Rockwell Automation 2711-KA1_KC1_TA1_TA4_TC1_TC4 PanelView Terminals for DOS/Windows - Manual (Page 50)

PanelView 1200 Terminal Functions
Chapter 2
2-21
Unit Tests
Choose Unit Test to check the operation of various components of a
PanelView 1200 terminal. The following illustration shows the Unit Tests
screen for a touch screen terminal.
20205
UNIT TESTS Battery: Good
Previous Diagnostics
Checksum Failed
Memory
Checksum
Degauss
User
RAM
System
RAM Power Loss During User RAM" Test may Corrupt User RAM
Display
Touch
Panel
Exit
User RAM performs a read/write test on Random Access Memory
(RAM) to determine its ability to store data. The results are displayed on
the terminal’s display panel.
Attention Loss of power during this test could result in loss of
the application data stored in battery-backed memory. If this
occurs, you will have to repeat the downloading process.
Degauss (color terminals only) demagnetizes the terminal screen.
System RAM Test performs a read/write test to a portion of the
Random Access Memory (RAM). This test is similar to the User RAM
Memory option, but does NOT test the battery-backed RAM, where the
application file is stored. This keeps your application file from being
corrupted even if the power is accidentally cut midway through this test.
Memory Checksum performs a checksum test of all memory and
displays the results.