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TD 200 Keyboard Features
The TD 200 keyboard has a total of nine keys. Table 1-2 describes the five predefined,
context-sensitive command keys.
Table 1-2
Command Keys
ENTER
ESC
UP ARROW
DOWN ARROW
SHIFT
Table 1-3 describes the four user-defined function keys (F1, F2, F3, F4). You define these
four function keys in your S7-200 CPU program. Pressing a function key sets an M bit. Your
program can use this bit to trigger a specific action.
Table 1-3
Function Keys
F1
F2
F3
F4
SIMATIC TD 200 Operator Interface
C79000-G7076-C205-04
Description of Command Keys
Use this key to write new data and to acknowledge a message(s).
Use this key to toggle between Display Message mode and Menu mode or to
abort an edit.
The UP arrow increments data and scrolls the cursor to the next higher priority
message.
The DOWN arrow decrements data and scrolls the cursor to the next lower
priority message.
The SHIFT key modulates the value of all of the function keys. See Table 1-3
for examples. A flashing "S" is displayed in the lower right of the TD 200
display when you press the SHIFT key.
Description of Function Keys
Function key F1 sets the Mx.0 bit.
If you press the SHIFT key along with, or prior to, pressing the F1 key, F1 sets
the Mx.4 bit.
Function key F2 sets the Mx.1 bit.
If you press the SHIFT key along with, or prior to, pressing the F2 key, F2 sets
the Mx.5 bit.
Function key F3 sets the Mx.2 bit.
If you press the SHIFT key along with, or prior to, pressing the F3 key, F3 sets
the Mx.6 bit.
Function key F4 sets the Mx.3 bit.
If you press the SHIFT key along with, or prior to, pressing the F4 key, F4 sets
the Mx.7 bit.
Product Overview and Installation
Description
Description
1-3
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