Tyco Electronics Galaxy SC Controller J85501F-1
7 - 53 Feature Descriptions Issue 13 February 2001
security level and is supported from the T1.317 interface and EasyView.
The Galaxy SC supports a binary upgrade using the Xmodem protocol
or an ASCII text upgrade. Generally the binary upgrade file will have a
.bin extension and the S-record upgrade file will have a .abs extension.
A binary upgrade will take less time than a text upgrade.
The Galaxy SC upgrade procedure follows the steps outlined below to
reprogram the on board EEPROM chips with the new version of
software:
• Upload a binary or ASCII text software upgrade file from the
access port
• Verify the checksum of the uploaded file
• Clear the EEPROM chips
• Program the EEPROM chips
• Verify the checksum of the programmed EEPROM chips
Once the Galaxy SC starts to upload the software upgrade file, the
current configuration is lost and when upgrading completes the system
will reboot with a default configuration. It is therefore very important to
backup the system configuration so that it can be restored after the
upgrade is completed. See the backup and restore section of this manual
for details on how to backup and restore the system configuration.
Statistics The statistics features permit collecting plant data over various time
periods. These data are held in battery-backed RAM to protect against
loss during power failure. Battery discharge statistics can be used to
analyze battery performance. In addition, the controller keeps three
types of statistics logs: basic, trend, and busy hour statistics.
Two basic values are used throughout the statistics logs, instantaneous
values and hourly average values. They are defined as follows:
Instantaneous values: Readings for the monitored value. Plant and
rectifier measured values are read every 5 seconds. Remote Peripheral
Channels and Derived Channels are read every minute.
Hourly average values: At each change of hour the channel average is
set to 0 and the sampling of instantaneous values begins at the
instantaneous value data rate. Each reading is added and the total is
divided by the number of readings at the next change of hour. Ten
instantaneous values are required for an hourly average to be recorded.
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