OpModeSelect

OpModeSelect (FB)

FUNCTION_BLOCK OpModeSelect EXTENDS MANASBase IMPLEMENTS IMan

Short description

Plant switch for switching between up to 6 operating modes (Automatic and 5 manual operating modes)

Representation

Interfaces

Inputs

Name	Data type	Value range	Initial value	Function
xIn	BOOL		FALSE	State variable for xActive in automatic operation

Outputs

Name	Data type	Value range	Initial value	Function
xActive	BOOL		FALSE	Output variable in automatic operation
xAutoM0	BOOL		FALSE	Indicator for operating mode Automatic
xManOffM1	BOOL		FALSE	Indicator for operating mode Manual-Off
xManM2	BOOL		FALSE	Indicator for operating mode Manual 1
xManM3	BOOL		FALSE	Indicator for operating mode Manual 2
xManM4	BOOL		FALSE	Indicator for operating mode Manual 3
xManM5	BOOL		FALSE	Indicator for operating mode Manual 4
sActMode	STRING			Name of the current operating mode (e.g. 'Automatic')

Setpoints / parameters

Name	Data type	Value range	Initial value	Function
tToggleTime	TIME		2s	Time delay until the operating mode change
eMaxMode	eOpMode		eOpMode.Mode5	Definition of the maximum number of manual operating modes
xOpModeToggle	BOOL		FALSE	Toggle of operating modes
xResAuto	BOOL		FALSE	Reset to automatic operation
xEn	BOOL		TRUE	Enable
sTitle	STRING		'Operating mode '	Name of the plant switch
sTitle2	STRING		'Description '	Description of the plant switch
eMode	eOpMode		eOpMode.Mode0	Current operating state of the plant switch
sTitleM0	STRING		'Automatic'	Description of the operating mode Automatic
sTitleM1	STRING		'Manual Off'	Description of the operating mode Manual-Off
sTitleM2	STRING		'Manual 1'	Description of the operating mode Manual 1
sTitleM3	STRING		'Manual 2'	Description of the operating mode Manual 2
sTitleM4	STRING		'Manual 3'	Description of the operating mode Manual 3
sTitleM5	STRING		'Manual 4'	Description of the operating mode Manual 4

Function description

General

The plant switch is used to switch between eMaxMode +1 different operating modes (Automatic, Manual-Off and eMaxMode -1 manual operating modes). The switching process is triggered by a rising edge on the setpoint/parameter xOpModeToggle triggered. The switching is cyclic, i.e. after the last manual operating mode the next switch selects the Automatic mode. The operating mode can also be explicitly selected by choosing the setpoint/parameter eMode in the range eOpMode.Mode0 - eMaxMode be selected. The current operating mode is represented numerically by the setpoint/parameter eMode in the range eOpMode.Mode0 - eMaxMode represented. It is additionally indicated by the corresponding digital outputs xAutoM0, xManOffM1, xManM2, xManM3, etc. displayed.\

State variable xIn

In	xActive	Note
FALSE	FALSE	Valid only in automatic operation ( eMode = eOpMode.Mode0 )
TRUE	TRUE	Valid only in automatic operation ( eMode = eOpMode.Mode0 )

Output variable xActive

In automatic operation ( eMode = eOpMode.Mode0 ) the output variable xActive follows the input variable xIn. In all other operating modes the state FALSE is always active.\

Reset to automatic operation

Every rising edge on the setpoint/parameter xResAuto activates automatic operation if the setpoint/parameter xEn is in the TRUE state. \

Enable/disable of switching

The operating mode can only be switched if the setpoint/parameter xEn is in the TRUE state. \

Switching delay tToggleTime

The time between activation of the operating mode switch and the actual switching can be set via the setpoint/parameter tToggleTime be set. The timer only starts if the operating mode change was initiated via the setpoint/parameter xOpModeToggle was performed. \

Operating modes

eMode	Name of the operating mode	xIn	xActive	xAutoM0	xManOffM1	xManM2	xManM3	xManM4	xManM5	Note
eOpMode.Mode0	sTitleM0	FALSE	FALSE	TRUE	FALSE	FALSE	FALSE	FALSE	FALSE	Operating mode Automatic
eOpMode.Mode0	sTitleM0	TRUE	TRUE	TRUE	FALSE	FALSE	FALSE	FALSE	FALSE	Operating mode Automatic
eOpMode.Mode1	sTitleM1	X	FALSE	FALSE	TRUE	FALSE	FALSE	FALSE	FALSE	Operating mode Manual-Off
eOpMode.Mode2	sTitleM2	X	FALSE	FALSE	FALSE	TRUE	FALSE	FALSE	FALSE	Operating mode Manual 1
eOpMode.Mode3	sTitleM3	X	FALSE	FALSE	FALSE	FALSE	TRUE	FALSE	FALSE	Operating mode Manual 2
eOpMode.Mode4	sTitleM4	X	FALSE	FALSE	FALSE	FALSE	FALSE	TRUE	FALSE	Operating mode Manual 3
eOpMode.Mode5	sTitleM5	X	FALSE	FALSE	FALSE	FALSE	FALSE	FALSE	TRUE	Operating mode Manual 4

Legend: X = Unknown\

Visualization

Matching visualization element from the HVACV Visu Library: OpModeSelect OpModeSelect_Button

Representation

Interface Visu-Element OpModeSelect_Button

Name	Data type	Type	Initial value	Function
FB_OpModeSelect_0	HVAC.OpModeSelect	VAR_IN_OUT		Enter FB instance OpModeSelect here e.g. PRG.OpModeSelect

It is sufficient to place the visualization element OpModeSelect_Button. A click on it opens the OpModeSelect dialog in the visualization. The number of operating modes is defined in the FB HVAC.OpModeSelect (eMaxMode) as well as the titles (sTitleM0 to M5) and the dialog title (sTitle and sTitle2). The visualization element automatically adapts to the size of the maximum operating modes. | | Note: VAR_IN_OUT interfaces must be assigned, VAR_INPUT are optional. | |

CODESYS

InOut:

Scope	Name	Type	Initial
Input	xIn	BOOL	0
Input Const	tToggleTime	TIME	TIME#2s0ms
Input Const	eMaxMode	eOpMode	eOpMode.Mode5
Input Const	xOpModeToggle	BOOL	FALSE
Input Const	xResAuto	BOOL	FALSE
Input Const	xEn	BOOL	TRUE
Input Const	sTitle	STRING	'Operating mode'
Input Const	sTitle2	STRING	'Description'
Input Const	eMode	eOpMode	eOpMode.Mode0
Input Const	sTitleM0	STRING	'Automatic'
Input Const	sTitleM1	STRING	'Manual Off'
Input Const	sTitleM2	STRING	'Manual 1'
Input Const	sTitleM3	STRING	'Manual 2'
Input Const	sTitleM4	STRING	'Manual 3'
Input Const	sTitleM5	STRING	'Manual 4'
Output	xActive	BOOL
Output	xAutoM0	BOOL
Output	xManOffM1	BOOL
Output	xManM2	BOOL
Output	xManM3	BOOL
Output	xManM4	BOOL
Output	xManM5	BOOL
Output	sActMode	STRING