Rockwell Automation FactoryTalk View Machine Edition Users Guide - Manual (Page 410)

F ACTORY T ALK V IEW M ACHINE E DITION U SER ’ S G UIDE
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Buttons described later in the chapter
Information about setting up these buttons is described later in the chapter:
How to use push buttons
Push buttons start or stop processes or actions by changing tag values.
You can use different kinds of push buttons, depending on what kind of machinery you are
running or process you are controlling:
Momentary push buttons change a tag to one value when the button is pressed, and
another value when the button is released. The machine is on only while the button is held
down. When the button is released, the machine turns off. Momentary push buttons are
useful for jogging a motor, and they can be set up to start and stop a machine or process.
Maintained push buttons toggle between two values. This type of button is useful for
changing a setting within a machine or process, but not for starting the machine or
process. For example, use the Maintained push button for changing modes, such as Auto
to Manual, or Metric to Imperial.
Latched push buttons latch in the on position, and must be unlatched by another button
or process to return to the off position. This type of button is useful for starting a machine
or process.
Multistate push buttons allow an operator to cycle through multiple options
consecutively, using a single button. The current state of a process or operation is shown
on the button by a different color, caption, or image for each state.
Close display Multistate push
Goto display Numeric input enable
Interlocked push Print alarm history
Latched push Print alarm status
Macro Ramp
Maintained push String Input Enable
Momentary push
Never use push buttons for emergency stops. Emergency stop buttons must always be hard-
wired.