SiemensDigital Input module SM321
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What happens to module values in the event of a power failure?
What happens to module values in the event of a power failure?
SiemensDigital Input module SM321
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In some analog modules, this one can also be used to replace values when the CPU goes into STOP mode. When the power to the CPU runs out, power to all the modules in the system (unless the module has a special power supply) disappears. "0" is aired on all channels.
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