Rockwell Automation GMLC Reference Manual - Manual (Page 414)

Publication GMLC-5.2 - November 1999
Auto RIO Update 377
Auto BCD Numeric Format
When you select Auto from the first Numeric Format menu and BCD
from the second, the lower four digits of the 7-digit BCD value of the
output data expression are written to the lower numbered I/O group
defined for the selected formatted data output group. The remaining three
digits of the value, the number of decimal digits (automatically
determined by the motion controller to maintain the maximum number of
significant digits in the displayed value), and the sign of the value are
written to the next higher numbered I/O Group. This is the data format
used by the PanelView. The actual number of decimal digits changes from
update to update as the value of the Output Data expression changes. This
gives the highest precision over a large range of values.
To continuously send the actual position of Axis 0 to a PanelView using a
previously defined formatted data output group (Axis_0_Position), enter
Actual_Position_AXIS0 in the Output Data field and select
Axis_0_Position from the Send to RIO Data Group list.