FB_CXSimpleUps

The function block FB_CXSimpleUps can be used on the CX1000 or CX1020 in order to activate the UPS CX1190-UPS from the PLC. In this case the UPS settings must be deactivated in the TwinCAT System Manager.

Inputs

VAR_INPUT
    bDIPDisable     : BOOL;
    iDischargeLevel : USINT;
    tDelay          : TIME;
END_VAR

Name	Type	Description
bDIPDisable	BOOL	If bDIPDIsable = TRUE, then the position of the charge level switch on the UPS is ignored and iDischargeLevel is used instead.
iDischargeLevel	USINT	Discharge switch-off threshold: 0 = 100% (maximum discharge), 9 = 90%, 8 = 80%, ..., 2 = 20%, 1 = 10% (minimum discharge).
tDelay	TIME	Holding time before the shutdown is carried out. It is used to bridge short power failures (up to 10 s). After exceeding the holding time, the holding period is aborted. Internally the FB waits for 2.5 s. If the voltage has returned by then, the FB returns to normal operation, otherwise the system is shut down. If the voltage returns during or after shutdown, the CX automatically reboots after discharging and recharging the UPS.

Outputs

VAR_OUTPUT
    bPowerFailure      : BOOL;
    bShutdownActive    : BOOL;
    bUpsReady          : BOOL;
    b24VInOK           : BOOL;
    bHolding           : BOOL;
    tTimeUntilShutdown : TIME;
    eUpsState          : E_UPS_STATE;
END_VAR

Name	Type	Description
bPowerFailure	BOOL	Becomes TRUE when a power failure of the supply voltage is detected, becomes FALSE when the input voltage returns.
bShutdownActive	BOOL	Becomes TRUE as soon as the stop or shutdown is executed.
bUpsReady	BOOL	Becomes TRUE as soon as the 24 V input voltage is available.
b24VInOK	BOOL	Becomes TRUE as soon as the UPS provides the output voltage.
bHolding	BOOL	Becomes TRUE as soon as a failure in the supply voltage has been detected, and the holding time has not yet elapsed.
tTimeUntilShutdown	TIME	Indicates the holding time remaining until shutdown.
eUpsState	E_UPS_STATE	Displays the status of the UPS [UNDEF \| CHARGING \| CHARGED \| DISCHARGE \| DISCHARGE_RESTART \| OUTPUT_OFF \| OVERLOAD].

Configuration variables

VAR_CONFIG
    Ii24VState    AT %I* : BYTE;
    IiChargeState AT %I* : USINT;
    QiControl     AT %Q* : BYTE;
    QiDipControl  AT %Q* : USINT;
END_VAR

Name	Type	Description
Ii24VState	BYTE	Must be linked with input '24V State', see picture above.
IiChargeState	USINT	Must be linked with input 'Charge State', see picture above.
QiControl	BYTE	Must be linked with output 'Contol', see picture above.
QiDipControl	USINT	Must be linked with output 'DIP Ctrl', see picture above.

Requirements

Development environment	Target platform	PLC libraries to include
TwinCAT v3.1.0	CX (x86)	Tc2_SystemCX

	For other CX and PC please refer to the function block FB_S_SUPS_BAPI in the Tc2_SUPS library.