Rockwell Automation 2711E-ND1 Reference Manual PanelBuilder 1400e - Manual (Page 76)

70 Numerics
Publication 2711E-6.15 – November 1998
Field Meaning
Decimal Point Specify whether the operator can enter a number with decimal
points, and how the decimal points appear in the scratchpad.
Disabled—the operator can’t enter a decimal point.
Implicit—allows the operator to enter the number and decimal
point. Assign an analog tag with Floating Point data type.
Fixed Position—you specify where the decimal point is
positioned in the scratchpad display. See Digits after Decimal
Point, next.
PLC Controlled—allows the PLC to determine the number of
digits that appear after the decimal point by specifying a value
in the tag for the Decimal Point Position control.
The PLC Controlled decimal position can display 1 to 15
decimal digits. If the value returned by the Decimal Point
Position control is outside this range, the decimal point
character is replaced by a single asterisk (*).
Decimal Key Controlled—allows the operator to enter the
number and decimal point. The terminal calculates the decimal
point position and writes this value to the Decimal Point Position
control.
See “Using the Decimal Point” later in this chapter for more
information.
Digits after Decimal
Point If you specify the decimal point as Fixed Position, enter the
number of digits that will appear after the decimal point. The
maximum is 15.
Function Key Specify which function key the operator must press to call up
the scratchpad.
Control The Numeric Keypad Enable Button uses the following controls:
Keypad Numeric Input identifies the PLC location to which the
terminal writes the value that the operator enters in the
scratchpad. You can assign only a tag to this control.
Define this control for all Decimal Point options.
Optional Keypad Write Exprn performs a mathematical
calculation or logical operation on the value the operator enters
at the PanelView terminal, then sends the result to the Keypad
Numeric Input control. Use of this control is optional. You can
assign only an expression to this control. See “Using Write
Expressions” later in this chapter for information about
assigning this control.
Decimal Point Position determines or indicates the position of
the decimal point.
If you specified the Decimal Point field as PLC Controlled, you
can assign a tag or expression to this control.
If you specified the Decimal Point field as Decimal Key
Controlled, you can assign only a tag.
Enter Key Control and Enter Key Handshake are used
together to provide handshaking between the PLC and the
terminal. See “Enter Key Handshake Operation” later in this
chapter for more information. You can assign only a tag to the
Enter Key Control. You can assign a tag or expression to the
Enter Key Handshake control.
Important: All function keys are disabled while the terminal is
waiting for handshake acknowledgement.