Siemens SIMATIC S7-300 Manual For Migrating page 61

5 Software Conversion
Table 5-15
OB100: Restart
OB101: Restart
OB102: Cold start (only for S7-400)
OBs for error diagnostics
As parts of the system architecture of S7-300/S7-400 and S7-1500 differ, errors
are also displayed and handled differently. Particularly in the field of hardware
errors, the new S7-1500 control system offers very convenient system diagnostics
options. Whilst the diagnostic blocks (report system error in short SFM) offered by
the system for S7-300/S7-400 still had to be selected by the users themselves, it is
automatically integrated in S7-1500. Through the integration into the firmware of
the CPU, information can also be displayed in STOP mode. The system provides a
uniform display concept for the user, no matter whether in engineering, in the web
server, on the panel or on the display.
For information on system diagnostics, please refer to the following two entries:
https://support.industry.siemens.com/cs/ww/en/view/68011497
https://support.industry.siemens.com/cs/ww/en/view/98210758
Figure 5-1
S7-1500
If other plant-specific programming is necessary in the error OBs, naturally this is
possible.
Migration S7-300/S7-400 nach S7-1500
Entry ID: 109478811, V1.1,
S7-300 CPUs/
S7-400 CPUs
05/2017
S7-1500 CPUs
Up to 100, OB_Startup
that are performed one after the other in a call
phase
STEP 7 (TIA) CPU web browser
HMI CPU display
PROFINET IE
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