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20  BUILT-IN ANALOG FUNCTION
20.2  Analog Input/Output Specifications

Function to enable/disable A/D conversion

Function to enable or disable A/D conversion per channel.
The conversion process time can be reduced by disabling conversion for unused channels.

A/D conversion 
method

Sampling processing

Method of converting each analog input at END processing to generate the equivalent digital output.

Count average

Method of averaging the count of A/D conversion values and outputting these average values as the digital 
signal.

Time average

Method of averaging the time of A/D conversion values and outputting these average values as the digital 
signal.

Moving average

Method of averaging the analog input for a specified count measured at every END process, and outputting 
these average values as the digital signal.

Function to detect over-scale

Function to detect analog input values that are over a specified range.

Scaling function

Function that converts user-defined maximum and minimum digital values in accordance with a configured 
scale.

Shift function

Function that adds a specified amount to the A/D conversion value.
Fine adjustments during system startup can be easily performed.

Digital clipping function

Function that specifies the maximum A/D conversion value as 4000 and the minimum value as 0 when 
voltage is input that exceeds the input range.

Function to hold minimum and maximum values

Function that holds the minimum and maximum digital operation values.

Warning output function

Function to output warning when digital operation values exceed the specified range.

Function to enable/disable D/A conversion

Function to enable or disable D/A conversion.
When analog output is not used, the conversion process time can be reduced by disabling conversion.

Function to enable/disable D/A output

Specifies whether to output the D/A conversion value or output an offset value (HOLD setting value).

Scaling function

Function that converts user-defined maximum and minimum digital values in accordance with a configured 
scale.

Shift function

Function that adds a specified amount to the digital value.
Fine adjustments during system startup can be easily performed.

Function to HOLD/CLEAR the analog output

Sets the digital value before D/A conversion to the previous value or clears the value (0) depending on the 
operation status of the CPU module (RUN, STOP, and STOP error).

Analog test when the CPU module has stopped

Outputs a user-defined analog value by setting the output enable/disable flag to enabled when the CPU 
module is stopped, and changing the digital value.

Warning output function

Function to output warning when digital values exceed the specified range.