Mitsubishi MELSEC LJ71C24, User Manual

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10 DATA COMMUNICATION USING THE NONPROCEDURAL PROTOCOL
10.1.2 The receive area and the received data list
The following shows the list of the receive area and the receive data for performing
data reception using the nonprocedural protocol.
(1) Receive area
The receive area is a memory area for storing the data received from the external
device and the receive data count in order to read the receive data to the CPU
module. By default, the receive area is assigned to addresses 600
H
to 7FF
H
(CH1 side) and A00
H
to BFF
H
(CH2 side).
Buffer memory
Receive data count
Receive data
CH1
address
600
H
601
H
7FF
H
(Default)
Writes the receive data storage count when the CPU module
is requested to read the receive data.
Stores the specified data area of the receive data.
The receive data count units (word/byte) depends on the value
specified with GX Works2.
Recei
ve ar
ea
•
•
•
to