- Removed SCStart/EndBuffering as far as possible and fixed an issue with

the capture command in that it not put resluts into the Tcl interpreter.
  This broke scriptcontext scripts in complicated situations.
- Resolved some issues with the TAS calculation and negative scattering sense.
- Fixed a bug which did not reset the state to idle after checking
  reachability in confvirtualmot.c

tasscan.c

@@ -1315,6 +1315,7 @@ int TASScan(SConnection * pCon, SicsInterp * pSics, void *pData,
   int i, status, iPtr, iTas;
   time_t iDate;
   struct tm *psTime;
+  float ach;
 
   /* 
      check authorization
@@ -1456,6 +1457,14 @@ int TASScan(SConnection * pCon, SicsInterp * pSics, void *pData,
     SCWrite(pCon, pLine, eLog);
   }
 
+  /*
+    check ACH
+  */
+  ach = readDrivable("ach",pCon);
+  if(ach < .05) {
+    SCWrite(pCon,"WARNING: Analyser is flat",eWarning);
+  }
+
   /*
      set our scan functions
    */