修改报错问题。

source/DeviceLibrary/packageLine/PackageLine.cs

@@ -104,13 +104,23 @@ namespace OnlineStore.DeviceLibrary
             IOMove(IO_Type.R_LineRun, IO_VALUE.HIGH, lineRunTime);
 
             mainStep.ToNextStep(MAIN_STEP.RESET);
-            mainStep.AddTimeWait(lineRunTime+5000);
+            mainStep.AddTimeWait(lineRunTime + 5000);
             mainTimer.Enabled = true;
         }
 
 
+        private bool busyPro = false;
+        private DateTime busyProTime = DateTime.Now;
+        private int maxSeconds = 3;
         private void packageLineProcess(object sender, ElapsedEventArgs e)
         {
+            TimeSpan span = DateTime.Now - busyProTime;
+            if (busyPro && span.TotalSeconds < maxSeconds)
+            {
+                return;
+            }
+            try
+            {
                 if (mainStep.IsStep(MAIN_STEP.RUN))
                 {
                     try
@@ -130,7 +140,7 @@ namespace OnlineStore.DeviceLibrary
                         CheckA5State();
                         CheckA6State();
                     }
-                catch(Exception ex)
+                    catch (Exception ex)
                     {
                         LogUtil.error("packageLineProcess " + ex.ToString());
                     }
@@ -144,6 +154,15 @@ namespace OnlineStore.DeviceLibrary
                     }
                 }
             }
+            catch (Exception ex)
+            {
+                LogUtil.error(Name + "packageLineProcess 出错：", ex);
+            }
+            finally
+            {
+                busyPro = false;
+            }
+        }
 
         public override bool StartRun()
         {