Relays, Memory Areas and Constants
1-20
on
Memory
area
Special data
register
(DT) 512 words
(DT90000 to DT90511)
Data memory for storing specific data.
Various settings and error codes are
stored.
Index register (I)
14 words ×16 banks (I0 to ID)
Register can be used as an address of
memory area and constants modifier.
Control
instruc-
Master control relay
points (MCR)
256 points (when using the 90k step expansion memory, up to a total of 512
points can be used for the 1st and 2nd programs)
tion
point
Number of labels
(JP and LOOP)
256 points (when using the 90k step expansion memory, up to a total of 512
points can be used for the 1st and 2nd programs)
Number of step ladder
(* Note 3)
1,000 steps (can only be used for the 1st program)
Number of subroutine 100 subroutines (can only be used for the 1st program)
Number of interrupt
program
25 program (can only be used for the 1st program)
Constant Decimal
(K) K−32768 to K32767 (for 16-bit operation)
constants
K−2147483648 to K2147483647 (for 32-bit operation)
Hexadecimal
(H) H0 to HFFFF (for 16-bit operation)
constants
H0 to HFFFFFFFF (for 32-bit operation)
Floating point
type
(f)
f−1.175494×10
−38
to f−3.402823×10
38
f1.175494×10
−38
to f3.402823×10
38
Notes
1) There are two unit types, the hold type that saves the
conditions that exist just before turning the power off or
changing from the RUN mode to PROG. mode, and the
non-hold type that resets them. The selection of hold type and
non-hold type can be changed by the setting of system
register.
2) The points for the timer and counter can be changed by the
setting of system register 5. The numbers given in the table
are numbers when system register 5 is at its default setting.
3) Hold or non-hold type can be set.
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