Rockwell Automation 1794-Lxxxx PhaseManager - Manual (Page 67)

Publication LOGIX-UM001B-EN-P - April 2010 67
Equipment Phase Instructions (PSC, PCMD, POVR, PFL, PCLF, PXRQ, PRNP, PPD, PATT, PDET) Appendix A
Example 2:
Relay Ladder
Structured Text
If ProcedureB_StepIndex = 30 (The routine is at step 30.)
And this is the transition to step 30 (The ONS instruction signals that the EQU instruction went from false to true.)
Then
Change the Add_Ingredient equipment phase to running via the start command.
Verify that the command was successful and store the result code in PCMD_Result[1] (DINT tag).
When the SFC enters Add_Ingredient_Step:
• change Add_Ingredient equipment phase to running via the start
command.
• verify that the command was successful and store the result code in
PCMD_Result[2] (DINT tag).
The P1 qualifier limits this to the first scan of the step.