Eaton Power Xpert C445 User Manual page 72

Chapter 4—System Configuration and Commissioning
USB Lockout Password
The USB lockout password protection prevents anyone who has not logged into the
system using a USB port from modifying any configuration parameters. Parameters may
be read, but not written.
Out-of-box, there is no active USB Lockout password protection.
The USB lockout password is a 32-bit value that can be set as a Hex, ASCII or decimal
value that fits in 32-bits. Whatever format is used to set the password will need to be used
when entering the password as well, to be sure it is correct. For example, if the password
is set by writing an ASCII value of 1234 and later someone tries to unlock it with a decimal
or hexadecimal value of 1234, it will not work.
The Modbus register addresses that store the 32-bit USB password are 5004/5005. The
Modbus register addresses that must be written to when logging in to a system with a
USB password set are 5006/5007.
Reading the value at Modbus register 5011 will indicate if a USB password is set in the
device or not. If a value of 1 is read, this indicates that a USB password is active. A value of
0 indicates that a USB password is not currently active.
When 5004 and 5005 each contain hexadecimal zeros (0x0000), this means no password
is set. This is also what must be written to these registers to clear a password. The only
way to write to these registers if there is a password set is to first log in. Then once logged
in, hexadecimal 0s can be written to these register to clear the password. A "Reset to
Factory Defaults" also clears/resets the password. Since this can be accomplished using
the button on the Base Control Module, a C445 with an unknown password can be
recovered in this manner, but will need to be reconfigured. All parameters will have been
set to factory defaults, not just the password. Parameters that are locked in USB Lockout
are indicated in Appendix D Modbus Register Map.
Running Lock Option
The Running Lock Option is not a password but is an option that can be enabled or
disabled. When enabled, configuration parameters are "Read_Only" when the motor is
either running or being instructed to run.
Out-of-box, this option is enabled.
To disable this running lock feature and allow configuration parameters to be adjusted
during motor run time, set Modbus register 5008 to a value of 1. To enable this protection
feature and restrict access to modify or write to configuration parameters during motor run
time, reset this value to 0.
Reading the value at Modbus register 5009 will indicate whether this feature is enabled
(locked) or not. If the value read from Modbus register 5009 is 1, this protection feature is
currently enabled (locked). When this feature is enabled, all configuration parameters are
read-only when the motor is running or being instructed to run.
This protection applies to the Power Xpert inControl Software Tool as well. If this
protection is enabled, configuration parameters cannot be modified using this software
while the motor is running or being instructed to run. Parameters that are locked with the
Running Lock option are indicated in Appendix D Modbus Register Map.
Power Xpert C445 Global Motor Management Relay MN042003EN—October 2016 www.eaton.com 59