Safety Integrated Functions
8.5 Safety Integrated Extended Functions
Function Manual
Function Manual, 01/2011, 6SL3097-4AB10-0BP3
403
8.5.12 Message buffer
In addition to the fault buffer for F... faults and the alarm buffer for A... alarms, a special
message buffer for C... safety messages is available for Safety Extended Functions.
The fault messages for the Safety Basic Functions are stored in the standard fault buffer
(see "Buffer for faults and alarms").
Note
Set parameter p3117 = 1 if you need to save both the Basic Functions messages and the
Extended Functions messages in the standard fault buffer.
The message buffer for safety messages is similar to the fault buffer for fault messages. The
message buffer comprises the message code, message value, and message time (received,
resolved), the component number for identifying the affected SINAMICS component and
diagnostics attributes. The following diagram shows how the message buffer is structured:
0HVVDJH
FRGH
0HVVDJHWLPH
UHFHLYHG
LQPV
0HVVDJHWLPH
UHVROYHG
LQPV
0HVVDJHWLPH
UHFHLYHG
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0HVVDJHWLPH
UHVROYHG
LQGD\V
0HVVDJH
YDOXH
0HVVDJHYDOXH
IRU
IORDWYDOXHV
0HVVDJH
0HVVDJH
0HVVDJH
0HVVDJH
0HVVDJH
0HVVDJH
0HVVDJH
&XUUHQW
PHVVDJH
FDVH
VWDFNQRZ
OHGJHG
PHVVDJHFDVH
WKDFNQRZ
OHGJHG
PHVVDJHFDVH
>ROGHVW@
0HVVDJH
0HVVDJH
U>@ U>@ U>@ U>@ U>@ U>@ U>@
U>@ U>@ U>@ U>@ U>@ U>@ U>@
U>@ U>@ U>@ U>@ U>@ U>@ U>@
U>@ U>@ U>@ U>@ U>@ U>@ U>@
U>@ U>@ U>@ U>@ U>@ U>@ U>@
U>@ U>@ U>@ U>@ U>@ U>@ U>@
U>@
U>@ U>@ U>@ U>@ U>@ U>@
U>@ U>@ U>@ U>@ U>@ U>@ U>@
U>@ U>@ U>@ U>@ U>@ U>@ U>@
U>@ U>@
U>@ U>@
U>@ U>@
U>@ U>@
U>@ U>@
U>@ U>@
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U>@ U>@
6,
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6,
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Figure 8-14 Structure of the message buffer
When a safety message is present, the bit 2139.5 = 1 ("Safety message present") is set. The
entry in the message buffer is delayed. For this reason, the message buffer should not be
read until a change in the buffer (r9744) has been detected after "Safety message present"
is output.
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