Technical data

Diagnostics
23.5 Module Information
Programming with STEP 7
Manual, 05/2010, A5E02789666-01 487
Function/Tab Information Use
Stacks
Stacks tab: Can only be called up in
STOP mode or HOLD mode.
The B stack for the selected module is
displayed. You can then also display the I
stack, the L stack, and the nesting stack
and jump to the error location in the
interrupted block.
To determine the cause of a transition to
STOP and to correct a block
IO device diagnostics Diagnostic data of the selected
PROFINET IO device
To find out the cause of an error on an IO
device
Identification Identification data of the selected module,
for example the serial number,
manufacturer's identification
The online information from the inserted
module can be compared with the data of
the configured module.
Communication
diagnostics
Diagnostic data (communication error) of
the selected PROFINET module
To find out the cause of a communication
error to a port or interface of an IO device.
Interface Information on the selected PROFINET
module, for example IP address
To obtain out all the interface properties
of a PROFINET module
Power Connection Physical properties of the PROFINET
interface of a PROFINET module
To obtain all the physical properties of the
PROFINET interface of a PROFINET
module
Statistics Statistical data for sent and received data
packets of a PROFINET module
To evaluate the quality of the data
transfer from or to a PROFINET module
Additional Information Displayed
For each tab, the following information is displayed:
• Online path to the selected module
• Operating mode of the corresponding CPU (for example, RUN, STOP)
• Status of the selected module (for example, error, OK)
• Operating mode of the selected module (for example, RUN, STOP) if it has its own operating
mode (for example, CP 342-5)
The operating mode of the CPU itself and the status of the selected module cannot be displayed if
the module information for a non-CPU module is opened from the "Accessible Nodes" window.
Displaying a Number of Modules Simultaneously
You can display the module information for a number of modules simultaneously. To do this, you
must change to the respective module context, select another module, and then call the module
information for it. Another "Module Information" dialog box is then displayed. Only one dialog box
can be opened for each module.
Updating the Display of Module Information
Each time you switch to a tab in the "Module Information" dialog box, the data are read from the
module again. While a page is displayed, however, the contents are not updated. If you click the
"Update" button, you can read the data from the module without changing the tab.