User Manual
DIC324
Table 3-2: Type of inputs
Input
number
Two-wire digital input
Single-wire digital and
potential-free contact
Two-wire
potential-free
contact
0
XP20[3-5]
XP20[5-7]
XP20[1-3] & XP20[5-7]
1
XP20[4-6]
XP20[6-8]
XP20[2-4] & XP20[6-8]
2
XP19[3-5]
XP19[5-7]
XP19[1-3] & XP19[5-7]
3
XP19[4-6]
XP19[6-8]
XP19[2-4] & XP19[6-8]
4
XP18[3-5]
XP18[5-7]
XP18[1-3] & XP18[5-7]
5
XP18[4-6]
XP18[6-8]
XP18[2-4] & XP18[6-8]
6
XP17[3-5]
XP17[5-7]
XP17[1-3] & XP17[5-7]
7
XP17[4-6]
XP17[6-8]
XP17[2-4] & XP17[6-8]
8
XP16 [3-5]
XP16[5-7]
XP16[1-3] & XP16[5-7]
9
XP16[4-6]
XP16[6-8]
XP16[2-4] & XP16[6-8]
10
XP15 [3-5]
XP15[5-7]
XP15[1-3] & XP15[5-7]
11
XP15[4-6]
XP15[6-8]
XP15[2-4] & XP15[6-8]
12
XP14[3-5]
XP14[5-7]
XP14[1-3] & XP14[5-7]
13
XP14[4-6]
XP14[6-8]
XP14[2-4] & XP14[6-8]
14
XP13 [3-5]
XP13[5-7]
XP13[1-3] & XP13[5-7]
15
XP13[4-6]
XP13[6-8]
XP13[2-4] & XP13[6-8]
Two-wire connection of signals
With such a connection, the input signals are isolated from each other and the
system. Each input signal is connected to the contacts by a couple of wires (without a
common wire): +DIx, -DIx , where x=0...15.
Single-wire connection of digital signals
Such a connection can be used if signals have a common wire (ground or other
potential), in which case the input channels are isolated only from the system. Each signal
is connected to the relevant cDIx, where x=0..15, and a common wire to one of the
contacts -Vin of the XP10 connector.
Two-wire connection of potential-free contacts
With the two-wire connection, the potential-free contact is connected to the contacts:
+DIx, -DIx, where x=0..15. For supplying the potential-free contacts with power, an external
source Vdc connected to coVin and -Vin of the XP10 connector will be used.
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