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02.20
The following chapters contain more details on the instance attributes of the Position Sensor Object.
Instance Attribute 3 - Position Value Unsigned
This instance attribute contains the absolute position of the sensor. A zero correction of the preset function is
taken into consideration in the displayed value. This means that if the value was modified by an executed
preset the effect of the preset is considered. The unit of the position value is increments or scanning steps or
counts.
Instance Attribute 11 - Position Sensor Type
This instance attribute can have one of the following values:
01 – Singleturn absolute encoder
02 – Multiturn absolute encoder
Instance Attribute 12 - Direction Counting Toggle
This instance attribute sets the rotating direction. It can be cw (clockwise) or ccw (counterclockwise). The
instance attribute can have one of the following values:
- If bit is not set the position value increases if the shaft is rotated clockwise (looking at the shaft).
- If bit is set the position value increases if the shaft is rotated counterclockwise (looking at the shaft).
Instance Attribute 14 - Scaling Function Control
This instance attribute is used to enable or disable the scaling of the position calculation. The instance
attribute can have one of the following values:
- If bit is not set scaling of the position value is disabled.
- If bit is set scaling of the position value is enabled.
Instance Attribute 16 - Measuring Units per Span
This instance attribute contains the desired singleturn resolution within the range from 1 to maximum
encoder resolution. The attribute defines the number of distinguishable steps per revolution of the sensor.
Values between 1 and the maximum resolution of the encoder per revolution (attribute 42) are admissible.
The following values are possible.
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