National Instruments FP-3000 - Manual (Page 80)

Appendix B Fieldbus Parameters
FieldPoint FP-3000 User Manual B-2 www.ni.com
BIAS (Tuning)
The bias value, in engineering units, used to calculate the function block
output.
BKCAL_HYS (Limiting)
The amount a block’s output value must move off a limit, in percent of
scale, for the limit status to be turned off.
BKCAL_IN (Limiting, Process)
Will be linked to a downstream block’s BKCAL_OUT or SELECT_OUT
parameter. This is used to initialize a control loop through cascade
initialization. Cascade initialization allows smooth transfer for a control
block from manual to automatic mode. To bypass cascade initialization,
this parameter can be left unwired and manually set to a status of
Good,
non-cascade .
BKCAL_OUT (Process)
A back-calculation value published to the BKCAL_IN of an upstream block
in a control loop. The BKCAL_OUT parameter has the value of the block’s
current output. Before a cascade loop is initialized, the upstream block can
use this value to smoothly transfer to loop control.
BKCAL_OUT_D (Process)
An output value published to an upstream discrete block. The upstream
block can use this value to smoothly transfer to loop control.
BLOCK_ALM (Alarming, Diagnostic)
An alarm parameter used to report error conditions detected within the
block, such as block Out of Service.
BLOCK_ERR (Diagnostic)
A list of error conditions for hardware and software components associated
with the block.