Maximum Value/Minimum Value Hold Function - Mitsubishi MELSEC iQ-F User Manual

4.12

Maximum Value/Minimum Value Hold Function

Stores the maximum and minimum values of digital operation values in the buffer memory area for each channel.
Time average and count average are processed on the average processing cycle. The values of the sampling processing,
and moving average are updated on the sampling cycle.
Resetting the maximum value and the minimum value
■Resetting the maximum value
When 'CH1 Maximum value reset request' (Un\G473) turns on (1), 'CH1 Maximum value' (Un\G404) is updated with current
value, and 'CH1 Maximum value reset completion flag' (Un\G422) turns on (1).
■Resetting the minimum value
When 'CH1 Minimum value reset request' (Un\G474) turns on (1), 'CH1 Minimum value' (Un\G406) is updated with current
value, and 'CH1 Minimum value reset completion flag' (Un\G423) turns on (1).
■Resetting the maximum value and the minimum value
The following two types of average processing of the maximum value and minimum value are provided.
• Perform "Reset Maximum value" and "Reset Minimum value" respectively.
• 'CH1 Maximum value' (Un\G404) and 'CH1 Minimum value' (Un\G406) are updated
'Operating condition setting request' (Un\G70, b9) turns on (1). 'CH1 Maximum value reset completion flag' (Un\G422) and
'CH1 Minimum value reset completion flag' (Un\G423) are not ON (1).
*1 When "Conversion disabled" is set to 'CH1 Input type/Range setting' (Un\G598), 0 is stored in 'CH1 Maximum value' (Un\404) and 'CH1
Minimum value' (Un\406).
Values to be the maximum value and the minimum value
The maximum and minimum values of digital operation values are stored in the buffer memory.
When the average processing, digital clipping function, scaling function, and shift function are used, the maximum value and
minimum value of each function are stored.
4 FUNCTIONS
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4.12 Maximum Value/Minimum Value Hold Function
*1
with the current value when