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CHAPTER 8 FUNCTIONS
8
8.2 A/D Conversion Enable/Disable Function
8.2 A/D Conversion Enable/Disable Function
Sets whether to enable or disable A/D conversion for each channel.
By disabling A/D conversion for the channels you are not using, the conversion cycle can be reduced.
(1) Setting procedure
Set "A/D conversion enable/disable setting" to "0: Enable".
Project window [Intelligent Function Module] module name [Parameter]
8.3 A/D Conversion Method
Sets whether to perform sampling processing or averaging processing for each channel.
(1) Sampling processing
Sequentially performs A/D conversion on the analog input values and stores the digital output values to the buffer
memory.
The conversion cycle is calculated by "Conversion speed × Number of used channels".
Conversion can be enabled or disabled per channel, allowing you to reduce the conversion cycle by disabling A/D
conversion for the channels that are not used.
Conversion cycle in the following settings
• Number of used channels (where A/D conversion is enabled): CH1 to CH3 (three channels in total)
• Conversion speed: 80µs (middle speed)
80 × 3 = 240 (µs)
The conversion cycle is calculated to be 240(µs).
For details on conversion speed setting, refer to the following.
• Conversion Speed Setting ( Page 68, Section 8.5)
(2) Averaging processing
Performs averaging processing on the digital output values for each channel, and stores the average values to
the buffer memory.
There are three processes in averaging processing, as follows:
• Time average
• Count average
• Moving average
Ex.
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