Model 574 Programmable Counting System (PCS)
204 - GSE Scale Systems
of these possibilities are described below for each
selection.
1 RECALL ROW:
a. <ENTER> key alone:
The first row which matches the current data in the
parameter which corresponds to the currently selected
column in the currently selected DATABASE is located.
Then all the other information in that row is copied into
the corresponding parameters. Note that the selected
column defaults to being the first column unless
otherwise specified. Thus if the first column were setup
to be ID 1 (parameter 21), and the data stored in ID 1
was "ABC", then the current DATABASE would be
searched, starting from the beginning, for a row in which
"ABC" was the data in the first column of that row.
Then the row which was found would be recalled. If a
matching row were not found, then an error message
would be displayed briefly. Also the error code is saved
so that a macro can test for the occurence of that error.
The recall operations are used when information is
needed regarding an item number, such as the
description, target weight, and/or quantity on hand for an
item. This particular operation is used when the look-up
data has already been entered into the corresponding
parameter of the unit.
b. An entry followed by the <ENTER> key:
Same as above except that the row which is attempted to
be located is the one whose data in the selected column
matches the entry that was made.This selection would be
used when the information to be searched has not
already been entered into the unit.
2 UPDATE ROW:
a. <ENTER> key alone:
The most recently accessed row in the current
DATABASE is updated with the corresponding data
from the parameters defined for that DATABASE. If the
last attempt to locate something in the current
DATABASE was not successful, then a new row is
created.This selection would most often be used after a
row of data has been recalled. Then after one or more of
the parameters defined as a column have been changed
(such as total amount on hand), the row in memory is to
be updated with the revised information.
b. An entry followed by the <ENTER> key:
The first row in the currently selected DATABASE
whose selected column matches the entered data is
located. Then this row is updated with the information of
the other parameters defined in that DATABASE. Note
that the selected column defaults to being the first
column unless otherwise specified. Thus if the first
column were setup to be ID 1 (parameter 21), and the
entry made was "ABC" <ENTER>, then the current
weigh
mode
Recll
row
Updte
row
Make
row
Print
dbase
Figure 29 Selection of Database Operations
1 2 3 4
SELEC
ID
SELECT
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