Clearing the flash, Clearing eeprom, Telnet access – Comtrol DeviceMaster LT User Manual
Page 134: Clearing the flash clearing eeprom
134 - Troubleshooting and Technical Support
DeviceMaster LT User Guide: 2000586
Rev. B
Clearing the Flash
The EEPROM memory is programmed with a number of default values. The
values that you can modified are shown in the following table.
Clearing the Flash
The flash only has program binaries. There is no user data stored in the flash. If it
is necessary to erase the binaries, the default application (SocketServer.bin) can be
erased using the fis init command from the DeviceMaster LT using a serial
connection, that is Port 1 through a null-modem cable and a COM port.
See
Establishing a Serial Connection
through 6) to access
RedBoot and enter fis init -f at the RedBoot prompt.
There is no easy way to remove the bootloader binary. Removal of the bootloader
binary would leave the DeviceMaster LT inoperable and require that it be
returned to the factory to be reprogrammed.
Clearing EEPROM
The user configurable values in the EEPROM, can be accessed and set in three
different ways. All of the values can be set using a serial connection (Port 1 with a
null-modem cable connected to a COM port). Most of the values can be accessed by
using the Web Server (SocketServer or NS-Link equivalent) or telnet. Refer to the
appropriate procedure for your situation:
•
•
•
Telnet Access
Use this procedure to access the DeviceMaster LT configuration through telnet,
Note: To reset authentication, see
on Page 135 or use the
1.
Open a telnet session, enter the DeviceMaster LT IP address. If using
Windows, open a Command window and type telnet [ip_address].
Note: Press the Enter key if you have not programmed a password or use the
password previously configured. The DeviceMaster LT does not come
pre-programmed with a password.
2.
To return the IP address to the default value, type ip 192.168.250.250 255.255.0.0
192.168.250.1 and press Enter.
3.
To reset the password, type password and press Enter.
4.
To reset the telnet timeout value, type teltimeout 300 and press Enter.
Parameter
Name
Default Value
User
Configurable
Web or
Telnet
Console
Port
Port
Authentication None
Yes
No
No Yes
IP Address
192.168.250.25
0
Yes
Yes
Yes
Yes
IP Mask
255.255.0.0
Yes
Yes
Yes
Yes
IP Gateway
192.168.250.1
Yes
Yes
Yes
Yes
Password
Blank
Yes
Yes
No
Yes
Telnet
Enable
Yes
Yes
Yes
Yes
Telnet Timeout 300 sec.
Yes
Yes
Yes
Yes
Bootloader
Timeout
15 sec.
Yes
Yes
Yes
Yes
SNMP
Enable
Yes
Yes
Yes
Yes
SSL†
Disable
Yes
Yes
Yes
Yes
† SSL is a security feature available with SocketServer v7.00 and later.