SF_TwoHandControlTypeII (FB)

FUNCTION_BLOCK SF_TwoHandControlTypeII

This function block provides the two-hand control functionality (see EN 574, Section 4 Type II).

InOut:

Scope	Name	Type	Initial	Comment
Input	Activate	BOOL	FALSE	Activation of the FB.
	S_Button1	BOOL	FALSE	Input of button 1, FALSE: Button 1 released, TRUE: Button 1 actuated.
	S_Button2	BOOL	FALSE	Input of button 2, FALSE: Button 2 released, TRUE: Button 2 actuated.
Output	Ready	BOOL	FALSE	Activation of the FB. TRUE indicates that the FB is activated and the outputs results are valid, FALSE the FB is not active and the program is not executed.
	S_TwoHandOut	BOOL	FALSE	Safety related output signal. FALSE: No correct two hand operation. TRUE: S_Button1 and S_Button2 inputs are TRUE and no error occurred. Correct two hand operation.
	SafetyDemand	BOOL	FALSE	Output indicating that the FB is active and the primary safety function is demanded (e.g. related to the safety functionality).
	Error	BOOL	FALSE	Error flag
	DiagCode	WORD	0	Diagnostic register