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Programming Function Blocks and Features
Video Recorder – User Manual 107
Peak Picking
This type monitors the input and determines a “peak” value reached during the specified time interval (in
minutes). The peak can be chosen to be a maximum, minimum, average, or standard deviation. At the
end of the time interval, the output CVn OV steps to the value of the peak and holds this value until the
end of the next time interval. If the Reset Input turns ON(1), the output is held and the time interval
restarts.
Table 4-17 describes the Peak Picking prompts. See Table 4-2 for additional prompts.
Table 4-17 Peak Picking Prompts
Prompt Range/Selections Definition
RANGE LOW
RANGE HIGH
OFF or number Enter the output's display limits. Output is not clamped or
flashed when it exceeds these limits.
INPUT OFF, analog parameter,
number
Input source whose peak is picked
RESET OFF, discrete parameter, 0,
1
Holds output and restarts time interval
ACTION NONE, MIN, MAX, AVG,
STDDEV
Type of peak pick. MIN selects the minimum, MAX selects
the maximum, AVG selects the mean average, STDDEV
selects the standard deviation over the time interval.
PERIOD MINUTES 0-999,999.9 Number of minutes in time interval