Rockwell Automation 1794-Lxxxx PhaseManager - Manual (Page 101)

Publication LOGIX-UM001B-EN-P - April 2010 101
Equipment Phase Instructions (PSC, PCMD, POVR, PFL, PCLF, PXRQ, PRNP, PPD, PATT, PDET) Appendix A
Structured Text
At the first step in the sequence, this action tries to take ownership
of 2 equipment phases that the sequence uses.
This action checks that the program owns the equipment phases. If
the Result of each PATT instruction = 0 or 24582 (the program owns
the equipment phase), then
A bit within the Ownership tag = 1. (In the Ownership tag, each
equipment phase is assigned a bit.)
If Ownership = 3 (The program owns both equipment phases as shown by bits 0 and 1.), then the
SFC goes to the next step.