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Index View
An index is a complete motion sequence that moves the motor a specific incremental distance or to an absolute position. The
index is initiated with the Index.#.Initiate destination or from a program.
Figure 104:
Index View
Index Number
The Index Number parameter selects the index number with a scroll box.
Index Name
The User can specify an Index name of up to 12 alphanumeric characters. This allows assigning a descriptive name to each
index indicating different machine operations.
Index Type
Select the index type from Incremental, Absolute, Correction (FM-4E only), Posn Track Cont. (FM-4E only), Posn Track
Once (FM-4E only), Registration, Rotary Plus, or Rotary Minus. Click the down arrow on the parameter list box to select the
desired type of Index profiles, as follows:
Incremental Indexes run a specified distance from the current position.
Absolute Indexes move to an exact position with respect to the home reference point. The absolute index could run in either
a clockwise (CW) or counterclockwise (CCW) direction dependent on the current position when it is initiated.
FM-4E Only - Correction Indexes are used to follow a dynamic fieldbus or analog value that changes the index distance of
the index prior to and during the index motion. Correction indexes use incremental distance values. The index distance value
can be updated via Fieldbus, by simply writing to the index distance parameter. If the analog input's Destination Variable is
set to an Index Distance parameter, the index's distance value will be updated by the Analog to Position scaling found in the
Analog Input view. See Analog Input view.
FM-4E Only - Posn Tracker indexes are used to follow a dynamic fieldbus or analog value that changes the end point of the
index prior to and during the index motion. Position Tracker indexes use absolute position values. The position value can be
Setting Up Parameters
113
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