--- a/targets/Xenomai/plc_Xenomai_main.c	Sun Mar 11 19:42:14 2012 +0100
+++ b/targets/Xenomai/plc_Xenomai_main.c	Sun Mar 11 22:00:15 2012 +0100
@@ -75,7 +75,7 @@
 {
     PLC_SetTimer(Ttick, Ttick);
 
-    while (1) {
+    while (!PLC_shutdown) {
         PLC_GetTime(&__CURRENT_TIME);
         __run();
         if (PLC_shutdown) break;