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The digital in and outputs are connected according to instructions on the panel on top of Smart Logger (see picture
below).
Pin assignment for connectors
On the panel the pin assignment for the M12 connectors can be seen. The pin assignment is identical for all 8
connectors on Smart Logger. Please note that the connectors on the right side of the unit (connectors 2, 4, 6 and 8)
are placed at a 90 degree angle.
Power supply for external units
All connectors except no. 2 give 24 VDC on pin 1 and 0VDC on pin 3 for power supply of external units. The
maximum current that can be provided is 300 mA.
I/O connectors
Please note that the out signals from Smart are called Q signals. The I/O connectors on the left side of the unit
(connectors 7, 5, 3 and 1) have the signals Q0-Q3 on pin 2 of the respective connectors. The in signals I0-I7 are on
pin 4 and 5 on the respective connectors according to the table on the panel on top of the unit.
The digital inputs are adapted to voltages of 0-24 VDC with a maximum current of 50 mA, where 0-1.5 VDC is
regarded as a low input signal and 5-24 VDC is regarded as a high input signal. The digital outputs are current
sinking (NPN open collector) and are connected to 24 VDC on the unit through an external load to give 24 VDC
output to the external equipment (see picture to the right). The maximum allowed output current is 300 mA.
Pulse sensor
The pulse sensor is connected to connector 8 (input I8) with pulse signal A on pin 4 and pulse signal B on pin 5.
Pin 2 is not used.
2TLC172188M0201, rev. H
2012-01-03
M12
2
4
5
7
Q0
I0
I1
5
Q1
I2
I3
3
Q2
I4
I5
1
Q3
I6
I7
1
2
24VDC
5
4
3
0VDC
m
Smart Logger
+24 VDC
Output
0 VDC
M12
8
Encoder
I8
6
0/4-20 mA I9
4
0/4-20 mA I10
2
Power supply
PC
SMART
Load
7
www.abb.com/lowvoltage
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