Ewon Technical Forum

Hello Team,

We have installed Ewon Flexy 102 at one of our customer's site.
Communication with Mitsubishi PLC (FX3U) has been established over MELSEC protocol.
Randomly after few hours/days, Ewon stops communicating with PLC and show "stdios-Device ENTERS slow poll mode (MELSEC - Address )" error in event logs.
Once Ewon is rebooted, it starts communicating with PLC again.
This scenario repeats multiple times throughout.

Can anyone please tell me what could be the possible reason causing this issue?

Regards,
Kshitij

I never worked with Mitsubishi PLC but, as a temporary work-around, you can set up status tag (page 15 here: https://hmsnetworks.blob.core.windows.ne...0bd4ad7_17) and reboot ewon with ONCHANGE function.

(01-02-2023, 12:44 PM)ziozetti Wrote: [ -> ]I never worked with Mitsubishi PLC but, as a temporary work-around, you can set up status tag (page 15 here: https://hmsnetworks.blob.core.windows.ne...0bd4ad7_17) and reboot ewon with ONCHANGE function.

Code:

ONCHANGE "STATUS_TAG", "REBOOT"

Thanks for the reply!
Yes we have status tag in our configuration but we don't want to reboot Ewon that often, because once it was observed that even after reboot status tag was "2".
Need to figure out why ewon is not communicating with PLC.