Panasonic FP2SH manual Memory and I/O Control, Flexible Expandability,  Memory and I/O control

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 FP2/FP2SH is as large as 16k/60k steps, and when optional memory is added, 32k/120k steps. A variety of operation memory types are also available. The maximum number of controlled I/O points is 2,048 (2,048/8,192 for FP2/FP2SH when using remote I/O units), which is sufficient for medium-scale control.

Addition of optional memory

FP2:	Addition of optional memory to the CPU unit allows it
	to store up to 32k program steps, provides it with the
	clock/calendar function, and makes comment writing
	possible.
FP2SH:	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.

Optional memory

for FP2SH

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.

H type backplane

Up to three backplanes can be added to one master backplane. Now up to 32 units can be connected and up to 2,048 I/O points controlled.

CPU backplane Master backplane (8 slots)

Expansion	Expansion backplane	Expansion backplane (8 slots)
cable

(The backplane can be used as either a master or expansion backplane.)

	Conventional type	H type
Max. number of backplanes	1 + 1 = 2	1 for master + 3 for expansion = 4
Max. number of units	12 + 13 = 25	8 + 8 x 3 = 32
Max. number of I/O points	25 x 64 = 1,600	32 x 64 = 2,048
Max. cable length	1 cable, 2m	3 cables, 3.2m

The H type and conventional type cannot be used in combination.

08/2007