diff --git a/solution/tc_project_app/GVLs/GVL_APP.TcGVL b/solution/tc_project_app/GVLs/GVL_APP.TcGVL
index 0da9a07..ec88f65 100644
--- a/solution/tc_project_app/GVLs/GVL_APP.TcGVL
+++ b/solution/tc_project_app/GVLs/GVL_APP.TcGVL
@@ -12,6 +12,7 @@ VAR_GLOBAL CONSTANT
     nPNEUMATIC_AXIS_NUM: UINT := 0; //Specifies the total number of pneumatic axes in the system
 
     //Pneumatic air pressure groups high and low limits
+    tTIME_PRESSURE_OUT_OF_RANGE: TIME := T#10S; //User defined allowed time in seconds for the duration of air pressure value fluctuation
     fLOW_LIMIT_AIR_PRESSURE1: REAL := 0; //User defined value in bar for low limit air pressure value for pneumatic axes group 1
     fHIGH_LIMIT_AIR_PRESSURE1: REAL := 0; //User defined value in bar for high limit air pressure value for pneumatic axes group 1
     fLOW_LIMIT_AIR_PRESSURE2: REAL := 0; //User defined value in bar for low limit air pressure value for pneumatic axes group 2