Change displays, Control display changes remotely, Remote display changes and security – Rockwell Automation FactoryTalk View Machine Edition Users Guide User Manual

Page 114: Change displays -4

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When the Remote Date and Time connection value changes to a new non-zero value, the
terminal resets its internal time and date to the time and date read from the individual
remote date and time connections.

The date and time are updated at the rate specified in the Maximum update rate box, but
changes are not made until the Remote Date and Time connection changes to a new non-
zero value.

Change displays

Use these global connections in the Display tab of the Global Connections editor to
monitor and control display changes:

Replace Display Number—notifies the data source of the number of the Replace
display that’s currently open.

Remote Display Number—allows the data source to change the display on the run-
time computer.

Control display changes remotely

To control display changes remotely, you can set up the data source to open and close
graphic displays.

The data source can open Replace and On Top displays, and close On Top displays,
remotely. To use remote display changes, assign a unique display number to each Replace
and On Top display that you want to change remotely.

To open a Replace display, or an On Top display remotely, assign a tag or expression to
the Remote Display Number connection. When the data source sends a display’s number
to the connection, the specified display opens. When the connection’s value is 0, the
operator has control of display changes (using display navigation objects).

To close one or all On Top displays, assign a tag or expression to the Close an On Top
Display or the Close All On Top Displays connection, or both. When the source sends a
non-zero value to one of these connections, one or all open On Top displays will close.
The operator can control On Top display changes no matter what the connection values
for the Close an On Top Display or the Close All On Top Displays connections are.

Note: On Top displays whose Cannot Be Replaced setting is true cannot be closed using
these connections.

For information about assigning numbers to displays, see Help.

Remote display changes and security

If you set up the data source to open graphic displays remotely, remote display changes
occur whether or not the logged-in user has security access to a given display.

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