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  • MVP 2023

You have lost the program in your V700. Re-download the program from VisiLogic. You can avoid this issue by performing a "Download All & Burn".

Many different things can cause the PLC to lose the program, including battery fail, power spikes, electronic noise, and sometimes from the V200 Snap-In module being disturbed. If your battery is good and your PLC is not in an electrically noisy environment, try removing the V200 module and carefully and firmly re-seating it. Then place a bit of duct tape, or similar, around the edges to help keep it from moving with respect to the PLC.

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