General Meter Operation Released
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Cashpower Gemini HMI
– User Guide
© Gyr (Pty) Ltd
7.2.2.3
Token Overflow Rejection
This occurs if the token is valid, but rejected because the current credit register would overflow.
The following is displayed:
The happy face icon is flashed.
The sad face icon is turned on for 10 seconds.
If the token is rejected because the current credit register would overflow, the token
can be used at a later stage when the credit in the meter has reduced.
7.2.2.4
Incorrect Token
If the token is rejected, the following will be displayed:
The happy face icon is turned off.
The sad face icon is flashed for the reject time.
NB: The reject function is included to discourage the entry of random numbers in an attempt to
defraud the meter. The reject time will eventually settle at a maximum time of 82.5 seconds.
7.2.2.5
Duplicate Token
If the token is rejected because it has previously been entered i.e. a duplicate token:
Both the happy face and sad face icons are flashed simultaneously for 5 seconds.
7.2.2.6
Expired Token
If the token is rejected because it is older than the oldest token
in the meter log i.e. „expired‟:
Both the happy face and sad face icons are alternately flashed for a period of 5 seconds.
7.3
Token Decryption and Processing
The Gemini HMI Version 11 meter will only accept tokens in the STS format.
The meter accepts information transferred as specified in the Standard Transfer Specification release
1.0:1995 with key typing included. Key expiry is not implemented.
STS tokens comprise 20-digit numbers.
The following token types will be recognised and accepted:
Electricity credit (meter-specific token)
– refer to section 7.3.1.
Set 1st dispenser key (meter-specific token)
– refer to section 7.3.2.
Set 2nd dispenser key (meter-specific token)
– refer to section 7.3.3.
Clear tamper (meter-specific token) - refer to section 7.3.4.
Set maximum power load or power limit level (meter-specific token) - refer to section 7.3.5.
Set current credit levels (meter-specific token) - refer to section 7.3.6.
Clear credit (meter-specific token) - refer to section 7.3.7.
Initiate dispenser test (non meter-specific token) - refer to section 7.3.8.
Commissioning (non meter-specific token) - refer to section 7.3.9.
Commissioning (meter-specific token) - refer to section 7.3.10.
Decommissioning (meter-specific token) - refer to section 7.3.11.
Set credit-metering mode (meter-specific token) - refer to section 7.3.12.
