Experimental Physics and
Industrial Control System

Bruce Hill <[email protected]> · Tue, 26 Aug 2014 00:38:36 -0700

Not my call, but we have been happy with the approach we used as it
gives independent control over the auto-on threshold, the auto-off threshold,
and the error filter factor which determines how sensitive the auto on/off is to
noise and transient conditions such as moving through the target point.

If people like this approach, the fields could look something like this:
AIIR - The auto on/off IIR filter factor
AON - The auto on error limit
AOFF - The auto off error limit
AUTO - Auto mode on/off
FERR - Filtered error

FERR = ERR * (1.0 - AIIR) + FERR * AIIR
if (AUTO && ABS(FERR) <= AOFF)   FBON = 0
if (AUTO && ABS(FERR) >   AON)    FBON = 1

Cheers,
- Bruce

On 8/25/2014 4:43 PM, Dalesio, Leo wrote:

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System