Mitsubishi Electric Melsec Q Series User Manual page 32

2 USING THE E-MAIL FUNCTION
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(3) Flow of the e-mail
The diagram shown below illustrates the flow of e-mails from the local station's
Ethernet module to the external device after the monitor values match with the
news conditions.
Programmable
Ethernet module
controller CPU
1)
Read monitoring
Status
information
Device value
2)
Check news
conditions
Match
3)
Send mail
1) Reads the monitoring information (such as status and device values) of the
programmable controller CPU.
2) Checks whether the monitoring information read and the news conditions set
by the user match. (Checks match/mismatch of the news conditions.)
3) Sends an e-mail when the monitored values match with the news conditions.
Multiple news conditions may be set so that an e-mail can be sent
(notified) when any of the conditions matches. (See Section 2.9.1.)
Set the CPU inquiry time interval used by the Ethernet module to monitor
the programmable controller CPU, considering the interval of change
time in the monitoring target.
After a news condition match occurs, the Ethernet module must confirm
the mismatches of other news conditions for the same monitoring target.
The next e-mail can be sent only after the Ethernet module confirms the
mismatches of these news conditions.
4) The Subject of e-mail, which is sent when the notification conditions match, is
fixed data. The format of the Subject is as follows (see Section 2.9.2):
• When monitoring the CPU status
Subject = "No. of transmissions ( 1), CPU model name, Status,
• When monitoring the CPU device
Subject = "No. of transmissions ( 1), Matched condition device,
1 This is the number automatically added each time an Ethernet module sends
an e-mail. The numbers are counted up from 1. When the number reaches
4294967296, the number is cleared to 0. Then the numbers are counted up
from 0 again to 4294967296.
POINT
The e-mail transmission function of the programmable controller CPU and the
communication function using the random access buffer can be used together.
No match
4)
Detection time"
Monitoring value... "
MELSEC-Q/L
Mail server
External
device
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