National Instruments FieldPoint FP-1001, User Manual, Page: 28 / 65

Chapter 3 Feature Set Description
FP-1000/1001 User Manual 3-2 ni.com
SnapShot Feature
Many applications require that, upon startup, the system’s I/O modules
power up with user-specified configuration and output levels rather than
factory default settings. The SnapShot feature provides you with a
single-step method to store the current state of your FieldPoint bank for use
as the power-up state of the bank.
If you subsequently enable the SnapShot feature, you can ensure that your
system powers up with the configuration and output levels that you
specified when storing the SnapShot.
Prior to storing the SnapShot, bring all the channels to the desired power-up
settings. You can use either the FieldPoint Server software or the FieldPoint
command set to change the configuration of the FieldPoint bank, and then
store the SnapShot. The SnapShot stores all the following information in a
single step:
• Attribute and range settings of each channel.
• Output values of each channel.
• Watchdog data values of each channel. See the Network Watchdog
Timer section in this chapter for more information.
• Watchdog data enabled (or disabled) status for each channel. See the
Network Watchdog Timer section in this chapter for more information.
• Watchdog enabled (or disabled) status of each module. See the
Network Watchdog Timer section in this chapter for more information.
After you store the SnapShot information, you can still choose whether the
FP-1000/1001 uses that stored information during future power-ups.
Enable the SnapShot feature if you want the FieldPoint bank to power up
with the stored SnapShot information.
If you have enabled the SnapShot feature, the FP-1000/1001 restores the
stored settings to all I/O modules and channels in the bank every time you
power up, until you disable the SnapShot feature. If the SnapShot feature is
disabled, the FieldPoint bank powers up with factory-default settings.
At some time you might want to change the stored SnapShot information.
To make incremental changes in the stored SnapShot information, you can
use the features described in the next section,
Programmable
Power-Up State .
Note The current watchdog timeout value for the FieldPoint bank is not saved when you
store the SnapShot.