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.
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Sequential Function Chart |
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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.
| |
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 |
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