Behavior Of Safety Integrated When Profibus Fails - Siemens SINUMERIK 840D sl Function Manual

05.08
Warning
!
1. The PLC interface signals (DB31, ...) with safety–related drive inputs and
outputs may not be written into using the variable service (utility) of the
NCDDE/CAP server.
2. Write machine data using variable service
An acceptance test must be carried if the SI machine data were changed using
the variable service of the NCDDE/CAP server.
3. Changing alarm priorities
The alarm priorities selected for SI must be retained.
4. Changing alarm tests
The alarm texts of the SI alarms can be modified: This must be clearly
documented for the user.
5. Carry out "acceptance test" message box
The "carry out acceptance test" may not be modified!
6. User acknowledgement
Functions relating to the user agreement (e.g. call, protective mechanism) may
not be altered.
Information for NCK–OEM users
SINUMERIK Safety Integrated can also be used for NCK–OEM applications.
Note
System memory change
System memory changes caused by the OEM application result in Alarm 27003
"Checksum error occurred".
11.6

Behavior of Safety Integrated when Profibus fails

When the drive bus fails, then communications between the drive and NCK
required for SI also fail. The pulses are immediately cancelled from both channels.
© Siemens AG 2008 All Rights Reserved
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 05.2008 Edition
11.6 Behavior of Safety Integrated when Profibus fails
Interaction with Other Functions
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