Diagnostic Mode; Commissioning Mode; Registers, Load Profile And Snapshots; Main Energy Registers - Secure Liberty 100 Technical Reference Manual

o Maintaining payment and time based debt payment history event log

5.1.4 Diagnostic Mode

Only authorised users can access this mode by entering a 6-digit Engineering Code (common for all Liberty 100
meters) at the meter keypad. The meter can display the following information in diagnostic mode:
● The current application firmware name and version
● Metrology firmware name and version
● The number of times the switch has opened and closed
● Maximum demand along with logged date and time
● GPRS signal strength
● Load Limit value
● Number of hours the meter has been without mains power (i.e. running on battery)
● Number of times the supply has gone Off and On
● Maximum Emergency Credit limit
● The number of accepted and rejected UTRNs (in Prepayment mode). This includes all vending UTRNs
and supply disconnection/reconnection UTRNs that are entered manually or sent over the WAN. All
accepted vend UTRNs will have additional details such as transaction amount, date and time of vend
etc.
The Engineering Code can be entered at the meter's keypad in the same way as for UTRN entry. A short press
of key 'A' will initiate the code entry mode. Once in this mode key 'A' changes to a backspace function to delete
the last entered digits, deleting all digits will redisplay 'Vend Code'. At the end of code entry, a short press of key
'B' or waiting 20 seconds will initiate the code authentication process.
Once in diagnostic mode, each numeric key press will display associated diagnostic displays as configured. A
short press of key 'A' or no key press for 120 seconds (2 minutes) will return the meter to its default Auto scroll
mode displays. Key 'B' in this mode is used to scroll backwards through the current display list. Refer to
Annexe-II: Diagnostic Mode Displays to see the various diagnostic displays associated with each numeric key
for both Prepayment and Credit modes.
Note: This mode cannot be used to change the meter's operating mode such as Default, Prepayment or Credit
mode.

5.1.5 Commissioning Mode

After physically installing the meter the commissioning process is carried out to join other devices to the HAN
and WAN system as well as register them with the HES. The commissioning process is automatically initiated
by the electricity meter when it is powered up for the first time at a premise. The In Home Display, if present,
can also be used for the commissioning process.
If carried out correctly and there is sufficient ZigBee and GPRS signal strength then the entire commissioning
process should take less than ten (10) minutes.

5.2 Registers, Load Profile and Snapshots

5.2.1 Main Energy Registers

Liberty 100 measures, records and displays metered energy values for import and export active and reactive
energy. The following four cumulative energy registers are configured as energy channels for the measuring
element:
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