Ff_gain (scaling, tuning), Ff_scale (scaling), Ff_val (process, scaling, tuning) – National Instruments NI-FBUS User Manual
Page 83: Field_val (process, scaling, tuning), Field_val_d (process, scaling, tuning), Free_space (diagnostic, process), Free_time (diagnostic, process)

Chapter 4
Parameters
NI-FBUS Configurator User Manual
4-18
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FF_GAIN (Scaling, Tuning)
The gain by which the feed-forward input is multiplied before it is added to
the output value of the control block.
FF_SCALE (Scaling)
The scaling parameter used by the feed-forward value of the block.
FF_VAL (Process, Scaling, Tuning)
The feed-forward value.
FIELD_VAL (Process, Scaling, Tuning)
The value from the input channel, in percent of scale.
FIELD_VAL_D (Process, Scaling, Tuning)
The value from the discrete input channel.
FREE_SPACE (Diagnostic, Process)
The percentage of memory available on the device. This can be used when
instantiating (creating) blocks to determine the remaining capacity of the
FP-3000. This value will be zero in preconfigured devices since they do not
allow user configuration.
FREE_TIME (Diagnostic, Process)
Percentage of block processing time that is available to process additional
blocks. Unused in FieldPoint.
Out Readback
The device provides a way for the action of output transducers to
be verified through a readback. The FP-3000 does not support this
feature.
Direct Write
The device provides a manufacturer-specific way to directly write
to I/O channels. The FP-3000 does not support this feature.
Table 4-12. Feature Parameter Options (Continued)
Option
Description