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Appendix C

Fieldbus Parameters

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 National Instruments Corporation

C-17

The back calculation output used by the host when establishing a Remote 
cascade loop.

The time constant for the integral component of the PID block. It is 
measured in seconds per repeat.

Allows the user to restart the device remotely. Table C-12 lists restart 
values.

Using 

Restart to Default

 causes all your configured parameters in the 

FP-3000 to revert to their factory default settings.

The cascade input set by a remote host. This is propagated to the output of 
the block when it is in 

ROut

 mode. If the block is in 

ROut

 mode and this 

parameter is not updated in 

SHED_ROUT

 time (a parameter in the resource 

block), the block enters mode shedding. Mode shedding allows the block to 
degrade from 

ROut

 mode into some higher priority mode. For more 

information on mode shedding, refer to Appendix D, 

.

This is the back calculation output used by the host when trying to establish 
a remote output loop. While the loop is being established, it is the current 
value of the output channel and can be used by the host to initialize for 
smooth transfer of control.

Table C-12.  Restart Values

Restart 

Resource

Restarts the device.

Restart to 

Defaults

Restarts the device, restoring all parameter values to 
default values.

Restart 

Processor

Restarts the device as if the power was cycled.