BECKHOFF CX50x0 - Manual (Page 22)

Notes on the documentation
20 CX50x0 - Hardware Documentation
The tRecoverTime needs to be a little bit bigger than the maximum holding time of the UPS,
since the UPS will shut off even if the power supply is restored.
VAR_OUTPUT
VAR_OUTPUT
bPowerFailDetect : BOOL; (* TRUE while powerfailure is detected *)
eState : E_S_UPS_State; (* current ups state *)
END_VAR
bPowerFailDetect : TRUE if a power failure is detected; FALSE if the power supply is sufficiant.
eState : internal state of the function block, for the values see E_S_UPS_State.
VAR_GLOBAL
VAR_GLOBAL
eGlobalSUpsState : E_S_UPS_State; (* current ups state *)
END_VAR
eGlobalUpsState : internal state of the function block as a global copy of eState, for the values see
E_S_UPS_State.