Mitsubishi Electric Melsec Q Series User Manual page 31

1
OVERVIEW
(4) Log data are available in the event of an access error
After connection with a database, when there is a communication error, a log of the
error contents can be recorded to the database side.
Analyzing the log can protect data and analyze the error.
(5) Directions from the information system can be realized.
Processing registered in the MES interface module can be started from information
system applications.
This enables to realize production directions from the information system.
Not only can data be sent to a database but it can also be received from a database.
This enables to download data such as production information from information
system databases.
<MES interface module>
<MES interface module>
Figure 1.6 Obtaining logs for access errors
1) Instructs job execution.
2) Starts registered
processing.
(Job execution)
1) Instructs job execution.
2) Starts registered
processing.
(Job execution)
Figure 1.7 Realization of directions from the information system
Database
DB Connection
Service
Access
SQL
log
failure
log
<Information system>
Database
3) Sends data.
<Information system>
Database
3) Sends data.
1.1 Features
1
2
3
4
5
6
7
8
1
- 6