Diagnostics  System 
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The diagnostic entries can be lost if a power outage occurs just before they could be saved into 
non-volatile memory. 
SILworX can be used to read the histories of the individual modules and represent them so that 
the information required to analyze a problem is available: 
Example: 
  Mixing the histories from various sources 
  Filtering by time period. 
  Printing out the edited history 
  Saving the edited history 
For additional functions, see the SILworX online help. 
7.2.1  Diagnostic Messages 
A diagnostic message for I/O modules is structured as follows: 
IO ERROR >> slot S I/O module type: MMMM status[Mod: mm OUT: AAAA IN: EEEE] 
channel[OUT:aaaa IN:eeee] << 
The following table describes the data fields in the message. 
Slot number of the I/O module 
Code for faults in the module's outputs 
Code for faults in the module's inputs 
Code for channel faults in the output channels 
Code for channel faults in the input channels 
Table 32:  Data Field of Diagnostic Message 
For further details on the error codes, refer to the corresponding manuals. If multiple channels 
are faulty, the data field aaaa / eeee contains an OR gate with 0x8000, e.g., the most 
significant bit is set to 1 in addition to the error code. 
The module type can be determined in the Hardware Editor.