToString()),
                8, Parity.None, StopBits.One))
            {
                //Disable double starts:
                btnStart.Enabled = false;
                dataType = lstDataType.SelectedItem.ToString();

                //Set polling flag:
                isPolling = true;

                //Start timer using provided values:
                timer.AutoReset = true;
                if (txtSampleRate.Text != "")
                    timer.Interval = Convert.ToDouble(txtSampleRate.Text);
                else
                    timer.Interval = 1000;
                timer.Start();
            }

            lblStatus.Text = mb.modbusStatus;
        }