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GLB.BALANCE
System Data Item Descriptions
Note: GLB.BALANCE is valid in Ispecs only. It is not implemented in LDA Run Time.
GLB.BALANCE is used in conjunction with Repeat.From Ispecs. The value of
GLB.BALANCE (if it is used in the logic of the Ispec) is displayed in the status line of the
screen, after each Repeat.From line has been transmitted.
Only ten characters (including the decimal point, two decimal digits, and sign) are
displayed in the status line. Truncation of the whole number part to six digits can thus
occur.
Maintenance of the value of GLB.BALANCE is your responsibility. Any combination of
data items whose sum over the transaction should balance to zero can be specified.
If GLB.BALANCE is not zero after the last Repeat.From line (that is, the balance is
non-zero after 999 is entered in LAST-LINE to end the transaction), an error message is
displayed. This system-generated error message does not inhibit the 999 line updating the
database, and thus your logic should include setting GLB.ERROR to five asterisks (*****) if
you do not want the 999 line to update the database.
You cannot start a new transaction until the value of GLB.BALANCE equals zero. (Note
that in Pre-Screen logic for Repeat.From Ispecs, LAST-LINE is always equal to 1, even
though Pre-screen logic is performed for each line.
In the following example, a Repeat.From Event includes one BATCHTOT item, and an
AMOUNT item for each Repeat.From line. If the sum of the AMOUNT values is not equal to
BATCHTOT, an error message is displayed and the database is not updated.
The associated logic is:
GLB.BALANCE is recovered automatically after an abnormal system shutdown.
See your LINC Generate Operations Guide which includes notes on the use of
GLB.BALANCE.
LENGTH = 16 EDIT = + DECIMALS = 4
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