Allen-Bradley uses a hexadecimal number that represents the bit pattern that is desired by the mask for screening information, or data, from the sequencer file.

Question

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Allen-Bradley programmable logic controllers (PLCs) use a hexadecimal number in mask instructions (such as MVM or Masked Move) to specify which bits in a word should be affected or screened during operations on data in a sequencer file or other data manipulation tasks. This allows for selective editing or viewing of specific bits within a word by applying the mask.

Allen-Bradley Uses a Hexadecimal Number That Represents the Bit Pattern