IFM Electronic AC015S Notice D'utilisation Originale page 24

The connected switching contacts must be configur
closed. The connection of two positively driven or two dependent
switching contacts must be made to the strands/pins S11 - S12 and
S21 - S22.
Connection of two
strand/pin S11 - S12 or strand/pin S21 - S22.
An external alarm LED can be connected between strand X1 and pin
X2.
Data bits
Data bit
In/Out
Activated input channel
SI-1
SI-2
SI-1 and SI-2
none
Activated alarm outputs
O-1
The code words 0000, XX00 and 00XX cause the AS-i safety monitor
to bring the installation into the safe state.
For mor e details on the ef fect of the data bits on the transmission
sequence refer to the configuration softwar e manual (see the chapter
"Monitoring devices").
Note:
If only one single-channel switch is to be connected to the module, it
is to be connected to the input SI-1. The second input SI-2 must be
bridged. This can be done by means of a wir e bridge between pin 3
and pin 4 on socket SI-1/2 or by means of a link between pin 1 and
pin 2 on socket SI-2.
7
independent switching contacts is made to
D0 D1
SI-1/O-1 SI-1
Bit sequence D3-D0
XX00
00XX
0000
XXXX
Bit sequence D3-D0
XXX1
D2 D3
SI-2 SI-2
ed as normally
X = random