National Instruments FieldPoint FP-1000 - Chapter 3 Feature Set Description; High-Speed Local Bus; Network Watchdog Timer

© National Instruments Corporation 3-1 FieldPoint FP-1000/1001 User Manual
Chapter
3
Feature Set Description
This chapter describes the feature set for the FP-1000 and FP-1001
network modules.
High-Speed Local Bus
The FP-1000/1001 provides a high-speed local bus for communication
to the I/O modules in the bank. The high-speed local bus has low
overhead that enables fast response to commands from the host
computer.
Network Watchdog Timer
The FP-1000/1001 can detect unexpected periods of network inactivity
and respond to them in a user-defined way. The network watchdog
timer feature enables you to guard your system against failures in the
network connection, cables, or host computer, and to put the channel
outputs in a user-defined state (the watchdog state) if such failures do
occur.
You can set the watchdog output values to be different from the
power-up output values. Some system applications do not differentiate
between power-up output values and watchdog output values, while
other applications treat the two conditions differently. The
FP-1000/1001 supports both types of applications.
By default, the watchdog timer for the bank is disabled on power up. To
use the watchdog timer, set up the following parameters. You can use
either the FieldPoint Explorer software or the FieldPoint command set.
• Watchdog data value for each channel
• Watchdog data enable/disable status for each channel
• Watchdog enabled/disabled status for each I/O module
• Watchdog timeout value for the bank