(19)
(11)EP 2 538 290 A3

(12)EUROPEAN PATENT APPLICATION

(88)Date of publication A3:
03.01.2018 Bulletin 2018/01

(43)Date of publication A2:
26.12.2012 Bulletin 2012/52

(21)Application number: 12173437.0

(22)Date of filing:  25.06.2012
(51)International Patent Classification (IPC): 
G05B 19/05(2006.01)
(84)Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME

(30)Priority: 24.06.2011 US 201113168236

(71)Applicant: Rockwell Automation Technologies, Inc.
Mayfield Heights, OH 44124 (US)

(72)Inventors:
  • Guenther, Robert
    35440 Linden (DE)
  • Zuponcic, Steven A.
    Solon, OH Ohio 44139 (US)
  • Hall, Kenwood H.
    Hudson, OH Ohio 44236 (US)

(74)Representative: Grünecker Patent- und Rechtsanwälte PartG mbB 
Leopoldstraße 4
80802 München
80802 München (DE)

  


(54)Capturing data during operation of an industrial controller for the debugging of control programs


(57) An industrial controller module (13a) is provided with a routine of program instructions (29a) for storing a log of I/O table state changes (31) in a defined portion of memory (23). Upon the occurrence of a trigger event, a file of the state changes (37) is saved in the memory (23). The trigger may be either one of a manual input, an error in the controller operation, or a breakpoint in the application program. Each entry (32) in the log of 1/0 table state changes (31) includes a timestamp (33) and values of each word of I/O state data (36) that changed at a time of the timestamp. Logs of state change data (16a), including timestamp data, can also be saved for intelligent sensors and actuators (16) and uploaded with the log of controller processor state data (31) to a computer (20) with a diagnostic program (21a) for playing back the state changes and synchronizing changes of the intelligent sensors and actuators (16) with changes of the controller processor module (13a).







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