Mitsubishi QJ71E71-100 Series, Руководство пользователя

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MELSEC-Q
2 USING THE E-MAIL FUNCTION
(1) Reception using the sequence program
The following explains the designation method in a sequence program.
For details, see Chapter 6, "MRECV".
Instruction
Read the receive
mail information
Processing program when normal completion
Processing program when abnormal completion
ZP.MRECV "U0" D0 D100 M0
M1
M1 M0
Create control data at D0 and on
E-mail is read if there is recieve mail in
Ethernet module
Un\G9858.F
(2) Execution timing of the instruction
Initial normal completion (X19)
Number of mails remaining
on the server
(Buffer memory address:
22640)
Mail buffer
(Buffer memory address:
9857 to)
Flag indicating whether
there are receive mails
(Buffer memory address:
9858, bit 15)
MRECV instruction
MRECV instruction
completion device
MRECV instruction
completion 1
Initial
processing Receive mail
confirmation
MRECV MRECV
Mail 1 Mail 2
Mail 1
0 1
Inquiry interval Inquiry interval
Receive mail
confirmation
1 scan 1 scan
Abnormal
completion
2
Mail 2
1)
2)
2) 4)
3)
5)
6)