Triton 9670 Operation Manual - Manual (Page 182)

S
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5 - M
ANAGEMENT
F
UNCTIONS
5-135
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RITON
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YSTEMS
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M ULTI -C ASSETTE C ASH D ISPENSER O PERATION M ANUAL M ODELS 9650/9670
Once the Heartbeat Message call feature is enabled at the terminal, an internal timer will be ini-
tialized to the number of minutes set in the DELAY PERIOD parameter at system power-up and
after a reset. This timer is restarted each time a call is made to the host. A call to the host is de-
fined as any transaction, including financial, balancing and configuration that actually communi-
cates with the host to the point that the Terminal ID is recognized. A customer transaction that is
declined will reset the timer, while a call that fails because the host phone number was busy
would not.
It is important to remember that as long as transactions are being done on the terminal on a regu-
lar basis, Heartbeat Message calls will not be made. The sole purpose of these calls is to let the
host know that the terminal is OK when it is NOT performing regular transactions.
Because the primary purpose of the Heartbeat Message call is to let the host know everything is
all right, a Heartbeat Message call that DOES NOT succeed for any reason is not retried. If the
call does fail, the interval timer will be reset and the terminal will remain in service.
While the concept of the Heartbeat Message call is simple, interpreting the absence of an ex-
pected call must be explained. Listed below are reasons why Heartbeat Message calls will not
be received at the host either when expected or at all.
Feature Not Turned On
Obviously, if the feature in not enabled, no Heartbeat Message calls will be made.
Terminal is Doing Transactions
If the terminal does at least one regular customer transaction or balancing transaction before the
interval timer, no Heartbeat Message call will be made.
Terminal is in Management Function Mode
Heartbeat Message calls are suspended while the terminal is in the Management mode, although
the interval timer continues to run. If the timer expires while the terminal is in this mode, the
call will be delayed until the terminal returns to the normal service mode.
Terminal is Out of Service
When the terminal goes out of service, one Heartbeat Message call is made. After that call, all
further calls are suspended until it is returned to normal service.