Using The Status Chart - Siemens Simatic S7-200 System Manual
Programmable controller
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Also See for Simatic S7-200:
- System manual (607 pages) ,
- Getting started (65 pages) ,
- Manual (55 pages)
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Installing and Using the STEP 7-Micro/WIN Software
3.8
Using the Status Chart
You can use the Status Chart to read, write, or force variables in your program.
The Status Chart editor appears by default as a minimized window icon at the bottom of the
main window (if selected in Setup
double-click the icon, or click the Restore or Maximize button on the icon (in Windows 95).
Reading and Writing Variables with the Status Chart
Figure 3-26 shows an example of a Status Chart. To read or write variables using the Status
Chart, follow these steps:
1.
In the first cell in the Address column, enter the address or the symbol name of an
element from your program that you want to read or write, and press
step for all of the additional elements that you want in the chart.
2.
If the element is a bit (I, Q, or M, for example), the format is set as bit in the Format
column. If the element is a byte, word, or double word, select the cell in the Format
column and double-click or press the
3.
To view the current PLC value of the elements in your chart, click the Single Read
button
4.
To stop the updating of status, click the Continuous Read button.
5.
To change a value, enter the new value in the "Change Value" column and click the
Write button
Status Chart
Address
"Start_1"
I0.2
"Ready_Light_1" Bit
Q1.2
VB0
VW2
VW4
VW6
VD10
VD14
VW20
VW24
Figure 3-26
3-34
Preferences... ). To access the Status Chart,
SPACEBAR
or the Continuous Read button
to write the value to the CPU.
Format
Current Value
Bit
2#0
Bit
2#0
2#0
Bit
2#1
Signed
+84
Unsigned
4400
Bit
2#0000001000110010
Hexadecimal
16#0064
Floating Point
0.0000
ASCII
'TEMP'
Hexadecimal
16#0027
ASCII
'AB'
Example of a Status Chart
ENTER
to cycle through the valid formats.
on the Status Chart.
Change Value
1
Press the
or
SPACEBAR
double-click in the cell to
select valid format.
To change a value,
enter the new value
16#65
here and click the
Write button.
10.0
16#28
'BA'
S7-200 Programmable Controller System Manual
C79000-G7076-C230-02
. Repeat this
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