Partial Use Of Link Areas - Panasonic FP0R User Manual

System register settings
No. Name
1)
50 Link relays - Send/receive area - Number of words shared by all linked PLCs
52 Link relays - Send area - Start sending from this word address
53 Link relays - Send area - Number of words to send
1)
The value of this system register must be identical for all stations.
Link register allocation
#1
LD128
167
168
255
Send area
System register settings
No. Name
1)
51 Link registers - Send/receive area - Number of words shared by all linked PLCs
54 Link registers - Send area - Start sending from this word address
55 Link registers - Send area - Number of words to send
1)
The value of this system register must be identical for all stations.
When link areas are allocated as shown above, the send area of station no. 1 can be
transmitted to the receive areas of stations no. 2, 3, and 4. Also, the receive area of station
no. 1 can receive data from the send areas of stations no. 2 and 3. Station no. 4 is allocated
as a receive area only and can receive data from stations no. 1, 2, and 3, but cannot send
data to other stations.

7.7.2.3 Partial Use of Link Areas

In the link areas available for 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.
#2
LD128
#1
167
168
#2
207
208
#3
255
Receive area # Station number of PLC
#3
LD128
#1
#2
207
208
#3
255
Communication
Station settings
#1 #2 #3 #4
64 64 64 64
64 84 104 64
20 20 24 0
#4
LD128
#1
#2
#3
255
Station settings
#1 #2 #3 #4
128 128 128 128
128 168 208 128
40 40 48 0
157