Yaskawa PC NC - Manual (Page 148)

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YASNAC PCNC Operating Manual Chapter 3: HMI Process Operation
FIGURE 3.7.18.3. The Force I/O Dialog
The top half of the Force I/O dialog displays information about the selected bit. In the bottom
half, the Force Status box is used to control which bits may be forced. Once a bit has been added
to the list of forceable bits (by clicking the Start radio button), the Force Data box becomes
enabled. This box is used to set the bit’s value to either On or Off. Selecting the Stop radio button
(and clicking OK) will remove the currently selected bit from the list of forceable bits and reset it
to its original value. The Stop All radio button removes all bits from the list of forceable bits and
sets them back to their original values. A black rectangle surrounds each of the forced bits.
Forcing multiple bits:
• Switch to the Utilities:Login screen and log in as Machinist (or higher). Make sure that
the Enable Parameter Changes box is checked.
• Go to All Diagnosis tab of the Maintenance:PLC Diagnosis screen.
• In the Search box, set the Type to “PLC Input from Machine #1000~”.
• Select bit 6 of address 1015 by touching it. A rectangular box should now surround the bit.
• Touch the Force... button to pop the Force I/O dialog.
• Select the Start radio button in the Force Status box. This will enable the Force Data
box, thus allowing the bit to be forced.
• Select the On radio button, then press OK. Bit 6 of address 1015 is now on.
• Select bit 7 of address 1022 by touching it. A rectangular box should now surround the
bit. A black rectangle surrounds bit 6 of address 1015 to indicate that it is still being forced.
• Touch the Force... button to pop the Force I/O dialog.
• Select the Start radio button in the Force Status box. This will enable the Force Data
box, thus allowing the bit to be forced.