PCM03 in Stock

The ABB PCM03 is a non-volatile EPROM memory module designed for the H&B Contronic series of industrial automation controllers. Its primary function is to store fixed programs, bootloaders, and critical configuration parameters that must be retained even when system power is removed. Because EPROM is non-volatile, the data remains intact without a battery backup, making it suitable for long-term storage of unchanging control logic.