Table of Contents
Advertisement
SFC Task Control Instruction Specifications
The following type of control can be achieved by using the SFC Task Control Instructions
Ending SFC task execution using the SFCOFF instruction
•
Pausing SFC task execution and resetting outputs using the SFCPR instruction
•
Pausing SFC task execution and holding outputs using the SFCPRN instruction
•
Restarting execution of SFC tasks that have been ended or paused using the SFCON
•
instruction
SFC OFF: SFCOFF
SFC PAUSE WITH
RESET: SFCPR
SFC PAUSE WITH NO
RESET: SFCPRN
SFC ON: SFCON
SFC task
Executed
SFCOFF
Ended
Outputs held
SFCON
Executed
Executed from initial step
Appendix B
Ends execution of an SFC task. The outputs from any actions that are being
executed in the task that is ended will be held and processing will be ended.
When execution is started again with the SFCON instruction, it will start from the
initial step.
All outputs in the task that is paused will be reset and processing will be paused.
Be careful when using this command if any outputs that will be reset are used in
other tasks.
When execution is started again with the SFCON instruction, it will start from the
step that was active before the task was paused.
The Step Time for the paused step will continue to operate even while the step is
paused.
Pauses execution of an SFC task. The outputs from any actions that are being
executed in the task that is paused will be held and processing will be paused.
When execution is started again with the SFCON instruction, it will start from the
step that was active before the task was paused.
The Step Time for the paused step will continue to operate even while the step is
paused.
Restarts execution of an SFC task that was ended or paused using one of the other
SFC Task Control Instructions.
SFC task
Executed
SFCPR
Pauses
Outputs reset
SFCON
Executed
Executed from status before pause
SFC task
Executed
SFCPRN
Pauses
Outputs held
SFCON
Executed
Executed from status before pause
123
Advertisement
Chapters
Table of Contents
