Function Block Description

Function Block Description - AuxPumpCtrl

Pin Diagram

Brief Description

The AuxPumpCtrl function block is used for controlling and switching the auxiliary pump in times of low demand (during sleep mode) to avoid using the main pumps.

I/O Variables Description

Structure used for alarm handling. Refer to the structure data type description.

The table describes the input/output variables of the function block:

Input/Output	Data Type	Description
iq_stAlrmCtrl	stAlrmCtrl	Structure used for alarm handling. Refer to the structure data type description.
iq_stOpMode	stOpMode	Determines the operating modes. If the element xSle of the structure data type stOpMode is set to TRUE, the function block executes its tasks. With another setting of this element, the outputs of this function block are set to their defined fallback (default) states. Refer to the structure data type description.
iq_stMode_Aux	stMode	Structure for the mode states to control and switch the operating mode of the auxiliary pump. Refer to the structure data type description.
iq_stAux_PumpCtrlInit	stAuxPumpCtrlInit	Structure used for initialization data for the auxiliary pump. Refer to the structure data type description.
iq_udiAuxPumpOpHr	UDINT	Lists the operating hours of the auxiliary pump. This input/output variable can be reset or adjusted even from HMI or SCADA systems.

The table describes the input variables to the function block:

Input	Data Type	Description
i_xRele	i.param	Activates (TRUE) or stops (FALSE) the execution of the function block.
i_stSta_AuxPump_Ex	stSta	Structure that contains the status of the auxiliary pump. Refer to the structure data type description.
i_xManCmd	BOOL	When TRUE, commands the start of the auxiliary pump.
i_stAna_DiscPres	stAna	Structure that contains the discharge pressure and its status. Refer to the structure data type description.
i_stAna_Flow	stAna	Structure that contains the flow input value and its status. Refer to the structure data type description.
i_xRes	BOOL	Resets alarms detected in the auxiliary pump when the cause has been corrected.

The table describes the output variables from the function block:

Output	Data Type	Description
q_stAuxPumpCtrlSta_Hmi	stAuxPumpCtrlSta	Structure is used to display the status of the auxiliary pump on the HMI. Refer to the structure data type description.
q_stAuxPumpCom_Ex	stAuxPumpCom	Structure that is used to activate the auxiliary pump. Refer to the structure data type description.
q_stAuxPumpAlrm	stAuxPumpAlrm	Structure is used to indicate alarm states of the auxiliary pump. Refer to the structure data type description.

Output

Data Type

Description

q_stAuxPumpCtrlSta_Hmi

stAuxPumpCtrlSta

Structure is used to display the status of the auxiliary pump on the HMI.

Refer to the structure data type description.

q_stAuxPumpCom_Ex

stAuxPumpCom

Structure that is used to activate the auxiliary pump.

Refer to the structure data type description.

q_stAuxPumpAlrm

stAuxPumpAlrm

Structure is used to indicate alarm states of the auxiliary pump.

Refer to the structure data type description.