Rockwell Automation 2711E-ND1 Reference Manual PanelBuilder 1400e - Manual (Page 34)

24 Control Selectors
Publication 2711E-6.15 – November 1998
Note: The Control List Selector without Enter Key recognizes when
the Selector Control value is changed externally. For example, if the
tag assigned to the Selector Control is also assigned to another
object, and this object writes a new value in the tag, the Control List
Selector indicates the new value. If the Selector Control value does
not match any of the list’s state values, the highlight bar is removed.
If the Selector Control cannot accommodate the state value, an error
message is displayed, and the PLC value is not changed. The
operator must clear the fault before continuing.
Important: For Remote I/O applications, and ControlNet Scheduled
tags, the PanelView terminal can retain the current
value for the Control List Selector without Enter Key,
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 reapplied.
For DH+ applications, ControlNet Unscheduled tags,
and Modbus applications, the current value cannot be
retained. Depending on how the Application Startup
operation is defined, the initial value or nothing
(default) is sent to the PLC when power is applied.
For details on configuring Application Startup
operation, see “Application Startup” in Chapter 5 of 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.
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