Technical data

SINAUT Diagnostics and Service tool
3.2 STEP 7 diagnostics
Software
System Manual, 07/2009, C79000-G8976-C222-07
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3.2 STEP 7 diagnostics
Introduction
STEP 7 diagnostics involves the standard diagnostic functions of SIMATIC STEP 7. Over
and above SIMATIC installations, the STEP 7 diagnostics in the SINAUT Diagnostics and
Service tool provides information not only on the CPU modules but also information on the
TIM modules of a project. The functions in the SINAUT Diagnostics and Service tool that are
implemented on the TIM module:
● CPU messages
● Module information
● Operating mode
● Setting the time
3.2.1 CPU messages
Description of the functions
The CPU messages function is used to archive diagnostic messages entered by a CPU or
TIM module in its diagnostic buffer. Without archiving, messages in the ring buffer of the
CPU or TIM would be successively overwritten once the buffer is full.
The
CPU messages function registers the PG used for diagnostics with one or more
modules. The modules then transfer all newly generated diagnostic messages to the
registered PG. The diagnostic messages of one or more modules are archive in a common
list on the PG. The archive is designed as a ring buffer. The oldest messages are overwritten
by newly arriving messages once the archive is full.