30
W&T
Connections, operating elements and LEDs
3.6
Input- and Output connections
3.6.1 Input circuit
The Web-IO 12+12 Digital has 12 digital inputs divided into 3
groups of 4 inputs. The groups are galvanically isolated from
each other for up to 2kV. A reference ground is brought out for
each input group.
The permitted input voltage range is +/-30V with respect to the
corresponding reference ground.
The switching threshold of the inputs is 8V +/- 1V. Voltages less
than this are interpreted as an OFF or 0 signal. Voltages over 8V
are interpreted by the Web-IO as ON or 1. Input voltages between
7V and 9V should be avoided, since they cannot be definitively
interpreted.
on
error
system error
http:// . . . /diag
0
11
10
9
GND 8
7
5
4
6
3
2
1
GND
GND
GND
INPUT GROUP 0
INPUT GROUP 1
INPUT GROUP 2
0
11
10
9
GND
8
7
5
4
6
3
2
1
Vcc
6-30V DC
+Vdd
OUTPUT GROUP 0
OUTPUT GROUP 1
OUTPUT GROUP 2
12-24V
Vcc
W&T
www.wut.de
Web-IO
#57630
12xDigital-IO <-> 10/100BT
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
17 18 19 20 21 22 23 24 25 26
28 29 30 31 32
27
Reset
Power
St
atus
Error
Serial Port
+12 V
GND 12 V
GND 18 V
+ 18 V
Vcc
Example of an input circuit
This connection example shows two inputs being driven with
signals from different circuits. It is important that all signals for an
Summary of Contents for 57630
Page 8: ...8 W T Content...
Page 22: ...22 W T Assigning the IP address...
Page 44: ...44 W T configuring the network parameters...
Page 194: ...194 W T Diacnostics and testing...