WAGO -I/O-SYSTEM 750 Series Manual page 133

"Safety at Work" list 6, SAW_SLAVE_6
Function: 0x0D
This function is adapted to the 6-byte mailbox.
List of the safety-related input slaves ("AS-Interface Safety at Work"), in
which the safety function has tripped.
Safety-related input slaves have the profile S-7.B or S-0.B. (IO = 0 or 7,
ID = B, see Chapter 5.5.1 "Mailbox commands": "Read actual configuration
data").
The "Safety at Work" list 6 is a bit list, which contains one bit for each
possible slave address (1 - 31). This list appears in bytes 3 to 6 of the response
to the mailbox command.
The bits of the "Safety at Work" list 6 are set when the slave safety function
has tripped (e.g. Emergency Stop button pressed). In the case of safety slaves
with two contacts, the corresponding bit is only set when both contacts have
tripped.
Otherwise the bits have the value 0. The bits have the value 0 even in the case
of "normal" (not safety-related) slaves.
The safety monitor also trips when a safety slave is missing or if the AS-
Interface circuit has been switched off (offline active). It is, however,
sufficient to monitor the collective fault message Cok (configuration error).
The list of "safety-related input slaves" can be used as long as there is no
configuration error.
Safety-related slaves, which have been set up but are not present, and slaves,
which are present but transmit an incorrect code sequence, are not entered in
this list.
Byte
WAGO-I/O-SYSTEM 750
I/O Modules
Request
7 6 5
2 2 2
1
2 T 0
3
Mailbox command - Reference
4 3 2 1
2 2 2 2
0x7E
-
0x0D
Appendix
0
2
• 133