FB_ReadProcessValue

A function block of this type is used to supply a function block of type FB_ProcessHandlerBase with actual values.

Syntax:

FUNCTION_BLOCK FB_ReadProcessValue EXTENDS FB_MessageBase IMPLEMENTS I_ReadProcessValue
VAR_INPUT
END_VAR
VAR_OUTPUT
    fActualValue:        LREAL;
END_VAR

Outputs

Name	Type	Description
fActualValue	LREAL	The current actual value.

Properties

Name	Type	Access	Description
Offset	LREAL	Get, Set	The offset taken into account when calculating the actual value.
ProcessValue	LREAL	Get	The current process value calculated by the last call to Cyclic().
Weighting	LREAL	Get, Set	The scaling factor.

Methods

Name	Description
Cyclic	This method must be called by the application once per cycle. It checks the EtherCAT connection and updates the ProcessValue with a filtered actual value.
DoReset	A call of this method with bExecute=TRUE resets the connected sensor interface and clears all local errors.

Further Information

Cyclic
DoReset