FB_MovabililtyCheckHmi

HMI class for setting the movability check of an FB_MeteringScrew. The movability check is used to ensure that the viscosity of the heated plastic is already low enough to allow the screw to rotate slowly with low torque.

WARNING

Configuration of an axis limitation required!

The limiting of the axis must be configured correctly for the movability check to function properly! Otherwise, the test will not be carried out with the limited torque of the screw and the system may be damaged!

Syntax:

FUNCTION_BLOCK FB_MovabilityCheckHmi EXTENDS FB_BaseHmi

Properties

Name	Type	Access	Initial value	Description
Name	STRING	Get, Set	<SourceName>	Specifies the name of the class instance.
FB_MovabililtyCheckHmi
Checked	BOOL	Get, Set	FALSE	TRUE as soon as a movability check has been successfully performed.
Duration	I_TimerHmi	Get	<Local> (10.0 [s])	Duration of the test run, after which movability is determined.
Failed	BOOL	Get, Set	FALSE	TRUE if the last test run failed.
Limiting	LREAL	Get, Set	20.0 [%]	Pressure/torque limit that must not be reached during the test.
Velocity	LREAL	Get, Set	10.0 [°/s]	Velocity at which the screw should be rotated during the test.
FB_Base
BaseState	E_BaseState	Get	eNotHandled	Initialization state of the class instance.
Error	BOOL	Get	FALSE	Class is in an error state.
ResultMessage	I_AppMessage	Get	-	Access to the class-internal EventLogger.
[`PROTECTED`] _Name	STRING	Get	<SourceName>	`.Name` without leading 'fb'.

Methods

Name	Description
Reset()	Resets the error state of the class.
FB_BaseHmi
Init(`ipBase`)	Default initialization method to pass the base class.
FB_Base
GetHMI()	Returns the assigned HMI object. Notice The method is not implemented in the `FB_Base` class. If the method is not overwritten by inheritance, a pseudo variable is always returned.
SetHMI(`ipBase`)	General assignment method for an `FB_BaseHmi` extending class as a local HMI. Notice The method is not implemented in the `FB_Base` class. If the method is not overridden by inheritance, it always fails.
[`PROTECTED`] _IsMyself(`iCmp`)	Identifies whether the transferred object corresponds to its own instance.
[`PROTECTED`] _QueryNamespace()	Extracts the first part of the instance path as an object namespace.
[`PROTECTED`] _QueryObjectName()	Extracts the last part of the instance path as the object name.

Interfaces

Type	Description
I_Base	Standard interface on FB_Base.
I_MovabililtyCheckHmi	Standard interfaces on FB_MovabilityCheckHmi
I_BaseHmi	Standard interface on FB_BaseHmi.
I_BaseDev	Covers all methods and properties of the base class.
I_Comparable	Enables comparisons via `_IsMyself()` or F_IsSameInstance().

Requirements

Development environment	Target platform	PLC libraries to include
TwinCAT 4026 >= v3.1.4026.19 TwinCAT 4024 >= v3.1.4024.71	PC or CX (x64, x86)	Tc3_PlasticBaseApplication (>= v12.14.0.0)