Function Block Description

Function Block Description - PipeFill

Pin Diagram

Brief Description

The PipeFill function block verifies the discharge pressure in the discharge pipe to help to reach the working pressure range of the pressure quickly after start or restart of the pumping application. During normal operation, it generates an alarm if it detects that the pressure level is higher or lower than the working range for a certain time.

I/O Variables 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 xAuto of the structure data type stOpMode is set to TRUE, the function block executes its tasks automatically. With another status 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_stFillInit	stFillInit	Structure used for initialization data. Refer to the structure data type description.

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 xAuto of the structure data type stOpMode is set to TRUE, the function block executes its tasks automatically. With another status 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_stFillInit

stFillInit

Structure used for initialization data.

Refer to the structure data type description.

The table describes the input variables to the function block:

Input	Data Type	Description
i_xExe	BOOL	Input from the operator to start the pipe fill mode manually. When TRUE, the pipe fill mode is started.
i_stAna_DiscPres	stAna	Structure used for the analog input value containing the discharge pressure and the state of this value. Refer to the structure data type description.
i_rSp	REAL	Contains the user-defined pressure setpoint which can be adapted by other functions, like compensation functions using the flow value from flow meter, if available or the cavitation protection function.
i_rSpAct	REAL	Contains the adapted pressure setpoint that is influenced by other functions, like compensation functions (using the flow value from the flow meter, if available) or the cavitation protection function. The value is constantly adjusted to the situation of the pumping application.

The table describes the output variables from the function block:

Output	Data Type	Description
q_stFillSta_Hmi	stFillStat	Structure that is used to display the status of the pipe fill function on the HMI. Refer to the structure data type description.
q_stRef_FillRef	stRef	Structure that contains the adjusted pressure value. This is the user-defined pressure setpoint that has been corrected by the pipe fill function. Refer to the structure data type description.
q_stFillAlrm	stFillAlrm	Structure that indicates the alarm states detected in pipe fill mode. Refer to the structure data type description.

Output

Data Type

Description

q_stFillSta_Hmi

stFillStat

Structure that is used to display the status of the pipe fill function on the HMI.

Refer to the structure data type description.

q_stRef_FillRef

stRef

Structure that contains the adjusted pressure value. This is the user-defined pressure setpoint that has been corrected by the pipe fill function.

Refer to the structure data type description.

q_stFillAlrm

stFillAlrm

Structure that indicates the alarm states detected in pipe fill mode.

Refer to the structure data type description.