S7-1200 communication problem

Discussion about communication protocols (configuration, functions, hardware required).
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Re: S7-1200 communication problem

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Dear Sir,
if your PLC have Fw > 4 check if protection is set to permit access:
S7-1200 V4.0 Put-get Setting.png
S7-1200 V4.0 Put-get Setting.png (156.31 KiB) Viewed 4714 times
Set gates samplig to "Always".

Best regards
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