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NI WSN-3202 User Guide and Specifications
24
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Detecting a Overcurrent Condition
If the node has detected an overcurrent condition, it immediately stops driving the DIO line, goes
to a safe power down state, and blinks a four blink error code. The node must be manually reset or
power-cycled to resume operation. A DIO line can be in overcurrent if it is driving high, or driving low,
but not if it is tristated. To identify which DIO line tripped the overcurrent protection, set all the DIO
lines to tristate and one by one set them to the desired drive mode and value until the protection is
tripped.
Resetting Channels After an Overcurrent Condition
After you have identified and removed the cause of the overcurrent condition, to resume normal
operation, you must reset the node by pressing the RESET button or by removing and reapplying power
to the node.
NI WSN-3202 Device Pinout
Figure 24.
NI WSN-3202 Pinout
1
0
2
3
4
5
6
7
9
8
10
11
12
1
3
14
15
16
17
DIO PWR
D GND
DIO
3
D GND
DIO 2
D GND
DIO 1
D GND
DIO 0
S
EN PWR
AI
3
AI GND
AI GND
AI 2
AI GND
AI 1
AI GND
AI 0