Stop

In a sequential function chart (SFC), a stop pauses the execution of the SFC. To resume the execution of the SFC, use the SFR and SFP instructions.

Available Languages

Ladder Diagram

Not Available

Function Block

Not Available

Sequential Function Chart

Structured Text

Not Available

Operands

Sequential Function Chart

Operand	Type	Format	Description
Stop	SFC_STOP	tag	pauses the execution of the SFC.

Description

Each stop uses a backing tag that provides information about the stop. The following information is available via the Tags window.

If you want to	Then check or set this member	Data Type	Details
determine when the controller has reached the stop	X	BOOL
determine to which step an SFC Reset (SFR) instruction has set the SFC	Reset	BOOL	The Reset bit marks the step that will execute when an SFC Pause (SFP) instruction resumes the execution of the SFC. When an SFC Reset (SFR) instruction executes, it pauses the SFC chart and sets the Reset bit of a step in the SFC. To resume the execution of the SFC, execute an SFC Pause (SFP) instruction. This instruction starts the SFC at the step with the Reset bit on and then clears the Reset bit.
determine how many times a stop has become active	Count	DINT	This is not a count of scans of the stop. The count increments each time the stop becomes active. It increments again only after the stop goes inactive and then active again.
use one tag for the various status bits of this action	Status	DINT	For this member	Use this bit
			Reset	22
			X	31

Provide Feedback

Have questions or feedback about this documentation? Please submit your feedback here.