Panasonic FP2 Series Product Manual page 3

Memory and I/O Control
Flexible Expandability
 Memory and I/O control
Equipped with an adequate program memory and operating memory capacity
The body is compact; however, the standard program memory capacity of FP/FPSH is as large as 16k/60k steps, and when
optional memory is added, 3k/10k steps. A variety of operation memory types are also available. The maximum number of
controlled I/O points is ,048 (,048/8,19 for FP/FPSH when using remote I/O units), which is sufficient for medium-scale
control.
Addition of optional memory
FP: Addition of optional memory to the CPU unit allows it
to store up to 3k program steps, provides it with the
clock/calendar function, and makes comment writing
possible.
FPSH: An optional IC card can be used as program memory
or expanded data memory.
I/O point expansion by adding backplanes
See page 14 for details.

Conventional backplane
Only one backplane can be added to one master backplane.
When both the master and expansion backplanes are of the 14-
module type, up to 1,600 I/O points can be controlled.
CPU backplane
Expansion Expansion backplane
cable
(The backplane can be used as either a master
or expansion backplane.)
Conventional type H type
Max. number of backplanes 1 + 1 = 
Max. number of units 1 + 13 = 5
Max. number of I/O points 5 x 64 = 1,600
Max. cable length 1 cable, m
The H type and conventional type cannot be used in combination.

H type backplane
Up to three backplanes can be added to one master backplane.
Now up to 3 units can be connected and up to ,048 I/O points
controlled.
1 for master + 3 for expansion = 4
8 + 8 x 3 = 3
3 x 64 = ,048
3 cables, 3.m
09/2007
Master backplane (8 slots)
Expansion backplane (8 slots)
Optional memory
for FPSH
3