Connecting the SAI Distributor
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89
5.14 SAI-AU M12 SB 2CNT
The SAI distributor Active Universal is equipped with
the functions of a decentralised I/O system. Each
distributor is equipped with module-specific actua-
tor/sensor functions and a sub-bus interface. The
modules combine the complete electronics in a wa-
ter- and dust-proof protected housing. This enables
their use in harsh environments. The module SAU-
AU M12 SB 2CNT is designed to connect two digital
signals for counting purpose with four M12 connec-
tors.
Figure 58 SAI-AU M12 SB 2CNT
HINWEIS
After a fallout, mistake or restart, the
ouptput bytes must be reset over the
software. The counter clearance of the
gateways is to be made with the corre-
sponding bits in the counter channel
(chapter 6.6.9). If the output data be
changed, the bit 7 in the counter chan-
nel needs to be changed from 1 into 0.
LEDs
UB Supply voltage UB
Supplies the module and the
Plug-in stations 1 to 4
Com Communication with the gate-
way
CN Status of counter channels
V/R Direction of counter channels
GT Gate status of channels
OUT Status of digital outputs
Connections
SUB IN Sub-bus input
SUB OUT Sub-bus output
AUX Auxiliary supply for digital out-
puts
1 2 digital outputs of both channels
2 Gate input for both channels
3 Direction input for both channels
4 Counter input for both channels
Table 71 SAI-AU M12 SB 2CNT
Connection of supply voltage
The power supply is 24 V DC in accordance with
EN 61131-2; the permissible range is 18 to 30 V DC.
The dis-tributor is designed to offer protection
against polarity reversal.
OUT
GT
V/R
CN
CNT
UB
COM UQ1
IN O UT
BUS
AUX
IN
Weidmüller t
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