Rockwell Automation 2711 PANELBUILDER SOFTWARE USER MANUAL - Manual (Page 269)

The Objects
Chapter 10
10-4
In this chapter, the objects are described in the order in which they appear
in the Add menu (and the secondary menus which pop out from it).
There are five different types of push buttons that function like their
physical counterparts on an industrial control panel.
IMPORTANT: Some PanelView objects contain buttons (such as the list
selectors, which have two or three associated buttons). These buttons are
configured as part of the object which contains them, not as independent
push buttons.
Momentary Normally Open (N/O) Push Button
The Momentary Normally Open Push Button controls the value at the
Button Control Address, a PLC input address. Normally, this bit is 0. When
the button is pressed, the bit is set to 1. When you release the button, the
bit is reset to 0.
You can use a Momentary Normally Open Push Button to initiate a PLC
controlled process or action.
To ensure that the PLC controller doesn’t miss a rapid button-press
between I/O scans, you can select the Minimum Push Button On Time
under Options in the File Menu. This “holds the button down” for a
minimum preset time.
In addition to the Button Control Address, this object has an Indicator State
Address which controls the display state of the object. Two states are
possible, 0 or 1. You can configure the button in a number of ways:
if you assign just the Button Control Address and assign text and
attributes to state 0, the border on the button will highlight when you
press the button. The button text itself will remain unchanged
if you assign the same PLC input address to the Button Control Address
and Indicator State Address, and assign different text and attributes to
state 0 and 1, the button will immediately change to state 1 when you
press it, and back to state 0 when you release it
to provide a visual handshake with the PLC controller, assign a PLC
input address to the Button Control Address and a PLC output address
to the Indicator State Address. Program the PLC controller to turn the
Indicator State bit on when the Button Control bit is on, and the button
will change to state 1
Push Buttons