Repair of Siemens PLCs after being soaked in water
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The Siemens S7-200 Smart and analog input modules were submerged in water, while there was no power supply; can they still be used normally after being dried? What should be noted when powering it on after it has dried? Can the programs inside disappear?
Some of the contacts and coils may have aged; they should still function properly, but the device’s lifespan will be significantly reduced, and the programs stored within it will not be lost