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338 U41117-J-Z125-7-76
Function bar XTCC
8.3.4 Autoscan
Each Autoscan cycle consists of a data transfer phase, a display phase, and the Autoscan
delay. The Autoscan delay is the interval between the end of the display phase and the
beginning of the subsequent data transfer phase.
The color of the “Autoscan” text in the status bar in the bottom right-hand corner of the
XTCC window shows the current status of this periodic transfer of information. The colors
have the following meaning:
green released
yellow active
red stopped temporarily or by the user
white blocked (simu mode)
Each time a main menu is opened, an information window is output, or a function menu is
called for an object, the Autoscan cycle is temporarily interrupted, indicated by the red
flashing “Autoscan” text. It is continued automatically after the menu or window is closed.
The Autoscan cycle is not interrupted on opening an information window if “Move Pointer
for Info” mode was selected in the “Options” menu. Text in yellow indicates that a new data
record is currently being received and edited by InfoBroker.
Autoscan delay is normally defined automatically but can also be set manually.
The “Autoscan” menu contains the following functions:
8.3.4.1 Start
Starts the Autoscan process manually. This function is available only if Autoscan is currently
stopped.
8.3.4.2 Stop
Stops the Autoscan process manually so that the status of the displayed objects is no longer
updated. This function is available only if Autoscan has been started.
Before the window size or position of the configuration display on the screen is
changed it is recommended that the Autoscan process first be stopped manually.
Otherwise, the ongoing process of updating of the window contents will cause the
window to jump back to its original position. The reason for this is that the appli-
cation (XTCC) does not know about these modifications (made by the Window
Manager), and always uses the most recently stored parameters to generate the
display.
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