Rockwell Automation 2711E-ND1 Reference Manual PanelBuilder 1400e - Manual (Page 105)

99 Push Buttons
Publication 2711E-6.15 – November 1998
This object also has an Indicator State control, used to control the
display state of the object. The PanelView terminal evaluates the
control and compares the result to the state values to determine
which state to display.
Note: If the Indicator State value does not match any of the defined
state values, an error state occurs and the button displays state 1
without labels. An error state also occurs if the Button Control is not
assigned. In this case also, the button displays state 1 without labels.
Important: The Normally Open Momentary Push Button does not
retain its value when power is switched off and on
again, after screen changes, or when the terminal is
switched to Configuration mode and then back to Run
mode. The Button Control is reset to the initial state
value.
!
ATTENTION: If a communication error occurs, the
control value remains in its last state and the Button
Control will not reset. For Remote I/O applications, the
rack fault bit should be monitored when these buttons
are used. For DH+ and ControlNet applications only,
use the active node bits in the status file. See your
controller documentation for more information.
!
ATTENTION: You can use this button as a stop
button but not for emergency stops. Emergency stop
buttons must be hard-wired.
Configuring the Normally Open Momentary (N/O) Button
Configure the 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 a Normally Open Momentary Push Button.
Function Key
(Keypad only) Specify which function key the operator must press to activate
this button.
Number of States Only two states are possible. The value of state 0 is fixed at 0;
the value of state 1 is fixed at 1. You cannot change the number
of states or their values.
Initial State The button’s initial state is fixed at 0. You cannot edit this value.
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