Chapter 10 Define a sequential function chart routine
190 Rockwell Automation Publication 1756-RM084S-EN-P - March 2015
Each step can contain multiple actions.
L5X Action Structure
<Action [Action_Attributes]>
<Preset>
logic
</Preset>
<Body>
logic
</Body>
</Action>
L5K ACTION structure
ACTION (Action_Attributes)
<PRESET declaration>
<BODY declaration>
END_ACTION
Action attributes
L5X Item L5K Item Identifies
ID ID The action identifier. This ID uniquely identifies this action from
all other blocks. Enter an unsigned, 32-bit integer value.
Operand Operand The action tag. Enter a tag of datatype SFC_ACTION. The
import process uses this tag name to name the action.
Qualifier Qualifier The action qualifier.
Qualifier Description
N Non-Stored
R Reset
S Stored
L Time Limited
D Time Delayed
P Pulse
P1 Pulse (rising edge)
P0 Pulse (falling edge)
SL Stored and Time Limited
SD Stored and Time Delayed
DS Time Delayed and Stored
IsBoolean IsBoolean Whether or not the action is boolean. Enter Yes or No.
PresetUsesExpr PresetUsesExpression Whether the preset for the action timer is a structured text
expression. Enter Yes if you plan to enter an expression in a
PRESET block, otherwise, enter No.
IndicatorTag IndicatorTag The indicator tag. Enter tag.
Action list
