Chapter 6 - Operation
UNITROL 1020 User Manual 3BHS335648 E82 115
6.4.4.2 Communicating with the AVR
Once the port connection is
configured, the CMT1000 performs
a scanning process to detect the
AVR over the interface selected
(USB or Ethernet). During the
scanning time (few seconds) the
access levels (Control and Monitor)
cannot be changed.
Figure 6-7 CMT1000 during AVR Scanning Process
As soon as an AVR is detected, the
CMT1000 displays the AVR-ID and
channel identification (Main or
Redundant). The access level/type
is controlled by the green slide bar
and can now be used to change to
Monitor or Control Access. When
the CMT1000 is in Offline, most
parameters are read from the
computer memory, only the
information shown in the main
window is read from the device.
Figure 6-8 CMT1000 during Offline
As long as the CMT1000 has Monitor or Control Access, the main window looks as in
Figure 6-9 and Figure 6-10. In this case all parameters accessed through the menus are
read from the device.
A green LED (“EEPROM”) on the
right side of the window indicates
whether all parameters in the RAM
are stored in the non-volatile
memory of the device or not. The
LED is lit (green) when all
parameter values match the ones
stored in the EEPROM memory.
Figure 6-9 CMT1000 during Monitor Access
If the LED is dark, at least one
parameter has been modified and
its value will be lost after restarting
the device.
To store all parameters in the
EEPROM using CMT1000, click
"Write parameters to EEPROM"
from the File menu.
Figure 6-10 CMT1000 during Control Access
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