Mitsubishi Electric MELSEC iQ-R Series User Manual page 62

■Data reception when the receive data storage area < receive data length (Reception by receive
end data quantity)
If a specified receive end data quantity is bigger than the receive data storage area, the 'receive buffer memory length
designation' (Un\G167/327, default: 512) minus 1 is used as the receive end data quantity instead.
(Receive data storage area) > (Data length transmitted from the target device)
Ex.
When 550 words of data is received by the CH1 interface three times on the condition that the receive area for the CH1
interface is Un\G1536 to 2047 (default value).
Target device
C24
Reception data read
request (X3)
Program
3 DATA COMMUNICATION USING NONPROCEDURAL PROTOCOL
60
3.1 Receiving Data from Target Device
1st data
511 words 39 words
INPUT
Read data....
1st 511 words
2nd data
472 words 78 words
INPUT
Read data....
1st 39 words and
2nd 472 words
3rd data
733 words 117 words
INPUT