Yaskawa PC NC - Manual (Page 147)

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YASNAC PCNC Operating Manual Chapter 3: HMI Process Operation
FIGURE 3.7.18.2. The Display Selected Tab of the PLC Diagnosis Screen
The Details box provides additional information
about individual register bits. When a bit is
selected, associated data such as address range and
description appear automatically in the Details box.
Selected bits that are not in keep memory (bits with addresses less than 7100) can be
turned on and off by pressing the Force... button, which pops the Force I/O dialog, shown
in Figure 3.7.18.3 on page 91. This button is disabled for Operator level.