CANOpen SIL2 error: UNSAFESTACK_NOT_OPERATIONAL

lbouchard
2025-05-23
2025-05-26
  • lbouchard - 2025-05-23

    Hello,

    Working in 3.5 SP11 32 bit and using the 3S CANopenSafety Slave 3.5.11.0 library on an IFM CR711S. The 3SCSSD.CANOpenDevicesSIL2 function block keeps throwing "UNSAFESTACK_NOT_OPERATIONAL"

    Additionally, the Status of the device gives "There was an error accessing an I/O parameter".

    Any ideas on where my issues may lay? I have not found any good documentation that would explain the issue.

     
  • lbouchard - 2025-05-26

    Update: I still have no idea what was causing my issues, but it went away as soon as I identified that another device on the CAN was generating a Sync message at 16#7F. Changing this to be on 16#80 made the problem go away. I have no idea why this solves the problem and would love to hear from anyone who knows why these two things might be related.

     

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