Mitsubishi Melsec-L Series User Manual page 98

(2) No procedure
The following is the receive process performed in the fixed buffer number 1 area for the connection number 1.
Initial normal completion
Open completion signal
(address: 5000
BUFRCVS instruction
In interrupt process
Confirm the normal completion of the initial process. (Initial normal completion signal (X19): ON)
1
Establish a connection between the E71 and the connected device and confirm the normal completion of the
2
open process of the connection number 1.
Receive data from the destination.
3
• Request the CPU module to start up the interrupt program.
The interrupt program starts up. Execute the BUFRCVS instruction to read the receive data length and receive
4
data from the fixed buffer number 1.
End the interrupt program to restart the main program.
5
96
Initial Open
process process
1
signal X19
2
[b1])
H
Cycle
Program
Scan
Receiving data
ACK
(TCP only)
3
END
Interrupt process
Scan
process
4
5
Cycle
END
Scan
process