©
National Instruments Corporation
4-1
4
Feature Set Description
This chapter describes the feature set for the FP-20
xx
network module.
Guarding against Network Failures (Network Watchdog)
The network watchdog feature of the FP-20
xx
enables you to guard your
system against failures in the network connection, cables, or host computer.
If the network watchdog is enabled and the FP-20
xx
loses communication
with all hosts or clients over the network, the FP-20
xx
sets its output
channels to predefined values (the watchdog state).
Note
National Instruments recommends leaving the network watchdog disabled when
you are running embedded applications on the FP-20
xx
.
Network watchdog output values can be different than power-up output
values. For example, you may want to turn on an output value when you
power up, but turn it off if network communication is lost.
The network watchdog for the bank is disabled by default. Follow these
steps to enable it:
1.
In FieldPoint Explorer, right-click an output module and select
Edit this device
.
2.
Select
Enable
or
Enable on Use
for the current watchdog
configuration.
3.
Click
Channel Configuration
, then configure these settings:
•
Enable/disable the watchdog for each channel.
•
Enter a watchdog data value for each channel.
4.
Click
OK
.