FB_TrendHmi

Support class for the TwinCAT HMI SQLiteTrend with pre-implemented views. The TF8550 function TcHmi.Functions.Plastic.UpdateTrend() is required for use. The selected view is additionally determined by the property SelectedView. The following objects with corresponding interface can be attached to the trend:

Type	Display value
I_ExtruderHmi	Actual turn rate of the extruder [RPM]
I_MonitoringHmi	Monitoring value [any]
I_TempChannel	Actual temperature of a temperature channel [°C]
I_Temperature	Actual temperature of each grouped temperature channel [°C]
I_TempCtrlHmi ¹	Temperature of each zone [°C]

¹Obsolete

Internal functions:

The first x views are pre-reserved for displaying the temperature groups

Default x := 5
Automatically adapting to the set number of groups
When the FB_Temperature group configuration is changed, the views are automatically adapted as well

All values attached via Append() are available for configuration by the ConfigXyz() methods

Syntax:

FUNCTION_BLOCK FB_TrendHmi EXTENDS FB_Base

Properties

Name	Type	Access	Initial value	Description
Name	STRING	Get, Set	<SourceName>	Specifies the name of the class instance.
FB_TrendHmi
SelectedView	INT	Get, Set	0	Selected view
UseLocalize	BOOL	Get, Set	FALSE	If TRUE, the TF8550 function Plastic.Localize() is used for all localizations.
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_TrendHmi
Append()	Appends a value to be recorded in the trend and selected in views.
AppendTempChannels()	Appends the temperature zones of an FB_Temperature instance
[`PROTECTED`] CheckSupport()	Checks the support of the appended object
ClearView()	Removes all configured values from a view.
ConfigDisplayName()	Overwrites the instance name of a display value.
ConfigDisplayLocalize()	Overwrites the instance name of a display value with a translatable localization key.
ConfigView()	Configures a value in a selectable view.
Idx(`x`)	Returns the object at the xth position.
AppendTempZones()¹	Appends the temperature zones of an FB_TempCtrl instance.
ConfigDisplayLocalisation()¹	Overwrites the instance name with a localization key.
ConfigDisplayLocalisationNuget()¹	Overwrites the instance name with a localization key from the TF8550.Localisation package.

	Exceptions avoidance The Idx() function returns the first element (root) of the list on invalid requested index.

¹ Obsolete

Interfaces

Type	Description
I_Base	Standard interface on FB_Base.
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)

Further Information