Panasonic FP0R User Manual page 136

Receive buffer layout:
Offset
8
0
16#42(B) 16#41(A)
1
16#44(D) 16#43(C)
2
16#46(F) 16#45(E)
3
4
16#48(H) 16#47(G)
When reception begins, the value in offset 0 is 8. At the end of reception, the value in offset 0
is 0. The data in offset 1 to offset 4 is received in order from the low order byte.
System register settings:
In order to use the data in the receive buffer, define a global variable having the same starting
address and capacity. In this example, the starting address is 200 (VAR_GLOBAL
ReceivedData) and the receive buffer capacity is 5 (ARRAY [0..4] OF WORD).
GVL
Communication
135