Function Parameter Index Reference
8/99 RS232 Communications Reference Manual 91
BCO 15 REAL O R Back Calculation Out (%)
ATI 16 BOOL O R Auto Tune Indicator. ON = Auto Tune in
progress
PVI 17 REAL I R Process Variable Input (eu) (pv_lo <= PV <=
pv_hi)
RSP 18 REAL I R Remote Set Point (% or eu per sp_units)
FFV 19 REAL I R Feed Forward Value (%)
TRV 20 REAL I R Output Track Value (%)
TRC 21 BOOL I R Output Track Command {OFF, ON}
BCI 23 REAL I R Back Calculation Input (%)
BIAS 24 REAL I R Remote bias value for ratio PID
Static Configuration Parameters:
Table 5-60 PID Static Configuration Parameters
Parameter Index Type Description
GAIN 0 REAL proportional gain, 0.1 to 1000 or proportional band, 0.1% to
1000% [Tune Set 1]
RATE 1 REAL
derivative time, 0 or 0.1 to 10 (minutes) [Tune Set 1]
RESET 2 REAL
integration time, 0 or 0.02 to 50 (minutes) or repeats per minute, 0
or 0.02 to 50 (repeats) [Tune Set 1]
pv_hi 4 REAL
pv High Range value –99999 to 99999 (default 100)
pv_lo 5 REAL
pv Low Range value –99999 to 99999 (default 0)
sp_hi_lim 11 REAL
set point high limit, -99999 to 99999 (default 100)
sp_lo_lim 12 REAL
set point low limit, -99999 to 99999 (default 0)
outhilim 14 REAL
output high limit, -5 to 105
outlolim 15 REAL
output low limit, -5 to 105
failsafe 16 REAL
failsafe output value, -5 to 105, (default 0)
al_sp[4] 17-20 REAL alarm set points al1spl, al1sp2, al2spl, al2sp2, -99999 to 99999
(default 0)
al_hyst 25 REAL
alarm hysterysis 0 to 5 (%)
man_reset 26 REAL
Manual Reset, -100 to 100 (in % output) (default 0) [used for both
tune sets]
FUZZY 28 BOOL
ON enables fuzzy logic overshoot suppression (default OFF)
TUNESET2 29 BOOL
Use tune set 2 (default OFF)
GAIN2 30 REAL proportional gain, 0.1 to 1000 or proportional band, 0.1% to
1000% [Tune Set 2]
RATE2 31 REAL
derivative time, 0 or 0.1 to 10 (minutes) [Tune Set 2]
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