Gasboy TopKAT Operation Manual - Manual (Page 64)

Transaction File Setup - Keypad Config Trans File
Page 56 MDE-4338A TopKAT™ Fuel Management System Operation Manual · February 2009
Config Trans File
Move Trans Pointer
The TopKAT transaction file uses a circular memory storage technique that keeps accessible
the last several hundred (at least 1650) transactions. There are two pointers in the transaction
file: a safe pointer and a next transaction pointer.
• The safe pointer marks the beginning of the file location. The safe pointer remains fixed
unless you move it using the Move Trans Pointer command.
• The next transaction pointer marks the next transaction to be assigned location. The next
transaction pointer moves ahead each time a new transaction is received.
When you do a Print Transactions terminal command, your transaction printout begins at the
safe pointer and ends with the last transaction before the next transaction pointer.
When the next transaction pointer reaches the safe pointer, and memory-full protection is
enabled, the MEMORY FULL message displays and no more transactions can be stored or
created. If memory-full protection is disabled, the safe pointer bumps up one transaction slot at
a time as each new transaction is received thus overwriting existing transactions in memory.
To ease a memory-full condition, you can use the Move Trans Pointer command to move the
safe pointer forward towards the next transaction pointer thus freeing up transaction storage
space for new transactions. Before doing this, you need to poll your transactions. You can poll
using the print transactions PR TR command. Transactions are read from the safe pointer to
the next transaction pointer. Then use the MO PO command to relocate the pointer and make
room for additional transactions. You can also poll using a Gasboy PC package. Transactions
are copied to a file on the PC and the safe pointer is automatically moved to the next
transaction pointer to free up memory for more transaction storage.
The locations of the transaction file pointers are shown in the System Configuration report.
The following locations are shown: Oldest=oldest transaction still in memory; Safe=beginning
of the file location; Last=last transaction in memory; Next=next transaction to be assigned.
Load Trans Number
Use Load Trans Number to load the starting or next transaction number. When you first start
up your system, this number is usually set to 0001 so the first transaction number will be 0001;
however, it can be set to any number you wish.
Clear Trans in Prog
Use Clear Trans in Prog to clear any transactions in progress in the event of communications
problems between the TopKAT and the 9800 or satellites (when used). This command should
be used with care as transactions may be lost. Contact Gasboy Technical Service before
attempting this command. This command can be used at the master and satellite units.
Clear Trans File
Use Clear Trans File to clear all transactions from memory and reset the transaction pointer
and the safe pointer to the physical beginning of the file. This command is typically used only
at startup.