Siemens S7-200 - Accessing the Menus and Screens

Operating Your Text Display (TD) Device
5.3 Accessing the Menus and Screens
Text Display (TD) User Manual
106 System Manual, 08/2008, A5E00765548-03
Using the TD Device to Edit Variables in the S7-200 CPU
A screen or alarm message can contain an embedded variable field that allows an operator
to respond by changing the value of the variable. The operator uses the keypad to edit
variables:
● Selecting the Screen: The operator uses the UP or DOWN arrows to display the screen
that contains the variable to be edited. (From a menu, the operator presses ENTER to
access the group of screens.)
● Navigating to the variable: The operator presses ENTER to navigate to the first editable
variable.
● Changing the value of the variable: Pressing the UP arrow increments (increases) the
value, and pressing the DOWN arrow decrements (decreases) the value. (Pressing and
holding the UP or DOWN arrow accelerates the operation.) Pressing both SHIFT+ENTER
resets the variable to 0. Pressing ESC aborts the edit.
● Press LEFT or RIGHT to move the cursor position within the variable. The TD 200 uses
SHIFT+UP to move left and SHIFT+DOWN to move right.
● Updating the data in the S7-200 CPU: Pressing ENTER writes the updated value for the
variable to the S7-200 CPU and moves the cursor to the next editable variable on the
screen.
For more information about editing variables, see the section Editing a Variable that is
Embedded in an Alarm or a Screen in this chapter.
5.3 Accessing the Menus and Screens
Accessing the Menus and Screens
When you configured the TD device (as described in Chapter 4), you created the screens
and alarms for the TD device. If you configured both alarms and screens, you also
designated which type of message (screens or the alarms) would be the default display
mode for the TD device. After power-up or after a period of inactivity, the TD device returns
to the default display mode.
In addition to the screens and alarms that you configured, the TD device provides standard
functions that the operator can access from system-level and pre-defined menus. From the
default display mode, the operator uses ESC to access the menu hierarchy. The operator
then presses ENTER to select the menu item for accessing the other menus or functions.
Figure 5-5 and Figure 5-6 show the hierarchy of menus for these functions for the TD
devices. (The menus show all of the functions that are available on the TD device. For some
of the functions to be listed on the menu, you must have enabled the function during
configuration. See Chapter 4.)