5–42 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
DEVICE CHAPTER 5: DEVICE, SYSTEM, INPUT AND OUTPUT SETPOINTS
CHANNEL 1(16) MODE
Default: Sample
Range: Sample, Min, Max, Mean
This setpoint defines the type of sample to be logged in the data logger record with
respect to the selected rate, i.e the time interval selected under the setpoint “Rate”.
While enabled the Data Logger executes every protection pass and each of the four
modes —Sample, Max, Min or Mean. The flexanalog values are updated at protection-
pass rate:
In “Sample” mode the data logger records the flexanalog value updated in the first
protection-pass from the time interval selected under setpoint “Rate”.
In “Max” mode the data logger records the maximum protection pass value of the
selected flexanalog parameter from all protection pass values from the time interval
selected under setpoint “Rate”.
In “Min” mode the data logger records the minimum protection pass value of the
selected flexanalog parameter from all protection pass values from the time interval
selected under setpoint “Rate”.
In “Mean” mode, the data logger records the average value among all the values at
protection-pass rate, from the time interval selected under setpoint “Rate”.
The mean (average) is calculated simply using the well known ratio between the sum of
all the values and their number over the time interval.
Figure 5-8: Data Logger Storage Capacity
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