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How long will Haiwell PLC clock keep when the plc is power-off ?

2016-08-17 14:05:16 haiwell 361

Haiwell PLC program and the data of power-off preserve area will be saved forever. H/N host PLCs are with rechargeable battery, which will preserve the data for 40 days after power-off. After 40 days, the PLC clock time will be a random value when the PLC is power-on again.

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