Using A Status Chart To Monitor And Modify The Data In The S7-200 - Siemens Simatic S7-200 System Manual

Displaying the Status of the Program in STL
You can monitor the execution status of your STL program on an instruction-by-instruction basis. For an
STL program, STEP 7–Micro/WIN displays the status of the instructions that are displayed on the screen.
STEP 7–Micro/WIN gathers status information from the S7-200, beginning from the first STL statement at
the top of the editor window. As you scroll down the editor window, new information is gathered from the
S7-200.
STEP 7–Micro/WIN continuously updates values
on the screen. To halt the screen updates, select
the Triggered Pause button. The current data
remains on the screen until you deselect the
Triggered Pause button.
Configuring Which Parameters Are
Displayed in the STL Program
STEP 7–Micro/WIN allows you to display the
status of a variety of parameters for the STL
instructions. Select the Tools > Options menu
command and then select the STL Status tab.
See Figure 8-3.

Using a Status Chart to Monitor and Modify the Data in the S7-200

The Status Chart allows you to read, write, force,
and monitor variables while the S7-200 is
executing your program. Select the View >
Component > Status Chart menu command to
create a status chart. Figure 8-4 shows a sample
status chart.
You can create multiple status charts.
STEP 7–Micro/WIN provides toolbar icons for
manipulating the status chart: Sort Ascending,
Sort Descending, Single Read, Write All, Force,
Unforce, Unforce All, and Read All Forced.
To select a format for a cell, select the cell and
click the right mouse button to display the context click the right mouse button to display the context
menu.
Hardware Troubleshooting Guide and Software Debugging Tools
Figure 8-3 Options for Displaying STL Status
Figure 8-4 Status Chart
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