Landis+Gyr E470 User Manual page 17

Meter Operation
4.6.4 PAYG mode
4.6.5 Gas Credit mode
E470 Tokenless Smart Prepayment Meter
Issue: 1.8
Present balance register in single wallet mode
The present balance register within the electricity meter holds the credit or
debt value for both gas and electricity usage. Electricity costs are taken in
the normal way, gas costs are taken as described in 7.4.2. Emergency
credit may be applied in the normal way.
Supply disconnect/reconnect in single wallet mode
After a disconnect and when credit is next added, sufficient to place the
meters back into prepaid credit the following occurs:
 The meter will allow the customer to reconnect the electricity
supply using the button on the front of the meter.
The meter will generate a pass-through message for the gas meter

to request instantaneous gas reconnect. The message will be
passed on the next 30 minute boundary.
 The meter will cancel any unsent disconnect pass-through
messages on receipt of a payment message, sufficient to place the
meter back in prepaid credit.
The meter can be configured to operate in pay-as-you-go (PAYG) mode. In
this mode of operation the meter will not disconnect at zero but will allow
the user to accumulate a certain amount of debt. Providing that the user
keeps within an agreed amount of debt supply will remain connected for the
customer.
To support this mode the meter can be configured to hold a PAYG
disconnection value, the value has a range of 0 to -500 (debt).
When operating in PAYG mode, the meter will disconnect supply when the
present value in the meter falls below the configured PAYG disconnection
value.
Emergency credit operation is disabled by configuration when using the
PAYG mode, debt recover will still operate as normal.
The meter can be used to configure the operating mode of a paired gas
meter. Using this mode the mode of the gas meter can be switched
between prepayment and credit operation. A request to change the mode
of operation for the gas meter can take upto ½ an hour as the request is
dependant on a pass through message to perform the request.
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