Rockwell Automation 2711 PANELBUILDER SOFTWARE USER MANUAL - Manual (Page 308)

The Objects
Chapter 10
10-43
Decimal Point—If Decimal Point is Enabled, the decimal point
can be in Fixed Position or PLC Controlled. There is no Decimal
Key Controlled option, because the displayed value always comes
from the PLC controller, never directly from the keypad. Other
than that, this option is the same as the Numeric Input option of
the same name (see above).
Use a PLC input address if you want to control the decimal
position from the terminal using other input objects. If you want
the PLC controller to dynamically change the decimal position,
assign a PLC output address for the decimal point. No PLC
address is needed if the decimal position is fixed.
With a decimal point but no polarity bit, this object can display 2
to 7 digits. The default is 5. (If you want more than the default,
you must configure more in the Move & Size menu.) The
maximum PLC value depends upon the data type and number of
bits assigned to the Displayed Value Address.
If you are displaying a number with a decimal point, the decimal
point occupies the space of one digit. For example, if you want to
display a fractional number and you specify eight digits, the
Numeric Data Display will show seven numeric digits, plus the
decimal point.
Address
Each Numeric Input Cursor Point has:
a Keypad Numeric Input Address: an associated PLC input address in
which the value is communicated to the PLC controller
a Displayed Value address: an associated PLC address whose value is
displayed
an optional Decimal Point Position Address: a PLC input or output
address, indicating the number of digits to the right of the decimal
an optional Enter Key Control Address
an optional Enter Key Handshake address
If no addresses are assigned to the optional parameters, the Numeric Input
Cursor Point will have no decimal point or Enter key control/handshake.
When you choose Address from the Object menu after adding a Numeric
Input Cursor Point to your display, the Address window opens. There are
two choices in the window, Numeric Input and Display.