5: S
PECIAL
F
UNCTIONS
5-6
FC5A M
ICRO
S
MART
U
SER
’
S
M
ANUAL
FC9Y-B1268
Internal Relay ‘Keep’ Designation
Clear All:
All internal relay statuses are cleared at startup (default).
Keep All:
All internal relay statuses are maintained at startup.
Keep Specified Range:
A specified range of internal relays are maintained at startup. Enter the start “keep” number in the left
field and the end “keep” number in the right field. The start “keep” number must be smaller than or
equal to the end “keep” number.
Valid internal relay numbers are M0 through M2557. Special internal relays cannot be designated.
Start Keep Number
End Keep Number (
Start Keep Number)
When a range of M50 through M100 is designated as shown in the example above, M50 through M100
are keep types, M0 through M47 and M101 through M2557 are clear types.
Shift Register ‘Keep’ Designation
Clear All:
All shift register bit statuses are cleared at startup (default).
Keep All:
All shift register bit statuses are maintained at startup.
Keep Specified Range:
A specified range of shift register bits are maintained at startup. Enter the start “keep” number in the
left field and the end “keep” number in the right field. The start “keep” number must be smaller than
or equal to the end “keep” number.
Valid shift register bit numbers are R0 through R255.
When a range of R17 through R32 is designated, R17 through R32 are keep types, R0 through R16 and
R33 through R255 are clear types.
Counter ‘Clear’ Designation
Keep All:
All counter current values are maintained at startup (default).
Clear All:
All counter current values are cleared at startup.
Clear Specified Range:
A specified range of counter current values are cleared at startup. Enter the start “clear” number in the
left field and the end “clear” number in the right field. The start “clear” number must be smaller than
or equal to the end “clear” number.
Valid counter numbers are C0 through C255.
When a range of C0 through C10 is designated, C0 through C10 are clear types, and C11 through C255
are keep types.
Data Register ‘Clear’ Designation
Keep All:
All data register values are maintained at startup (default).
Clear All:
All data register values are cleared at startup.
Clear Specified Range:
A specified range of data register values are cleared at startup. Enter the start “clear” number in the left
field and the end “clear” number in the right field. The start “clear” number must be smaller than or
equal to the end “clear” number.
Valid data register numbers are D0 through D1999. Special data registers and expansion data registers
cannot be designated. All expansion data registers are keep types.
On slim type CPU modules, extra data registers D10000 through D49999 can be enabled in the Function
Area Settings. All extra data registers are keep types.
When a range of D100 through D1999 is designated, D0 through D99 are keep types, and D100 through
D1999 are clear types.
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