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Bit Pack

easy

Packs eight BOOL inputs into the low eight bits of one DINT word.

What it teaches

Build a packed word by clearing it, then writing each BOOL directly to its matching bit address: In_00 controls bit 0 through In_07 controlling bit 7. Clearing first guarantees bits 8-31 are 0 instead of retaining stale data.

Inputs and outputs

TagTypeDefaultDescription
In_00BOOL——
In_01BOOL——
In_02BOOL——
In_03BOOL——
In_04BOOL——
In_05BOOL——
In_06BOOL——
In_07BOOL——
Out_WordDINT—Packed input bits; bits 8-31 are 0

Required behavior

  • Each input maps to one bit of Out_Word: In_00 drives bit 0 through In_07 driving bit 7.
  • Out_Word is cleared and bits 0-7 are rebuilt from the inputs every scan.
  • Bits 8-31 of Out_Word are always 0.