Product specifications

FILE ALLOCATION
Sharp Electronics Corporation
Save Files (IRC – Master and Satellite): These are memory areas that hold transaction
sales data to be retrieved by the Master in registers in an Inter-Register Communications
(IRC) System when a Consolidation Report is performed. If SAVE Files are used, they
must be present in all the registers in the IRC System. SAVE Files cannot be entered
through normal (FILE Allocation) programming, if they have been programmed as “enabled”
in Service Job Code 924 programming, the file memory will automatically be created when
the IRC SETTING is executed. These files are always opened to the same size as the
corresponding Primary File. If the number of records in the Primary File is changed, the
number of records in the SAVE Files will automatically change to the same size.
Receive Files (IRC – Master/Backup Master Only): These files are automatically opened
in the “Master register” in an IRC System when the IRC SETTING job is executed. They
provide a buffer area for transaction sales data retrieved from the Satellite(s) when a
Consolidation Report is performed. The size (number of records) of the Receive Files is
always opened to the same size as the corresponding Primary File in the Master. To insure
there will be room for all the data from the Satellite(s), the Satellite’s memory allocation
MUST match the Master’s Primary Files.
Consolidation Files (IRC – Master/Backup Master Only): Data received by the Master
from the Satellite(s) in its Receive Files is totaled in the Master’s Consolidation Files to
provide store-wide reports. As with the other IRC Files, these files are opened when the
IRC SETTING job is executed at the Master/Backup Master (based on SRV Job#920-B) to
the same size as the corresponding Primary Files.
4. Calculating Memory Usage
Calculating the memory needed for specific applications is very important. This information
is needed to know what RAM options are required. On the other hand, given a set amount
of RAM, it enables you to determine the maximum number of functions (such as PLU items
and Guest Check) that can be implemented.
The general formula for calculating the memory required for any particular file requires is:
TN = NR (x) NB (x) RL
Where:
TN = Total Number of bytes.
NR = Number of Records
NB = Number of Blocks
RL = Record Length
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