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pturmel

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pturmel last won the day on April 23

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About pturmel

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  1. pturmel
    Perhaps you want ToAryByte. Or that plus AryByteTo.
  2. pturmel
    You've been creating new posts for each change, due to tech difficulties on the site. I'm deleting the other copies.
  3. pturmel
    Only the very latest Rockwell PLCs support unsigned integer data types. Older ones simply substitute the signed type of that fundamental size.
  4. pturmel
    Correct. You will have to go to Rockwell's downloads and likely request access to that version.
  5. pturmel
    With Allen-Bradley processors, saving the program usually prompts you for uploading the data or not, as the data is stored with the program. So, before clearing the fault, go online with RSLogix500, save the program, say yes to the upload data prompt. Share that program file. If you cannot share that file for some reason, you may need to hire a local professional to help you.
  6. pturmel
    Yes, you should be worried. That screenshot includes the location that produced the error: program 33, rung 6. (See S:20 & S:21 in the picture.) There's an array subscript or a use of the # operator that has an arithmetic flaw. Enabling it to point past the end of the data file it is accessing. You will have to analyze the arithmetic involved. If you can't figure it out before it happens again, make sure you save the program & data before you clear the fault. Share that file with us so we can help decipher the math based on the actual values in your data tables.
  7. pturmel
    I've discovered that hovering over a spammer's name on a post gets me to a preview of their profile, where there's a menu I can use to flag them as a spammer. Without going to the actual profile (which doesn't work, as noted). The situation is not tenable for long.
  8. pturmel
    Yeah, somehow I missed the multiple PF525 situation. I thought you wanted to feed S1 and S2 on one PF525 from a single circuit. But this: Is a very simplistic risk assessment. It doesn't address the level of faults that must be accepted with still-working safety stop.
  9. pturmel
    IIRC, this will function, but reduces the safety classification in most cases. If the upstream relay is physically two separate relays in series internally, with appropriate failure interlocking, it may be acceptable. If the upstream safety relay provides paired solid-state outputs, parallel connection would almost certainly not be acceptable. Without a risk assessment, I wouldn't do it.
  10. pturmel
    1) Fairly common 2) Don't know. I don't know of any products that explicitly state support for it, even when they do. 3) All of Rockwell's ControlLogix and CompactLogix products support it. But not the ML8xx family. Omron's NJ/NX family of products support it. But not Keyence KV-8k family products. 4) Yes.
  11. pturmel
    Makes you wonder if the owner's are deliberately trying to kill off this forum. Or they are utterly incompetent.
  12. pturmel
    That is array subscript syntax. Meaning, Message_Enable is not a boolean, but a boolean array. The value of Message_Index controls which bit in the array is checked by that contact.
  13. pturmel
    Share the EDS file please.
  14. pturmel
    Five years later?
  15. pturmel
    You need to answer all the questions that were asked above for the OP. In particular, is this a new application that has never worked, or an old application that has stopped working. If the former, then, in my experience, crappy tuning is a likely contributor. You should use the PLC's native high speed trends to collect speed, torque, and position information just before the error occurs.
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