Rockwell Automation 1794-Lxxxx PhaseManager - Manual (Page 80)

80 Publication LOGIX-UM001B-EN-P - April 2010
Appendix A Equipment Phase Instructions (PSC, PCMD, POVR, PFL, PCLF, PXRQ, PRNP, PPD, PATT, PDET)
Timing Diagram of a PXRQ Instruction
Description: The PXRQ instruction sends a request to FactoryTalk Batch software.
Description Description
The rung-condition-in goes true.
The instruction sends the request to FactoryTalk Batch
software. The rung-condition-in goes true.
The instruction sends the request to FactoryTalk Batch
software.
FactoryTalk Batch software starts processing the request. FactoryTalk Batch software starts processing the request.
Either of the following occur:
• FactoryTalk Batch software completes its processing of
the request. (PC = 1).
• An error occurs. (ER = 1).
The rung-condition-in goes false.
• EN remains = 1.
• FactoryTalk Batch software continues processing the
request. (IP = 1).
The rung-condition-in goes false. Either of the following occur:
• FactoryTalk Batch software completes its processing of
the request. (PC = 1).
• An error occurs. (ER = 1).
Because the rung-condition-in is false, EN = 0.
2 1 3 4
EN
WA
rung-condition-in
IP
PC or ER
6 5 7 8
1 5
2 6
3 7
4 8