CIO Part 2 (User)

  • General question really regarding CIO part 2 (User).

    Understandably, I can save the CIOPRG and reload it in, so testing is unlikely to permanently brick the controller.

    Somethings I am about to play about with in anger and just thought I'd ask the forum first.


    1. Is it safe to wipe the OEM supplied ladders in part 2 (User) without removing critical operational ladders?

    - I just assume ALL IO exchange between user interfaces/fieldbus interfaces will stop working - no mapped Specific IO for automatic operations etc and GPIO exchanges etc.

    - Will anything else likely to stop functioning with an empty part 2 (User).


    2. Do people usually wipe part 2 and create their own specifically to the application or modify the OEM supplied to suit (I appreciate the path of least resistance is favourable)?


    3. If you do modify the OEM supplied, do you usually just add the mods to the end, or do you sometimes have to delve into the rabbit hole and add the mods in the already existing ladders.


    4. If you do plan to wipe it clean and create your own, are there any do's, don'ts or pitfalls to look out for or be aware of?


    As always any advice/opinions/pointers are appreciated.... :top:

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  • 1. Your assumptions are correct regarding I/O. Depending on the application (arc, motor gun, etc.) it wont do that again until a factory ladder is reloaded.


    2. Never known anyone to wipe part 2. Modify as necessary.


    3. I put things at the end on numerical order. My OCD won’t allow anything otherwise. There are times where I parallel around existing factory rungs. I leave the factory ladder as much as possible since I don’t know what the end user is going to do in the future.


    4. No real pitfalls as long as you know what addresses you can output to. Also, program a get out of jail free condition. Scenario comes up, how to get out of it. Maybe I want this only active in teach but not play. Or an output to bypass a condition.

    I know a thing or two, because I’ve seen a thing or two. Don't even ask about a third thing. I won't know it.

  • I put things at the end on numerical order. My OCD won’t allow anything otherwise.

    get out of jail free condition. Scenario comes up, how to get out of it. Maybe I want this only active in teach but not play. Or an output to bypass a condition.

    We have the same OCD, as this is what my 'inner voices' force me to do too.

    Looks like I have an open book to explore without opening too many rabbit holes.

    Many thanks for the clarification on my points.


    Thank you 95devils, much appreciated....... :top:

  • My two cents:


    2) In the past, a dx200 arrived with a system ladder with a simple string and a user ladder full of everything (of course the result of a copy and paste from the sytem part).


    Imagine a youth and fresh programmer that decides to wipe out all the user part without do a copy of the CIO and then waiting for a week a good CIO to reload :pfeif:

  • Imagine a youth and fresh programmer that decides to wipe out all the user part without do a copy of the CIO and then waiting for a week a good CIO to reload :pfeif:

    We have all been there.

    Just dive in and make changes without backup first....... :bur2: + :censored: = :gaah:

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