Справочник Пользователя для National Instruments FP-3000

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Chapter 2
Installation and Configuration
2-14
©
 National Instruments Corporation
HotPnP (Hot Plug and Play)
The HotPnP feature simplifies system installation, configuration, and 
maintenance. With the HotPnP feature, you can remove or insert 
I/O modules into the FieldPoint terminal bases while power is on, even if 
the system is already engaged in network activity. You do not need to 
power down the entire system or even a bank to insert, remove, or replace 
I/O modules. In addition, you do not need to change the operation of the 
host computer or software to use the HotPnP feature.
Caution
To avoid damaging the network module and the terminal bases, make sure that 
you do not add or remove terminal bases while power is applied to the bank. An I/O module 
can be hot-inserted only if an empty terminal base is already available in the bank. 
HotPnP During Operation
You might need to insert or replace one or more I/O modules in a bank 
while your system is operational (power is on and the network might or 
might not be active).
While one or more new or replacement I/O modules in a bank are being 
serviced by the HotPnP feature, the other I/O modules in the bank remain 
fully operational and accessible on the network without any interruptions. 
Table 2-2.  STATUS LED Flashes and Corresponding Error Conditions
Number of 
Flashes
Error Condition
0 (stays lit)
Configuration has changed and has not been stored in 
static memory.
1
Parameter storage of nonvolatile and static parameters 
has been lost. Re-enter all stored parameters into the 
module. You can do this by re-downloading a saved 
configuration over the Fieldbus.
2
The FP-3000 detected an error in the terminal bases in 
the bank or identified a module in an illegal state. Verify 
that the protective cover is on the local bus connector of 
the last terminal base and that none of the pins of that 
connector are touching or bent. Verify that there are no 
more than nine terminal bases in the bank and that no 
terminal bases were added to the bank while power was 
applied.