Chapter 2 Hardware Functionality
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Table 2-8: JP12 Digital output power on configuration
Isolated Outputs
Each of isolated output channels comes equipped with a Darlington
transistor. All eight output channels share common collectors and
integral suppression diodes for inductive loads.
Please note that if an external voltage (5 ~ 40 V
DC
) is applied to an
isolated output channel while it is being used as an output channel,
the current will flow from the external voltage source to the UNO-2050.
Please take care that the current through each DO pin not exceed 200
mA.
Figure 2-6 shows how to connect an external output load to the UNO-
2050’s isolated outputs.
Please note that DO6 and DO7 may be configured as Counter 0 and
Counter 1’s output pins, please refer to “section 2.6” for detail.
Figure 2-6: Isolated digital output connection
JP12
Power on configuration after hot reset
Default configuration
Keep last status after hot reset
ISO 5V
R
R
R
Internal
External
R
R
E1
V
DC
5~40V
DC
IGND
IDO0....7
COM
Load0....7