Panasonic FP Series

Appendix Programming Information
1265
Available address area Type Memory
size
F/P IEC
Function
Index registers 1 DI0 %MD6.0 Data memory used to modify
constants and memory area
addresses.
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)
There are two memory types, the hold type that saves the conditions that exist just before turning the power
off or changing from RUN to PROG mode, and the non−hold type that resets them. Standard type CPU: The
hold and non-hold type memory area is fixed and allotted the numbers as shown below. CPU types with
clock/calendar function: The hold and non−hold type memory areas can be changed by setting the system
registers.
3)
The number of points for timer and counter relays can be changed using system register 5. The numbers in
the table are the default settings.
Hold and non-hold type memory areas
Memory area Standard type CPU CPU types with clock/calendar function
Timer relays Non-hold type
Non-hold type From specified value to C139 Counter
relays
Hold type Non-hold type
4 points (elapsed values) (C140–C143)
1)
Non-hold type 976 points (R0–R60F)
61 words (WR0–WR60)
Internal
relays
Hold type 32 points (R610–R62F)
2 words (WR61–WR62)
Non-hold type 1652 words (DT0–DT1651) Data
registers
Hold type 8 words (DT1652–DT1659)
1)
A battery must be installed.
40.7.6 Relays and memory areas for FP2
Relays [bits]
Available address area Type Memory
size
F/P IEC
Function
External input relays 2048 X0–X127F %IX0.0–
%IX127.15
Turn on or off based on external
input.
External output relays 2048 Y0–Y127F %QX0.0–
%QX127.15
Turn on or off external outputs
based on the operation result.
Internal relays
1)
4048 R0–R252F %MX0.0–
%MX0.252.15
Used internally by the PLC
program to store bit information.
Link relays
1)
2048 L0–L127F %MX7.0.0–
%MX7.127.15
Shared by multiple PLCs
connected using PLC link.
Timer relays
1) 2)
1024 T0–T999/
C1000–C1023
%MX1.0–
%MX1.999/
%MX2.1000–
%MX2.1023
Turn on when the value set with
a TM instruction for the timer with
the same number has reached 0.
Counter relays
1) 2)
1024 C1000–C1023/
T0–T999
%MX2.1000–
%MX2.1023/
%MX1.0–
%MX1.999
Turn on when the value set with
a CT instruction for the counter
with the same number has
reached 0.