Rockwell Automation 2711E-ND1 PanelBuilder 1400E Reference Manual User Manual

Page 56

Numerics

Publication 2711E-820 – January 1998

Tip: If you want immediate indication of the value you’re sending
to the PLC, use the button’s Numeric Display component instead of a
Numeric Data Display. This is especially important for DH+ and
ControlNet applications when Auto-Repeat is enabled. Since the
DH+ and ControlNet network response can be slow, you don’t want
to overshoot the target value when the button is auto-repeating. The
Numeric Display component shows the last value sent to the PLC.
Use a separate Numeric Data Display object if you want to feed back
the value you’ve written.

Note: When the button is released, the Numeric Display component
will be aware of any external changes to the Button Control and
update itself.

At runtime, if the numeric value cannot be displayed—for example,
if the field is too small—the Numeric Display component is filled
with asterisks (***).

Important:

In Remote I/O applications, the PanelView terminal can
retain the current Button Control value, even after the
terminal is turned off. Depending on how the
Application Startup operation is defined, the retained
value (last state) or initial value (default) is sent to the
PLC when power is re-applied.

For details on configuring Application Startup
operation, see “Application Startup” in Chapter 5 in the
PanelView 1000e, 1200e, and 1400e Operator
Terminals User Manual.

ATTENTION: A control function should require
operator confirmation. Do not use this object on its
own to initiate a control function. Also, a retained
value could be used when the terminal is powered back
on, which could result in a control function starting
without the operator’s knowledge.

Configuring the Increment Value Button

Configure the Increment Value Button according to this table:

Field

Meaning

Name

Assign a name, up to 15 characters, to document the object for
printed reports. This increases the application’s size by 1 byte
per character.

Button Type

Specify Increment Value Button.

Function Key
(Keypad only)

Specify which function key the operator must press to activate
this button.

RIO