Table of Contents
Advertisement
Configuring the TD 200
Figure 2-11 shows the message dialog box after you have formatted the first embedded data
value. The grayed fields show the characters used by the format information (always two)
and the data value (two for word values).
The second data value in the message is a real number. Real numbers require four
characters plus two characters for format information. Move the cursor to position 35 and
click on "Embedded Data..." to enter the format information for the second data value.
TD 200 Configuration Wizard
Note: Grayed fields
are place holders for
embedded data
values.
Figure 2-11 Wizard: Embedded Data Value Place Holder in Message
This variable displays as a real number which requires a double word data format. After you
select "Double Word," the Display Format area allows selection of a real (floating point)
number format. For real numbers, the field entitled Digits to the right of the decimal defines
the fixed decimal location of the real number in the TD 200 display. The TD 200 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.
In this example, this variable should be editable by the user. Select the check box that allows
the user to edit the data. Once the edit-allowed selection has been made, two new fields
appear in the Embedded Data dialog box.
The Edit Notification Bit field specifies the location of a bit which the TD 200 sets to 1
whenever the data value is edited and written to the CPU. The CPU program uses the
edit-notification bit to recognize when an editable data value has been changed. The
program can then read and make use of the edited value. The user program is responsible
for resetting this bit to 0.
The password-protected check box asks you if you wish to require a password for editing
this data value. If checked, the operator must enter a password before being allowed to edit
the data value. You selected the password at the beginning of the configuration process (see
Figure 2-3); it is shown in the Password for Edit field.
2-12
You have asked to configure 3 message(s). Define your message by
placing your highest priority message first.
Message 2 of 3
5
P R E V
.
S E T P O I
25
N E W
S E T P O I
Message beginning address:
INS
Embedded Data...
<Previous Message
10
15
N T
:
30
35
N T
:
VB80
Message enabled bit:
V12.6
Next Message >
< Prev
Cancel
Finish
SIMATIC TD 200 Operator Interface
C79000-G7076-C205-04
20
40
Advertisement
Table of Contents
