Gasboy CFN III Manager Manual V3.6 - Manual (Page 157)

MDE-4871 CFN III Manager’s Manual for Windows® XP Embedded - Version 3.6 · August 2010 Page 15-1
Fuel Allocation Fuel Allocation and Miles-per-Gallon
15 – Fuel Allocation and Miles-per-Gallon
Fuel Allocation
The CFN III system allows you to allocate a set amount of fuel to a customer or group of
customers with Proprietary Cards. The allocation number is a field on the Proprietary Card.
The CFN III uses allocation totalizers to track the amount used. When all of the allocated
amount has been used, the Site Controller denies access to the customer or customer group.
You can use a fuel allocation system to ration fuel or to ensure that only a designated amount
of fuel will be available to a specific customer group.
This chapter explains how to set up and maintain an allocation system.
Do not confuse this type of allocation with hourly allocation. Hourly allocation limits the
amount of fuel that may be accessed by a card within a specified time period. It applies to bank
cards as well as Proprietary Cards. Hourly allocation is set up in the Site Controller
configuration (refer to the Cumulative Limit Time parameter in the System parameters
chapter of MDE-4773 CFN III Configuration Manual for Windows XP for details).
How to Set Up an Allocation System
To set up an allocation system:
• Determine the allocation numbers you want to use, and the number of gallons (or liters) or
dollars you want to assign to each one. Refer to the allocation bulleted list below to help
you decide how you want to allocate fuel.
• Decide the length of the allocation numbers and the location of the allocation number
within the card account number (for more information, refer to “Proprietary Cards” on
page 13-1 and the Allocation Account Offset parameter in the System parameters
chapter of MDE-4773 CFN III Configuration Manual for Windows XP).
• Encode the allocation numbers on the cards in the location you decided. The allocation
numbers can be from 0 through 32,766. The allocation field must be the same length on all
cards.
• Configure the Site Controller for the maximum number of allocation numbers you will
use, the number of digits in allocation numbers, and the location of the allocation number
within the card account number. The CFN III system maintains allocation totalizers only
for allocation numbers currently defined. Configure for as many allocation numbers as
you will require; you can remove one temporarily if you are not currently using it.
However, do not configure for more than you plan to use since extra numbers needlessly
take up memory space.
• Use the commands in the rest of this chapter to maintain the amounts in the allocation
totalizers.