IBM 3270 Manual page 279

the counter associated with it becomes the overflow counter. Customizing
default boundaries are 1, 2, 5, and 10 seconds.
The total response time is also kept for each logical terminal. Each time a
counter (including the overflow counter) is incremented, the corresponding
transaction time is added to a total-time register for that device. By
dividing this total time by the total number of transactions, the average
response time may be calculated. This average response time is available
only through the host application; it cannot be displayed on a device
attached to the 327 4.
Boundary Value Examples (Sequence Number 128)
K-6
The following examples illustrate a correct boundary specification and some
of the incorrect specifications for which the operator error code is displayed
at the top center of the sequence number 128 panel.
1. A correct specification.
Bl - 00
B2 - 00
B3 - 00
B4 - 00
02
03
05
07
1
2
5
7
The first counter will be incremented for each response time of 2.1
seconds or less.
The second counter will be incremented.for each response time
exceeding 2.1 seconds but less than or equal to 3.2 seconds.
The third counter will be incremented for each response time exceeding
3.2 seconds but less than or equal to 5.5 seconds.
The fourth counter will be incremented for each response time
exceeding 5.5 seconds but less than or equal to 7. 7 seconds.
The fifth counter (the overflow counter, no boundary specified) will be
incremented for each response time exceeding 7. 7 seconds.
2. Boundary values not in ascending order.
Bl - 00
B2 - 00
B3 - 00
B4 - 00
02
05
04
06
0
7
5
8
Operator error code 64 is displayed.
3. A zero entry for field Bl is not allowed.
Bl - 00
B2 - 00
B3 - 00
B4 - 00
00
00
00
00
0
1
2
3
Operator error code 63 is displayed.
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