Chapter 12: Troubleshooting
74
DE5450S Remote Programmer Guide Rev. 8
PROBLEM DIAGNOSIS
POSSIBLE
SOLUTION
B4.
The initialization
string is the
wrong one for the
modem in use.
B4.
Select the correct string from the list of
Recommended Initialization Strings.
B.
Failure to com-
municate with the
control panel via
the modem.
(cont.)
B5.
Modem is not
properly installed
in operating
system
(Windows).
B5.
Make sure that the modem is
recognized by Windows.
If not, click Start
Setting
Control
Panel. Double click the Modems icon
and follow the instructions on the
displayed Install New Modem window.
C.
PC fails to
communicate
with the control
panel via the
Serial Port.
C1.
The RS-232
cable is
disconnected
from the Com
Port of your PC.
C1.
Verify proper connection of the RS-232
cable.
C2.
The
PowerMax/Power
Master is not set
to the installer
mode.
C2.
Set the control panel to the installer
mode.
C3.
You may have a
definition conflict
in the OPTIONS
menu/
Communications
settings
C3.
Make sure that the Serial Port option is
currently selected.
C4.
Your serial port is
defined to work
with high or low
baud rate.
C4.
Make sure 9600 bps option is currently
selected in the OPTIONS menu /
Communications.
C5.
You may have a
COM Conflict.
C5.
Verify that the correct Com Port is
specified in the OPTIONS menu /
Communications
