/// <summary>
/// 关闭处理
/// </summary>
private void CloseEvent()
{
try
{
if (mxComponentCla != null)
{
mxComponentCla.MxClose();
}
}
catch
{
}
}
private void KeepAlivePLC()
{
while (true)
{
int x = -1; short arrayval = 0;
taskint = Task.Factory.StartNew <int>(new Func <int>(() => { return(mxComponentCla.Read("M8000", out arrayval)); }));
bool bol = taskint.Wait(new TimeSpan(0, 0, 0, 3));
if (!bol)
{
connectionStatus = false;
this.Invoke(new Action(() => { label3.Text = "未连接"; label3.ForeColor = System.Drawing.Color.Red; }));
if (startStopProduct)
{
startStopProduct = false;
this.Invoke(new Action(() => { btn_conn.Enabled = true; }));
MessageBox.Show("PLC请求超时，请检查PLC连接状态，重启客户端", " 武汉镭立科技友情提示", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
else
{
x = taskint.Result;
if (x != 0)
{
connectionStatus = false;
this.Invoke(new Action(() => { label3.Text = "未连接"; label3.ForeColor = System.Drawing.Color.Red; }));
if (startStopProduct)
{
startStopProduct = false;
this.Invoke(new Action(() => { btn_conn.Enabled = true; }));
MessageBox.Show("PLC连接已断开，请检查PLC连接状态，重启客户端", " 武汉镭立科技友情提示", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
}
if (!connectionStatus)
{
if (mxComponentCla != null)
{
mxComponentCla.MxClose();
mxComponentCla = null;
}
mxComponentCla = new MxComponentCla(axActUtlType1, "9");
int m = mxComponentCla.MxOpen();
if (m == 0 && mxComponentCla.PlcSatte() == 1)
{
connectionStatus = true;
this.Invoke(new Action(() => { label3.Text = "已连接"; label3.ForeColor = System.Drawing.Color.Green; }));
}
else
{
connectionStatus = false;
this.Invoke(new Action(() => { label3.Text = "未连接"; label3.ForeColor = System.Drawing.Color.Red; }));
}
}
Thread.Sleep(2000);
}
}