Gasboy CFN III Config Mnl V3.4 - Manual (Page 44)

Table Sizes
Page 38 MDE-4316C CFN Series CFN III Configuration Manual for Windows NT® · April 2007
Changing Table Sizes
If you decide at some future time to change the size of any table, that table and all tables above
it in memory will be reconstructed when you reboot the system and the data they contain will
be lost.
Therefore, care should be used in deciding table sizes when setting up a new site, so they will
not need to be changed later.
If you must make changes, backup the data before making the change and rebooting, then
restore the data afterwards.
The Memory Tables
The following are the Site Controller tables that can be configured in the Table menu:
1 Transaction Table: Stores completed transaction entries until the transaction- begin pointer is
reset with RESET TRANSACTION or PURGE SITE.
You may configure the system (see 2 Cash Transaction Table) to store cash transactions in
addition to credit and club, or to store credit and club transactions only (which saves space).
The number of transaction entries in the transaction table should be determined by the site's
requirements-in particular, how busy the site is and how often the accumulated transactions
will be polled or otherwise off-loaded for processing. There should be enough transaction
entries to save the transaction information until it can be off-loaded, with a margin of safety.
Recall that when the transaction file is full, the Site Controller will not allow you to start any
new transactions.
For example, if you plan to have your host computer dial up the site each night for polling, you
would probably want to be able to hold at least two average day's worth of transactions, in
order to have a one-day margin of safety.
Each transaction entry takes 82 bytes. The minimum number of entries is 10.
2 Cash Transaction Table: Temporarily stores cash transactions when they are not stored
along with other transactions in the regular transaction table. Transactions are stored until they
can be logged.
Each entry in the cash transaction table takes 82 bytes. The maximum number of entries is
100.
There is an item in the system parameters menu (SYS_PAR) that determines whether cash
transactions are saved in the transaction table. Older cash transactions are overwritten as new
transactions are added to the table, so there should be enough room in the table to save
transactions long enough to log them.