Relays, Memory Areas and Constants
1-14
FunctionNumber of points and range of
memory area available for use
Item Function
C30, C60C14
Item
Control
instruc-
K−32, 768 to K32, 767 (for 16−bit operation)
constants (K)
K−2, 147, 483, 648 to K2, 147, 483, 647 (for 32−bit operation)
Hexadecimal
type (F)
F1.175494×10
−38
to F3.402823×10
38
Notes
1) The number of points noted above is the number reserved as
the calculation memory. The actual number of points available
for use is determined by the hardware configuration.
2) If no battery is used, only the fixed area is backed up.
(counters 16 points: C1008 to C1023, internal relays 128
points: R2470 to R255F, data registers 55 words, C14: DT12230
to DT12284, C30/C60: DT32710 to DT32764). Writing is
available up to 10000 times. Then the optional battery is used,
all area can be backed up.
Areas to be held and not held can be specified using the
system registers. If an area is held when the battery is not
installed, the value of data may be indefinite as it is not
cleared to 0 when the power is turned on. When the battery
ran out of the power, the data at the hold area will be
indefinite.
3) The points for the timer and counter can be changed by the
setting of system register 5. The number given in the table are
the numbers when system register 5 is at its default setting.
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