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6
FUNCTIONS
6.1 DB Interface Function
6.1.1 DB interface function operation
6
- 1
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
CHAPTER 6 FUNCTIONS
This chapter explains the MES interface functions of the MES interface module.
The MES interface functions are set using MES Interface Function Configuration Tool.
Chapter 7 MES INTERFACE FUNCTION CONFIGURATION TOOL
6.1 DB Interface Function
The DB interface function executes access to the database in units of jobs.
6.1.1 DB interface function operation
The operation of the DB interface function is shown below.
*1 Collects tag data. Section 6.1.3 Tag function
*2 Activates a job. Section 6.1.4 Trigger monitoring function
*3 Stores data and trigger times temporarily in the module's internal memory when loads are
concentrated.
Section 6.1.5 Trigger buffering function
*4 Accesses the database and performs arithmetic processing.
• Section 6.1.6 SQL text transmission (Communication action)
• Section 6.1.8 Arithmetic processing function (Operation action)
*5 Executes programs. Section 6.1.9 Program execution function
*6 Temporarily stores SQL texts in a CompactFlash card when a communication error occurs.
Section 6.1.10 DB buffering function
Figure 6.1 DB interface function operation
Execute
file
Job 1
Component
Tag 1
Trigger monitoring
*2
Program execution
*5
Action
*4
DB buffering
*6
Application server computer
Database server computer
Programmable
controller CPU
MES interface module
Device
Communication action 1 (Update)
Operation action 2
Communication action 3 (Insert)
Communication action 10 (Select)
D1000
Executed
in order
Database
Trigger buffering
*3
*1