NAiS FP2, Technical Manual

Page: 55 / 144

5-9
Partial use of link areas
In the link areas available for PC(PLC) link, link relays with a total of 1024 points (64 words) and link
registers with a total of 128 words can be used. This does not mean, however, that it is necessary to
reserve the entire area. Parts of the area which have not been reserved can be used as internal relays
and internal registers.
Link relay allocation
No. Name No.
No. 40 Range of link relays used for PLC link 50
No. 42 Start address of link relay send area 20
No. 43 Size of link relay send area 20
With the above settings, the 14 words (224 points)
consisting of WL50 to WL63 can be used as internal
relays.
Link register allocation
No. Name No.
No. 41 Range of link registers used for PLC link 100
No. 44 Start address of link register send area 40
No. 45 Size of link register send area 40
With the above settings, the 28 words consisting of
LD100 to LD127 can be used as internal registers.
Note:
The above example shows the case for PC(PLC) link 0.