Chapter 4—System Configuration and Commissioning
52
Power Xpert C445 Global Motor Management Relay
MN042003EN—January 2019
www.eaton.com
Real-Time Clock and Memory Backup Module (RTC Module)
The Real-Time Clock and Memory Backup module is an optional module that plugs into the
Base Control Module. It is located under the communication card module.
This board provides non-volatile (NV) application configuration backup memory and clock
time management.
Setting the Real Time Clock (RTC)
There are three ways to set the Real Time Clock parameters:
1.
The Monitoring User Interface with the following path
PRG
R
Real Time Clock
R
Date & Time
2.
Using a Modbus or Modbus TCP master and writing to the RTC parameters. Refer
to the Modbus register map in
Appendix D
.
The RTC parameters begin with Modbus register 4000. Each individual time/clock
parameter can be written to set the RTC, or a single parameter (register 4010) can
be written with a value containing the “Real Time clock in Seconds from the UNIX
Epoch”. This is a 32 bit value.
3.
Using the Power Xpert
in
Control Software Tool and selecting a single button to set
all RTC parameters from the RTC parameters on the computer running the
software.
This is the most straight forward way to set the RTC. Connect with the C445 via
one of the supported protocols and ports and perform the following steps:
(1) Once online with the C445, select the Real Time Clock icon as shown below.
The Real Time Clock window will open as below.
4.
Select the proper time zone.
