private void ReadOmron()
{
try
{
if (Omron.ConnectionState)
{
object value;
Omron.ReadTagValue(txt_node.Text, out value);
lbl_result.Text = "结果：" + value.ToString();
return;
}
lbl_result.Text = "结果：连接断开";
}
catch (Exception ex)
{
lbl_result.Text = "结果：读取异常！原因：" + ex.Message;
}
}
private void PC_PLC_SignalExchange_Omron(CancellationToken token, bool v)
{
while (!token.IsCancellationRequested)
{
#region 判断plc是否断线
if (!IsConnectPLC)
{
UpdateShowMessage("正在连接PLC……");
new Task(() => ConnectOmronPLC()).Start();
Thread.Sleep(3000);
continue;
}
#endregion
Thread.Sleep(1);
#region 发送握手信号
if (IsHandshake)
{
if (IsStart)
{
IsOne = !IsOne;
PLCPulse = IsOne ? 1 : 2;
IsHandshake = false;
bool back = false;
back = PLCOmron.WriteTagValue(null, PLCPulse);
if (!back)
{
IsConnectPLC = false;
PLCPulse = 0;
}
}
else
{
PLCPulse = 0;
}
}
#endregion
#region 与PLC 交互
if (v)
{
try
{
object isRead;
PLCOmron.ReadTagValue(null, out isRead);
ReadTRG = (1 == (int)isRead) ? 1 : 0;
if (1 != ReadTRG)
{
OldReadTRG = 0;
}
else
{
if (0 < ReadTRG - OldReadTRG)
{
//读取数据
ReadDataFromPLC_Omron();
}
OldReadTRG = 1;
}
}
catch (Exception ex)
{
UpdateShowMessage("读取PLC 数据异常:" + ex.Message);
LogHelper.Fatal("与plc交互异常！", ex);
}
}
#endregion
}
}