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  1. PROFINET IO-Controller
  2. PSPNM-713

DPM Input Area overwritten by Output DMA if Provider IOPS enabled

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: V2.6.7.2
    • Fix Version/s: V2.7.0.13, V2.7.1.0
    • Component/s: None
    • Labels:
      None
    • Account:
      SPC Profinet Master (SPCPROFINETMA)

      Description

      When DMA Operation is enabled and the Profinet Controller Firmware is configured to use Provider IOPS, an invalid length for the DMA Transfer is calculated. As a result, the DPM Input Area might be overwritten with values from Host memory by the Output DMA Transfer. As a result invalid input process data might be passed to the host application.

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                  • Reporter:
                    AMesser Andreas Messer
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                    • Created:
                      Updated:
                      Resolved: