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8   Analog I/O Slave Unit
GX-series EtherCAT Slave Unit User’s Manual
8-5  Function of the Analog Output Slave Unit
8
8-5-1  DA Conversion Available Point Setting
8-5 Function of the Analog Output Slave 
Unit
An Analog Output Slave Unit has the following convenient functions, in addition to the output signal 
processing.
 Purpose
This function sets to skip processing unused points, and enhances the speed of refresh cycles of 
analog output.
 Details of functions
Normally in this Unit, the values for two input points are converted in sequence. The setting can be 
changed, so that unused points are not converted.
By reducing the number of conversion points, the conversion cycle speed is increased.
Whether DA conversion is enabled or disabled is settable for each point. (Default setting: Enable all 
channels)
Notes  Regardless of this setting, an Analog Output Slave Unit uses two points of data allocation area.
Set by SDO communications.
The target index is 3200 hex.
For the set values, refer to the information in the corresponding index of "Appendix A-1 Object 
Dictionary"
 in Page A - 46.
The table below shows the analog conversion time by the number of DA conversion available points.
Precautions for Correct Use
Do not disable all of the channels.
8-5-1 DA Conversion Available Point Setting
Overview of functions
Setting method
Enabled 
channel
Conversion time [μs]
1 point 500
2 points 1000