Omron SYSMAC CX-Programmer 8.1, Руководство по эксплуатации

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Elements of SFC Section 2-3
54
P Pulse If the final scan function is enabled, the action is executed for
two cycles when the step becomes active.
If the final scan function is disabled, the action is executed for
only one cycle when the step becomes active.
P1 Rising
Pulse The action is executed once, each time the step becomes
active.
P0 Falling
Pulse The action is executed once, each time the step becomes
inactive.
R Reset When a step becomes active, and its action is being executed
by the "S", "SL", "SD", or "DS" AQ, the specified action is
stopped and reset. If the action is being executed, but not by
the "S", "SL", "SD", or "DS" AQ, then the action is only reset
(not stopped). The reset operation sets the following:
OUT/OUT NOT instruction: “OFF”; TIM/TIMH instruction:
“Reset”; Other Timer/Counter/Shift registers: “Hold”.
S Set The action is executed when the step becomes active, and
continues to be executed, even after the step becomes
inactive. To cancel the execution, use the “R” AQ.
SD Set
Delay The action is executed after the user-specified time has
passed, since step activation, and continues to be executed,
even after the step becomes inactive. To cancel the
execution, use the “R” AQ. Yes
SL Set
Limit The action is executed when the step becomes active, and
until the user-specified time expires. In contrast to “L”, the
action continues to be executed even after the step becomes
inactive. To cancel the execution, use the “R” AQ. Yes
The timer set value is a setting used by AQs, which require a time element.
Timer set value is required by the following AQs:
D, DS, L, SD, SL
D, DS, and L control the timing of action execution, using the step timer. The time unit
on the timer is the same as that on the step timer for the step to which the action block
is allocated.
SD and SL control the time using a different timer than the step timer, since they
operate independently of step status.