Checking The Operation Status Of Db Buffering - Mitsubishi Electric Melsec Q Series User Manual

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MES INTERFACE FUNCTION CONFIGURATION TOOL

7.13.5 Checking the operation status of DB buffering

The current and past maximum values of No. of DB buffering data and buffer utilization
can be viewed.
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- 142 7.13 Online - Remote operation
7.13.5 Checking the operation status of DB buffering
*1 The startup log can be checked from [Online] - [Working log].
Section 7.12.5 Checking the working log of the MES interface module
*2 [Enable detailed logging] is selectable only when [Test mode] is selected in [Job settings].
Section 7.10.1
When [Enable detailed logging] is checked, [Enable startup logging] is also selected.
The detailed log can be checked from [Online] - [Working log] - [View details].
Section 7.12.5 Checking the working log of the MES interface module
*3 When marking a check in [Disable writing to database], the following is executed.
• Execute [Communication action] set in a job and send rollback at the end.
When the following items exist, an error will occur.
[Server Service setting]: IP address, port number, user name, password, data source name
[Communication action]: Table name, field name
• When the database is Wonderware
of [Communication action] that is set in the job.
SQL text: "INSERT INTO History (DataTime, TagName, Value) SELECT TOP 0 NULL, NULL,
NULL :"
When any one of the following items is incorrect, an error will occur.
[Server Service setting]: IP address, port number, user name, password, data source name
An error will not occur even when [Communication action] is incorrectly set.
3 Clicking the
Execute
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Table 7.97 Items displayed in [DB buffering status]
Display
*3
No. of bufferings
*1 *3
Buffer utilization
*1 The buffer utilization is stored as an integer. (Digits after decimal point is truncated.)
Utilization rates of the Automatically resend buffer and Manually resend buffer are compared, and
the greater buffer utilization rate is displayed.
*2 The maximum values are cleared when the MES interface module power is turned OFF.
When power is reapplied, No. of bufferings and Buffer utilization at the time are displayed as
maximum values.
*3 The space is displayed as blank during data acquisition or in the case of failure of data acquisition.
When the buffer utilization is high, ensure the capacity of the CompactFlash card.
Section 7.6.4 (7) DB buffering capacity (Range: 16MB to 512MB, Default:
64MB)
®
Historian, the following SQL text is sent during execution
button changes the job status.
Figure 7.110 [DB buffering status]
Now
Displays the current number of
buffered data (jobs that have been
buffered).
Displays the current buffer utilization.
Description
Maximum
Displays a past maximum value in the
number of buffered data (jobs that
have been buffered).
Displays a past maximum value in the
buffer utilization.
*2