Mitsubishi Electric Melsec Q Series User Manual page 174

6 DEDICATED INSTRUCTIONS
Caution
Program example
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(1) Construct an interlock circuit to prevent the MSEND instruction from being
executed while the MRECV instruction is being executed.
(This is because the MRECV and MSEND instructions use the random access
buffer memory area as a work area.)
The following example shows a program that receives e-mails.
This program performs e-mail reception processing using the receive command
(X21).
Processing program when normal completion
Processing program when abnormal completion
When I/O signals of the Ethernet module are X/Y00 to X/Y1F
MELSEC-Q/L
Designate to make inquiry
to the server.
Designate to read the head mail.
Designate to adjust to the data
length of the receive mail.
Designate to adjust to the header
data length of the receive mail.
Read receive mails.
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