sebosebi

if you check with MELSOFT you can see that also in a PLC in STOP mode you have >0ms scan.... anyway i also think its a deep hardware fault.... tomorrow we will put off DC and start again ill let uou know if it will revive

kaare_t i did it but without results.... the strange is that i have always a 0ms scan and normally if i clear memory i have a 2ms scan and if i put my program i have 6ms....

A reason could be if i want that noone can stop with the switch.... Anyway my problem isnt that.... my problem is that i cant go in RUN anymore and that not depends from the position of the switch.... have someone any hints about something i can do before go in the nacelle and shut off the PLC?

i meant "... before i cant put in RUN anymore..."

Im sorry, but im SURE that i CAN put in RUN remotely if im in STOP by switch... anyway, before i have this problem i put in RUN almost 2 times before i cant put in STOP anymore so that isnt the reason why i have the problem

Working machine, it went ok... the problem appeared when we made an upload of a program that we had interrupted (not completed)..... after this it never goes to RUN mode, but we havent errors and then we put inside a correct software... it only not goes in RUN mode

Absolutely yes. Try it. If you go in RUN mode remotely with switch in STOP mode is a way to exclude switch, the only way to put again in STOP is remotely or by M8037.

I dont exactly know this, but i dont think its relevant, because on FX2N normally we can remotely RUN/STOP with switch in either position

Other information is that scan time of the program is always 0ms instead of 6ms it should be....

Hello, i have a FX2N 32MR on a wind turbine, and i have a unusual problem. I cant go in RUN mode in no ways, but the PLC have no errors, no blinking on the front panels, M8060-M8069 debugged all "0". I tried everything, forced M8035-M8036, toggled M8037. The only thing i cant do until now is to shut off the PLC because it is under a battery pack. Obviously i can communicate with it normally, via Bluetooth in HMI pass through. I can download and upload programs and debug. For example forcing M8037 ON dont put OFF M8035 M8036. Did someone ever meet such situation? Do you think that PLC is gone? Is there something i could try in low level registers, before go on the turbine and try other solutions (shut down or replacement)? Thanks