Displaying The Program Status - Siemens Simatic S7-200 System Manual

S7-200 Programmable Controller System Manual

Displaying the Program Status

STEP 7–Micro/WIN allows you to monitor the status of the user program as it is being executed. When
you monitor the program status, the program editor displays the status of instruction operand values.
To display the status, click the Program Status button or select the Debug > Program Status menu
command.
Displaying the Status of the Program in LAD and FBD
STEP 7–Micro/WIN provides two options for displaying the status of LAD and FBD programs:
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End of scan status: STEP 7–Micro/WIN acquires the values for the status display across multiple
scan cycles and then updates the status screen display. The status display does not reflect the
actual status of each element at the time of execution. The end-of-scan status does not show status
for L memory or for the accumulators.
For end of scan status, the status values are updated in all of the CPU operating modes.
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Execution status: STEP 7–Micro/WIN displays the values of the networks as the elements are
executed in the S7-200. For displaying the execution status, select the Debug > Use Execution
Status menu command.
For execution status, the status values are updated only when the CPU is in RUN mode.
Tip
STEP 7–Micro/WIN provides a simple method for changing the state of a variable. Simply select the
8
variable and right-click to display a menu of options.
Configuring How the Status is Displayed in the LAD and FBD Program
STEP 7–Micro/WIN provides a variety of options
for displaying the status in the program.
To configure the display option for the status
screen, select the Tools > Options menu
command and then select the Program Editor
tab, as shown in Figure 8-2.
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Figure 8-2 Options for the Status Display