Panasonic FP E Series User Manual page 221

Precautions for link area allocation
Note:
A mistake in the link area allocation will cause an error, and communication will be disabled.
Avoid overlapping send areas
When sending data from the send area to receive area of another FPΣ, send and receive areas must
match. In the example shown below, there is an overlapping area between units no. 2 and 3, and this will
cause an error, so that communication cannot be carried out.
Link relay allocation
System registers
No.
No. 40 Range of link relays used for PC(PLC) link
No. 42 Start address of link relay send area
No. 43 Size of link relay send area
Invalid allocations
The allocations shown below are not possible, neither for link relays nor for link registers:
- Send area is split
- Send and receive areas are split into multiple segments
Name
Set value of various control units
No. 1 No. 2
64 64
0 20
20 20
No. 3
64
30
34
7-71