Service manual

20 – 1
Vission 20/20 • Operation and Service Manual •Vilter/Emerson • 35391SC 2.0
Section 20 • Data Backup
Overview
The database backup screen provides the operator a way
to extract information out of the Vission 20/20 for back-
up purposes or diagnostics, see Figure 20-1. Through
this screen, the operator can download all the Setpoint
Databases, Maintenance Logs, Event Lists, Freeze Data,
Trend Data and Compressor Run Hours to a portable USB
fl ash drive. That information can then be uploaded back
to the Vission 20/20 in the case of data corruption or to
update the Vission program. Built in migrate function
examines the previous setpoint databases, compares it
with newer program setpoint database, and moves the
old information into the new program. In addition, this
screen also allows the operator to reset all values to the
factory defaults.
All of the information saved to the USB fl ash drive is
open information. Meaning none of the information is
encrypted and the operator is free to examine it. The log
fi les are all saved as simple ASCII text and the databases
can be examined with SQLite.
Refresh:
• The Refresh button is used to initiate a scan of the
USB ports and list any devices found in the “Available
Devices” window.
Save / Load
Save / Load section is where the operator can either save
the Vission 20/20 setpoints and log information to a
USB fl ash drive or load from a USB fl ash drive back to the
Vission 20/20.
Save:
• Selecting save allows the operator to save the Vission
20/20 data to a USB fl ash drive using the information
provided further down the screen. The bottom but-
ton will be labeled “Save” when this is selected.
Figure 20-1. Data Backup Screen - Save/Load