SC300 Handbook
124
Copyright © 2007-2018 Eaton Corporation. All Rights Reserved.
IPN 997-00012-03 B2 Issue B2 July 2018
Problem Possible Cause Required Action
SC300 serial communications
are disabled.
Check S3P Access is enabled. See details
on page 116.
Password required to change
settings (using
PowerManagerII).
See Write Access Password on page 116.
Web communications
problem
Ethernet communications
problem.
See previous entry.
Cannot connect to web server. Check IP address and other settings in
SC300 are correct. Check correct IP
address is used in web browser address
bar. See Ethernet Communications on
page 104.
Check HTTP Access or HTTPS Access is
enabled. See Web Access Security on
page 117.
Cannot log on to web server. Incorrect Logon ID or Password, or no
active users setup.
Use SNMP to set up an active user. See
Web Access Security on page 117.
Web communications lost
(Comms Lost error message).
Check that the SC300 is operating.
Check the Ethernet communications
connections. See previous entry.
Check web browser type and version. See
Compatible Software on page 6.
Default User log on is not
available.
Default User is not setup or not active.
Use SNMP to set up a Default User. See
Web Access Security on page 117.
A user cannot change settings,
Backup or Restore, Execute
Commands, Upgrade
Firmware, or Edit User List.
Check the user's access levels. See Web
Access Security on page 117.
USB communications
problem
Incorrect, disconnected or faulty
cable.
Check a micro USB cable is plugged into
the USB port and a PC USB port.
Replace faulty cable.
SC300 serial communications
are disabled.
Check S3P Access is enabled. See details
on page 116.
USB driver not loaded Use Device Manager to check that the
driver is correctly installed.
SC300 time/date is incorrect Time/date is different on SC300
compared to Web.
None. Time shown on SC300 is UTC.
Time on PC running Web or DCTools is
local time.
Time needs to be set. See SC300 Internal Clock on page 19.
SC300 time can be set, but is
incorrect when SC300 restarts.
Internal battery is dead. Return SC300 for
service. (If removed, the battery must be
disposed of according to the
manufacturer's instructions.)
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