National Instruments FieldPoint FP-2000, User Manual, Page: 54 / 94

Chapter 4 Feature Set Description
FP-2000/2010/2015 User Manual 4-4 ni.com
Commands sent to a missing module return an error response, but the
FP-20
xx stores the commands and applies the effects of these commands
if a suitable replacement module is inserted.
When a new I/O module is connected in place of one that was removed, the
FP-20
xx first verifies that the replacement I/O module is compatible with
the one that was removed. If the I/O module is the same as, or is compatible
with, the one removed, the FP-20
xx configures the replacement I/O module
with its predecessor’s configuration and output value settings.
Table 4-1 shows how modules are configured after HotPnP replacement.
LED Indicators
The FP-20 xx has several LEDs to convey status information.
POWER LED
The green POWER LED is lit while the FP-20 xx is powered up. This LED
indicates that the power supply connected to the FP-20 xx is acceptable, and
that the FP-20 xx is supplying power to the I/O modules.
STATUS LED
The red STATUS LED is off in normal operation mode. The FP-20 xx
indicates specific error conditions by flashing STATUS a specific number
of times. Refer to the STATUS LED Error Indications section of
Table 4-1. Module Configuration Results after HotPnP Replacement
Replacement
Module
Start in Factory
Default
Replacement Module
Configuration after HotPnP
Compatible with the removed
module Either Enabled or
Disabled Same as the configuration of the
removed module
Incompatible with the removed
module but compatible with the
stored Snapshot information Disabled Same as the configuration stored in
the Snapshot
Enabled Factory default configuration of
replacement module
Incompatible with the removed
module and incompatible with the
stored Snapshot information Either Enabled or
Disabled Factory default configuration of
replacement module