Mitsubishi Electric MELSEC iQ-F FX5 User Manual page 344

Averaging processing
Averaging processing is performed for analog input value or temperature input value for each channel. Averaged values are
stored as digital output values and digital operation values.
The following three types of averaging processing are provided.
• Time average
• Count average
• Moving average
■Time average
A multiple input module executes the conversion for set time and averages the total value excluding the maximum value and
the minimum value. The averaged value is stored in the digital output value and the digital operation value.
• Setting time
Set a value that satisfies the following condition.
Setting time of A/D conversion = Number of A/D conversion enabled channels  Conversion speed (1 ms)  Set number of
times
Setting time of temperature conversion = Number of temperature conversion enabled channels  Conversion speed (40 ms) 
Set number of times
• Processing times
The number of processing times within the set time varies depending on the number of channels where the conversion is
enabled.
Number of processing times
*1 Values after the decimal point are omitted.
Ex.
The following table shows the processing times with the setting below.
Item
Input type
Number of channels where temperature conversion
is enabled
Setting time
20 ms
= 5 times
(4 ch × 1 ms)
Conversion is processed 5 times and the mean value is output.
• The valid lower limit setting value for the time average is calculated by the formula "Minimum processing
times (4 times)  Number of conversion enabled channels  Conversion speed". When the number of
processing times is less than 4 due to the set time, a time average setting range error (error code: 192H)
occurs. 0 is stored in the 'CH1 digital output value' (Un\G400) and 'CH1 digital operation value' (Un\G402).
• Because the time average requires a sum of at least two counts excluding the maximum and minimum
values, the set number of times should be four or more.
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3.4 Functions
*1
=
(Number of conversion enabled channels × Conversion speed)
Setting
Voltage
Four channels (CH1 to CH4)
20 ms
Setting time