National Instruments NI 9478 - Manual (Page 12)

NI 9478 Operating Instructions and Specifications 12 ni.com
I/O Protection
The NI 9478 provides protection against overcurrent and
short-circuit conditions.
Output Current Limit Thresholds
The NI 9478 provides two configurable current limit thresholds
for the module, Limit A and Limit B. The NI 9478 continuously
monitors the current through each output channel and detects if
the current exceeds either of the current limit thresholds. You can
configure the current limit thresholds and check the current limit
output status in software to determine if the current through each
channel has exceeded the current limit thresholds. Refer to the
software help for more information about configuring current
limits and checking output status. Visit
ni.com/info and enter
cseriesdoc for information about C Series documentation.
Overcurrent Protection
You can configure each channel on the NI 9478 to disable the
output if the current through the output exceeds either current
limit threshold. This protects the NI 9478 from overcurrent and
short-circuit conditions and provides a way to limit the current
through an external device.