Pepperl+Fuchs AS-I 3.0, Руководство пользователя

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AS-i 3.0 Command Interface
Commands of the Command Interface
4.8.2.1 Slave list with Ec-Flags
(Function: 00
16)
List of "safety at work input slaves" ("AS-i Safety at Work") being in released
state.
Safety at work input slaves have the profile S-7.B or S-0.B (IO = 0 or 7, ID = B,
see chap. <Read actual configuration (READ_CDI)>.
The "Safety at Work" list 1 is a bit list which contains a bit for each possible slave
address (1 - 31). This list is written in the bytes 5 until 8 in the response of the
command of the command interface. Additionally, the reponse contains the ec-
flags of the AS-i master in the bytes 3 and 4 (see chap. <Get Flags
(GET_FLAGS)>.
The bits of the "Safety at Work" list 1 are set if the safety function of the slave is
activated (e.g. emergency button pressed). The bit is only set at security slaves
when both contacts are released, otherwise the bits have the value 0. "Normal"
(non-security) slaves also have the value 0.
Since the safety monitor is also being activated when a safety slave is missing or
if the AS-i circuit is shut off (offline active), the ec-flags will also be transmitted. It
is sufficient however to monitor the group error message Cok (configuration er-
ror). As long as no configuration error, the list of the "safety at work input slaves"
can be used.
Configured safety slaves which are not available, and available slaves sending a
wrong code sequence, will not be entered in this list.
With the bit "O", the sequence of the bits within the "Safety at Work" list 1 can be
chosen.
Request
byte
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
1 7E
16
2 T O circuit
3 00
16
Tab. 4-216.
Response (if O
≡
0)
byte
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
1 7E
16
2 T result
3 – Pok
4 OR APF NA CA AAv AAs S0 Cok
5 7 6 5 4 3 2 1 -
6 15 14 13 12 11 10 9 8
7 23 22 21 20 19 18 17 16
8 31 30 29 28 27 26 25 25
Tab. 4-217.