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6.1 DB Interface Function
6.1.10 DB buffering function
6
FUNCTIONS
(8) Operation while data is being stored to DB buffer
The job processing which is started up while the data is being stored differs
depending on the operation settings of resend buffer selected on each job.
Related settings
• Setting of each job ( Section 7.10.4)
• Operation setting of resend buffer ( Section 7.6.4 (8))
(a) When "Immediate sending (Do not add to the buffered data)" is selected
The following shows the job processing when "Immediate sending (Do not add to
the buffered data)" is selected.
Processing content
*1 When using MES interface module whose first five digits of serial No. is "09101" or earlier, the
processing of DB buffering differs.
Appendix 1.2 (1) (a) For a MES interface module whose first five digits of serial No. is
"09101" or earlier
The new job data whose trigger condition is met may be sent to the database
before the data stored to DB buffer.
1 When the data cannot be sent to the database, it is stored to DB buffer
after the detection of a timeout.
2 When the data is stored to DB buffer (the selected resend buffer), the
status of communication recovery is checked for each time when the job is
started up.
*1
If the communication has not been recovered, the data is stored to DB
buffer.
3 The content of DB buffer is resent after recovery.
4 The job data which is started up before the resend completion is sent
immediately.
Figure 6.13 When "Immediate sending" is selected for the job
After sending,
timeout detected
Stored to DB buffer
Communication recovery
Job startup Job startup
Stored to DB buffer
after confirmation of
recovery
Send
Resend DB buffer data
Resend start
1) 2)
3)
4)
DatabaseJob settings
Job1
Job3
DB buffer
Job10
Job1_DataJob1_Data
2)
1)
3)
Job2
Job2_Data
Job3_Data
Job2_Data
Job10_Data
Job3_Data
4)
Job startup