Omron SYSMAC CV Series - SFC Control Instructions; Activate Step: Sa(210)

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5-37 SFC Control Instructions
SFC Control Instructions are used to control step status in the SFC program or to
output transition conditions from transition programs (TOUT(202) and
TCNT(123)). Refer to the CV-series PC Operation Manual: SFC for details on
SFC programming.
Note The CVM1 does not support SFC programming and must be programmed using
ladder diagrams only.
5-37-1 ACTIVATE STEP: SA(210)
(210)
SA N
1
N
2
N
2
: Subchart entry step ST or 9999
N
1
: Step number ST
Operand Data AreasLadder Symbol
Variations
j SA(210)
Description When the execution condition is OFF, SA(210) is not executed. When the execu-
tion condition is ON, SA(210) changes a designated step or subchart to execute
status and starts execution of actions. A step activated by SA(210) will be
executed as the last active step in the execution cycle for the first cycle after the
step goes active.
To designate a step in a subchart, specify the step number of the entry step call-
ing the subchart as the subchart entry step (N
2
) and then designate the step
number within the subchart.
To designate a subchart, designate the step number of the entry step calling the
subchart as the step number, N
1
and designate the subchart entry step as 9999.
To designate a step not in a subchart, designate the step number and designate
a subchart entry step of 9999.
Note SA(210) cannot be executed either from an interrupt program or for steps in in-
terrupt programs.
Normal Steps
The specific results of executing SA(210) for steps in each step status are de-
scribed below for normal steps inside or outside of subcharts.
Execute Status does not change, but status will not be transferred to the next step for one
execution cycle after execution of SA(210).
Pause Changes the step status from pause to execute. The output status that was in
effect at the time the status was changed from execute to pause will be contin-
ued, and execution will begin from the top of the step.
Halt Changes the step status from halt to execute. The output status that was in effect
at the time the status was changed from execute to pause will be continued, and
execution will begin from the top of the designated step.
Inactive Changes the step status from inactive to execute. Execution will begin from the
top action of the designated step. The step timer will begin.
SFC Control Instructions Section 5-37