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UNO-2050 User's Manual
2.5
On-board Isolated Digital Output
The UNO-2050 has 8 isolated digital output channels designated
DO0~DO7.
Pin Assignment
The connector type of UNO-2050 is plug-in screw terminal block that
enables you to connect to field I/O devices directly without additional
accessories. Figure 2-5 and Table 2-7 shows its pin assignment as well
as signal description.
Figure 2-5: Digital output connector pin assignments
Table 2-7: Digital output connector signal description
Power On Configuration
Default configuration after power on or hardware reset is to set all the
isolated digital output channels to open status (the current of the load
can’t be sink) so that users need not worry about damaging external
devices during system startup or reset.
When the system is hot reset, then the status of isolated digital output
channels are selected by jumper JP12. Table 2-8 shows the configura-
tion of jumper JP12.
Signal Name
Reference
Direction
Description
DO <0...7>
COM
Output
Isolated digital output signals
COM
-
Input
External common output of DO
GND
-
-
Isolated ground
G
N
D
D
0
0
D
0
1
D
0
2
D
0
3
D
0
4
D
0
5
D
0
6
D
0
7
C
O
M
Isoated DO
