Intermec DCS 300, Руководство пользователя, Страница: 144 / 452

DCS 300 User’s Manual
5-10
Field Description Value Default
Hot Standby
Timeout The number of seconds the DCS 300 waits
after delivering a transaction to the 9161
controller to receive an acknowledgment for
the transaction.
If it does not receive an acknowledgment, the
DCS 300 writes all transactions for the 9161
to a Hot Standby file. The 9161 receives its
transactions from this file either when it sends
an acknowledgment to the most recently
delivered transaction or when it sends a
system transaction.
Before the 9161 becomes interactive again, it
receives all the transactions, from oldest to
newest, that are in its Hot Standby file.
1 to 9999 40
Integrity mode This mode determines the amount of
transaction verification the DCS 300
performs.
In Faster mode, the DCS 300 acknowledges
the transaction as soon as it receives the
transaction from the 9161 controller.
In Safer mode, the DCS 300 acknowledges
the transaction only after it is stored in a Hot
Standby file. Transaction throughput is slower
because the DCS 300 cannot accept another
transaction from the 9161 until it verifies the
previous one.
Faster, Safer Faster
Transactions held in
volatile memory The number of transactions the DCS 300
keeps in volatile RAM before it begins to
write them to a Hot Standby file.
Choose None if you want the transaction
always written to the file.
Choose Unlimited if you do not want the
transaction written to the file unless the time
you set for the Hot Standby timeout expires.
Choose Maximum and enter a maximum
number of transactions. When the DCS 300
has this number of transactions in RAM, it
writes them to a file.
None, Unlimited,
Maximum Maximum 50
Multi-Drop Enabled The Multi-Drop lines (up to four) that the
9161-02 controller supports. The 9161-01
controller does not support this feature. m, n, o, p p