CPM1A Programmable Controllers Operation Manual 1784470
The PC continues to refresh I/O
bits even if the PC is in PROGRAM mode, so devices connected to output points
on the CPU Unit or Expansion I/O Units may operate unexpectedly.
1, 2, 3... 1. Monitor the status of the desired words according to the procedure
described 4-3-16 Three-word Monitor.
D0002D0001D0000
(Three-word monitor) 0123 4567 89AB
2. Press the CHG Key to begin 3-word data modification. The cursor will
appear next to the contents of the leftmost word.
D0002 3CH CHG?
CHG
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