S5-95F Error Diagnosis and Elimination
15.7 Evaluating Cycle Time Statistics
The S5-95F collects statistical data on cycle times. This statistical data is located in internal RAM in
the address space extending from 8004
H
to 80C3
H
. You can evaluate the cycle time statistic by
invoking the programmer function OUTPUT ADDRESS.
Functionality
The S5-95F computes the time needed for each cycle and assigns it to an interval. A counter is
then assigned to each interval. The S5-95F increments a counter by one whenever the cycle time
being measured belongs to that counter's interval.
The statistics function is located in internal RAM and comprises
• 95 counters of 2 bytes each (see Table 15-4) and
• a control byte
Table 15-4. Memory Allocation for the Cycle Time Statistics
Address Description
8004
H
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8005
H
8006
H
Counter 1, low-order byte
8007
H
Counter 1, high-order byte
.
.
.
Control byte
For cycles with a time < 60 ms
8008
H
8009
H
Counter 2, low-order byte
Counter 2, high-order byte
For cycles with
60 ms cycle time < 70 ms
80C2
H
..
..
..
Counter 95, low-order byte For cycles with
990 ms cycle time < 1000 ms
Unassigned
80C3
H
Counter 95, high-order byte
Contents of the Control Byte
Control Byte (address 8004
H
)
7 6 5 4 3 2 1 0
0: Irrelevant
1: Erase statistics data
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0: Start recording statistics data
1: Stop recording statistics data
EWA 4NEB 812 6210-02
15-21
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