User guide

eWON 500-2001-4001-4002 User Guide - eWON Configuration
eWON 500®2001®4001®4002® Version 4_3_0 - User Guide - 10/5/05 - ©ACT'L sa - Page 51
4.3.6.7 Default Config
Using this menu, the user can return to a default well known configuration of the communication setup of the eWON.
This will NOT modify anything on the other configuration of the eWON. The IP address will not be modified.
This option requires a forced reboot of the eWON (software or hardware).
Also remember that the communication setup is NOT affected by a format of the eWON.
Figure 30: eWON Reset to default page
4.3.7 STORAGE CONFIGURATION
4.3.7.1 Overview
eWON stores configuration and recording data in its flash memory.
eWON flash memory is divided into areas of different sizes that can be erased and reformatted individually during a partitioning operation.
4.3.8 The various types of information stored
4.3.8.1 Historical data
4.3.8.1.1 Overview
A special file system is used for storing historical data. This file system is located in its own partition.
This partition contains a fixed number of 3 files that contain circular data:
• Incremental recordings
• Events logging
• Alarm history logging
Each of those files receives a predefined maximum amount of space.
When this amount of space is reached, then the older data are erased, in order to free space for the new data.
4.3.8.1.2 Partitioning configuration
The size allocated to the historical data partition can be configured by the user (from 1 MB to 3 MB).
In any case the Events logging and Alarm history logging size remains the same, only the Incremental recording size changes.
4.3.8.2 Retentive values
4.3.8.2.1 Overview
This is a fixed flash memory block that contains the retentive values.
The dimension of that block does not need to be modified.
4.3.8.2.2 Partitioning configuration
Retentive values use a fixed memory size.