Using the Text Display Wizard to Configure the S7-200 CPU for Your Text Display (TD) Device
4.4 Configuring the Screens for the Text Display Device
Text Display (TD) User Manual
84 System Manual, 08/2008, A5E00765548-03
Tip
For the TD 200, TD 200C, and the TD400C, you can embed up to 6 variables per screen.
For the TD 100C, you can embed up to 1 variable per line (4 variables per screen).
● Data address:
– VB: Numeric String, Text String
– VW: Signed, Unsigned
– VD: Real, Signed, Unsigned
● Data Format: Signed, Unsigned, Real, Numeric String, or Text String
● Digits to the right of the decimal: Up to 7
Figure 4-19 Inserting PLC Data
The TD device rounds a real number to the specified decimal place. For example, if the real
number value is 123.456 and you select 2 digits to the right of the decimal, the TD 200
displays this value as: 123.46.
Tip
Refer to the SIMATIC S7-200 Programmable Controller System Manual for information
about the data types or for the memory addresses supported by the S7-200 CPU.
You can also allow the operator to modify the data stored at this memory location in the S7-
200 CPU.
● You can require the operator enter the TD password before editing the variable. (You
must have enabled password-protection for the TD device.)
● You can configure the cursor to jump to the variable field.
● You can define a symbolic name for the variable. You use the symbolic name to access
this data with your user program.
Clicking OK inserts the variable into the text of the screen. The Text Display wizard inserts a
block of 4 characters to show the presence of the variable. The value to be displayed for the
variable is right-justified at that location (anchored to the right-most character).
Data values are always right-justified to the right-most character of an embedded variable.
As a data value grows in magnitude, it utilizes more spaces to the left of the anchor point
and can overwrite the text characters. Always provide sufficient space between the end of
your text and the anchor point to allow for the expected range of the data value.
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