HYW6688

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Posts posted by HYW6688

  1. Posted · Edited by HYW6688

    17 hours ago, Theo V said:

    Hi HYW6688,

    It seems that the timebase of your used timers is different. 10ms timer is 100ms timer or something. You should check if there is a difference in the range of the timers in the new PLC compared to the old FX1 model in the manual. I've attached a list of the timebase inside the FX1 type. I hope you have a manual of the new model to compare.

    Best regards,

    Theo V.

    Timer overview FX PLC.pdf

    Thank you for the kindly help Theo V : )

    I'll looking into the timer parts of the new PLCs we bought.

    By the way, we're also considering upgrading to a Mitsubishi FX3G-24MR

    Can the program of FX1N just download to a FX3G directly?

    I'm grateful for your experience sharing mate : )

  2. Posted

    17 minutes ago, Ron_S said:

    What is different?

    Hi Ron_S, thank you for the quick reply : )

    Our machine has a motor that lift up a metal cover and another motor controls a spinning wheel.

    The normal operation is to stop the spinning wheel first and then lift up the metal cover for about 3 seconds.

    But with those two new PLCs, the spinning wheel stopped earlier and the metal cover is barely lifted up for less than a second.

  3. Posted

    Hi guys,

    I've encountered a weird problem backing up my old FX1N-24MR-ES/UL PLCs. Hope I can get some helps here. I'm grateful for all the help.

    I got some old FX1N-24MR-ES/UL PLCs working on machines, and most of them are working 24/7 for more than 8 years now.

    There's a computer in machines communicating with PLC via SC-09 harness( RS232 - RS422 ).

    Since Mitsubishi isn't selling and manufacturing FX1N-24MR-ES/UL anymore, I tried to find some compatible alternatives.

    I bought a Shihlin Electric AX1N-24MR-ES(It got licensed from Mitsubishi to approve it's 100% compatible with FX1N-24MR-ES/UL) and a copied FX1N-24MR-ES/UL from China.

    I downloaded and verified programs/parameters into both PLCs via GX Works2(both PLCs shown as Mitsubishi FX1N-24MR in GX Works2), but they both work about 5~10% differently from the original ones on the machines. But it seems the both new PLCs are working identically.

    I've tried download the original program/parameters to a old original FX1N-24MR-ES/UL and it works well, so it seems the program/parameters I read out is correct.

    I've also checked the both VRs(D8030, D8031) aren't used in the program.

    May you please let me know what else I can do or test to make the new PLCs I working 100% identically as the old ones?

    I'm grateful for all your kindly help guys.

    Thank you and have a nice day:-)