Mitsubishi QJ71C24/-R2 User Manual page 130

6 DATA COMMUNICATION USING THE NON PROCEDURE PROTOCOL
External device
Q series C24
Reception data read
request signal
X3
Sequence program
6 - 10
2) Reception by received data count
When the received data count is set larger than the receive data storage
area, the receive buffer memory length (default: 512 words) -1 set in buffer
memory addresses A7
(Receive data storage area) > (Data length received from external device)
(Example) When 550 words of data is received through the CH1 interface
1st data
511 words 39 words
INPUT
Read data....
1st 511 words
/147 is processed as the received data count.
H H
in three parts when the CH1 interface receive area consists of
addresses 600 to 7FF
H
2nd data
472 words 78 words
Read data....
1st 39 words and
2nd 472 words
(default value)
H
3rd data
433 words
INPUT
MELSEC-Q
117 words
INPUT
6 - 10