Define a sequential function chart routine Chapter 10
Rockwell Automation Publication 1756-RM084S-EN-P - March 2015 187
logic
</LimitLow>
<Action>
logic
</Action>
</Step>
L5K STEP structure
STEP (Step_Attributes)
<PRESET declaration>
<LIMIT_HIGH declaration>
<LIMIT_LOW declaration>
<ACTION_LIST declaration>
END_STEP
Step elements
L5X Item L5K Item Identifies
Preset PRESET A structured text expression that specifies the preset time in
milliseconds for the step timer. If the PresetUsesExpression
attribute (above) is Yes, type preset logic.
LimitHigh LIMIT_HIGH A structured text expression that specifies the preset time in
milliseconds for a limit high alarm. If the
LimitHighUsesExpression attribute (above) is Yes, type limit
high logic.
LimitLow LIMIT_LOW A structured text expression that specifies the preset time in
milliseconds for a limit low alarm. If the
LimitLowUsesExpression attribute (above) is Yes, type limit
low logic.
ActionList ACTION_LIST The actions in the step.
Step attributes
L5X Item L5K Item Identifies
ID ID The step identifier. This ID uniquely identifies this step from all
other blocks. Type an unsigned, 32-bit integer value.
X X X-coordinate on internal grid. Type an unsigned, 32-bit integer
value.
Y Y Y-coordinate on internal grid. Type an unsigned, 32-bit integer
value.
Operand Operand The step tag. Type a tag of datatype SFC_STEP. The import
process uses this tag name to name the step.
HideDesc HideDescription
Whether or not to hide the step description. Type Yes or No.
