Fuji Electric SPH Series - Page 126

2-52
Section 2 Programming Languages
(5) Action/action qualier
An action is a real program which is assigned to the initial, normal, and termination steps and which is executed on the object to
be controlled. In an action, the programmer can assign a BOOL variable, or a program in IL, ST, LD, or FBD language.
Action qualier
An action qualier species the timing of execution or suppression of an action according to the active or inactive state of the
step. There are nine types of action qualiers.
1) N (non-stored)
The action is repeated while the step is active. (Note)
S001
T001
A
CT1
2) P (Pulse)
The action is executed only once when the step is activated.
S001
T001
A
CT1
1 task
Notes:
IEC standard stipulates, “Action instruction statement or network must nally be executed at the trailing edge of action
qualier.” Therefore, the action of P qualier is executed twice when the step becomes active.
To make it executed only once, use “action ag” as an interlock.
Example of increment:
ADD
ENACT1.X
1
INC_DATA
ENO
INC_DATA
* For more information about action flag, refer to “2-6-3
Automatically generated SFC variables.”