Mitsubishi Electronics QJ7MES96 Thermostat User Manual


 
6
FUNCTIONS
6.1 DB Interface Function
6.1.10 DB buffering function
6
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1
OVERVIEW
2
SYSTEM
CONFIGURATION
3
SPECIFICATIONS
4
SETTINGS AND
PROCEDURE TO
OPERATION
5
INSTALLATION AND
UNINSTALLATION
6
FUNCTIONS
7
MES INTERFACE
FUNCTION
CONFIGURATION TOOL
8
DB CONNECTION
SERVICE AND
SETTING TOOL
(7) DB buffering operation
The job data whose trigger condition has been met is processed as shown below
depending on the status of communication or DB buffering settings.
Check the DB buffer status (No. of bufferings, utilization) and prevent the full
status of the DB buffer.
• Section 7.10.4 Setting items in DB Buffering
• Section 7.13.6 Operating the DB buffering
Processing content
The job processing which is started up while the data is being stored differs
depending on the settings of DB buffering.
(8) Operation while data is being stored to DB buffer in this section
Table 6.4 DB buffering operation
Communication
status
Data of
DB buffer
DB buffering setting Operation
Transmission
impossible
Stored/
Not stored
Invalid Job execution is cancelled.
Valid Job data is stored to DB buffer.
Transmission
possible
Stored
Invalid Data is sent to database.
Valid
Immediate sending Data is sent to database.
Adding to the buffered data Job data is stored to DB buffer.
Not stored Valid/Invalid Data is sent to database.
1 When the job data cannot be sent to the database, one of the following
processing is performed after the detection of a timeout.
DB buffering function is invalid : Job execution is cancelled.
DB buffering function is valid : Job data is stored to DB buffer.
2 The content of DB buffer is resent after recovery.
Automatically resend buffer : After recovery, the data is resent automatically.
Manually resend buffer : After recovery, the data is resent when the resend
operation is performed.
Figure 6.12 Processing content of DB buffering
After sending,
timeout detected
Stored to DB buffer
Communication recovery
Job startup Auto resend Job startup
Resend Automatically
resend buffer data
Send
Resend Manually
resend buffer data
Manual resend
operation