Panasonic FP7 CPU Unit, User Manual

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General-Purpose Communication
7.3.2 Contents of Received Data
When data are copied into a given data register , based on GPRECV command, the data are
saved in the following manner.

Saving method for received data
When data are saved in a given data register from the reception buffer, based on GPRECV
command, the data are saved in the following manner.
----- -----
The received data are saved in ascending order from
lower bytes.
DT200
H32(2) H31 (1)
H34 (5) H33 (3)
H0D (
C
R
) H35 (4)
----- -----
DT201
DT202
DT203
DT204
Saves the received No. of bytes. U6
-----
If the received No. of bytes is smaller than the area
specified by the GPRECV command, the data are not
overwritten.
KEY POINTS
•
When a start code and an end code are included in accordance with the
communication format of an external device, they are saved as a part of
received data in the operation memory. As necessary, insert a program for
extracting the relevant data.
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