Chapter 4—System Configuration and Commissioning
Power Xpert C445 Global Motor Management Relay MN042003EN—January 2019 www.eaton.com 55
RTC Module—Non-Volatile Memory Operation
One of the main purposes of the RTC module is to simplify the replacement of a C445/
Base Control Module if desired. The RTC module stores a copy of the configuration
parameters that can be transferred to another unit with minimal downtime.
The memory module functionality in the RTC chip operates as follows:
1. When plugged into a C445/Base Control Module for the first time, the C445 will write
its configuration to the non-volatile memory on the RTC module continuously.
2. When plugged into a different C445/Base Control Module, the RTC module will
download the configuration to that new C445/Base Control Module. Once
download is completed, the new C445/Base Control Module will begin
continuously writing its configuration to the memory on the RTC module.
3. Unplugging an RTC module and plugging back into the same C445/Base Control
Module will simply result in resuming normal operation. No configuration download
from the memory module to the C445 will take place.
4. The RTC module uses a non-volatile memory to store the configuration parameters
of the host C445/Base Control Module device.
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