Panasonic FP-E Programming Manual page 42

Relays, Memory Areas and Constants
Item
Memory Special data
area register
Index register
Master control relay
Control
points (MCR)
instruc- instruc
tion
Number of labels
point
(JP and LOOP)
Number of step ladder
(* Note 3)
Number of subroutine
Number of interrupt
program
Constant Decimal
constants constants
Hexadecimal
constants constants
Floating point
type
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 using the system registers.
1 - 18
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Numbering
(DT) 512 words (DT90000 to
DT90511)
(I) 14 words ×16 banks (I0 to ID)
256 points (For FP2−C3P: 1st program: 256 points/2nd program: 256 points)
256 points (For FP2−C3P: 1st program: 256 points/2nd program: 256 points)
1,000 steps (For FP2−C3P: 1st program only)
100 subroutines
1 program (periodical interrupt: allows setting of the time interval within the
range from 0.5ms to 1.5s) (For FP2−C3P: 1st program only)
(K) K−32768 to K32767 (for 16-bit operation) ( )
K−2147483648 to K2147483647 (for 32-bit operation)
(H) H0 to HFFFF (for 16-bit operation) ( )
H0 to HFFFFFFFF (for 32-bit operation)
−38
(f) f−1.175494×10
−38
f1.175494×10 to f3.402823×10
Function
Data memory for storing specific data.
Various settings and error codes are
stored.
Register can be used as an address of
memory area and constants modifier.
38
to f−3.402823×10
38