MacKay Guardian SOLO, Operation And Maintenance Manual

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MacKay Guardian™ Solo
Operation and Maintenance Guide, v. 1.5
9)
The day of week is tracked in the Solo and is displayed on the LCD along with the time-
of-day and other service information when the reset button is pressed. Sunday is
considered day 1, and the time is displayed in 24 hour format.
5)
The Solo uses the time of day clock to schedule many events, including but not limited to,
rate changes, on/off periods, self-diagnostics, and no parking periods.
6)
The Solo internal display timers are designed to ensure that a user never receives less
than the paid parking time. The coin chute measurements and main board validation
determine if the user receives paid parking time. If the display shows 20 minutes after
the last coin has been inserted, the count down timer is designed such that the user will
never get less than 20 minutes of purchase time.
7)
The time on the internal clock will be reset to the current network time whenever data is
retrieved from the Solo. Date and time can also be sent using the PDT. It is important
that the time/date set on the PDT is accurate as the PDT date and time is considered by
the Solo as always being accurate and is uploaded to the Solo each time the PDT
retrieves data.
8)
All maintenance data and card transaction records stored within the primary audit data
are time-stamped based on the current date and time in the meter.
3.13 Memory
The Solo stores all required maintenance and card transaction data, keeping a secondary copy of
all records in memory even after they are transmitted to the back end. The redundant records are
eventually replaced / overwritten over time, but will never be overwritten in less than 45 days.
The backup audit records can be collected / retrieved from the Solo in the event of the loss of
primary audit data from a PDT / back end, provided 45 days has not elapsed since the audit
records were created.
3.14 Memory Retention at Power Failure
With the exception of the current time of day and the current purchase time (if any), stored data
remains unaffected and is retained during power outages, such as a depleted or disconnected
battery. The Solo memory stores programs and data for 10 years without degradation.
3.15 Revenue Audit Capabilities
1)
The Solo maintains a count of each type of valid coin, invalid coins, token card
transactions, and summary of electronic cash amounts and credit card amounts, storing
each type of information separately in memory.
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