Mitsubishi Electric MELSEC iQ-R MES Series User Manual page 82

Considerations for using databases
■Restrictions for using databases
• For using a relational database, a license according to the number of MES interface modules is usually required. (Varies
depending on the relational database type and license format.)
For details, consult the relational database vendor.
• The redundant relational database cannot be used.
■When using SQL Server
• Set "SQL Server and Windows Authentication Mode" for the server authentication.
Right-click the server to be used in the object explorer of SQL Server Management Studio  [Properties]. Select "SQL
Server and Windows Authentication Mode" for the "Server authentication" in the "Security" on the "Server Properties"
screen, then restart the SQL Server.
• An output argument, an input/output argument, and a return value of the stored procedure that returns a result set cannot
be acquired.
• When installing a software version '1.01B' or earlier of MX MESInterface-R, set the collation sequence of SQL Server to the
default (SQL_Latin1_General_CP1_CI_AS).
This is not applied when installing a software version '1.02C' or later of MX MESInterface-R.
• When MX MESInterface-R whose software version is "1.03D" or earlier is installed, use SQL Server with any of the
following condition:
- The owner of the database file created with SQL Server is an SQL Server authenticated user.
- The server administrator authentication (sysadmin) is not added to the server role of the user whose field information is to
be referenced.
However, this restriction is not applicable when MX MESInterface-R whose software version is "1.04E" or later is installed.
■When using Access
• Using in the following environments is not recommended.
Where under overload
Where high reliability, such as non-stop operation for 24 hours, is required
For details, refer to the website of Microsoft.
blogs.technet.microsoft.com/officesupportjp/2017/02/08/ace_memory
• The number of fields that can be updated in one communication action is up to 127.
• Multiple accesses cannot be made to one file.
(The access from multiple MES interface modules cannot be made.)
■When using MySQL
• It is an open source database. For the software versions in which the operation has been checked, refer to the following
section.
(Page 40 Accessible databases and supported software)
■When using PostgreSQL
• It is an open source database. For the software versions in which the operation has been checked, refer to the following
section.
(Page 40 Accessible databases and supported software)
■When handling "(Blank)" DB fields
• For the considerations when handling a DB field for which "(Blank)" was set, refer to the following manual.
MELSEC iQ-R MES Interface Module User's Manual (Application)
5 SYSTEM CONFIGURATION
80
5.3 Considerations for System Configuration