3.4 Commands
3 – 11
Controller Polarity
APOL(?)
z
Set (query) the proportional gain polarity
{
to
z
=
(
POS 1
,
NEG 0
)
}
. Set-
ting
APOL
will override the sign of a previously-commanded
GAIN
.
APOL?
Example:
POS
Integral Gain
INTG(?)
{
f
}
Set (query) the integral gain (
I
)
{
to
f
}
, in V
/
(V
·
s).
INTG
may be set with 2 digits of resolution for 10
−
1
≤
I
≤
5
×
10
5
,
and with single-digit resolution for 10
−
2
≤
I
≤
9
×
10
−
2
. Integral
gains are unsigned (positive values only). Note that setting
INTG
does
not
modify whether the integrator is enabled or disabled. For
on
/
o
ff
control, see
ICTL
.
The allowed range for
INTG
is 10
−
2
≤
I
≤
5
×
10
5
.
INTG?
Example:
+1.5E+3
Derivative Gain
DERV(?)
{
f
}
Set (query) the derivative gain
{
to
f
}
, in V
/
(V
/
s).
DERV
may be set with 2 digits of resolution for 10
−
5
≤
D
≤
10, and
with single-digit resolution for 10
−
6
≤
I
≤
9
×
10
−
6
. Derivative gains
are unsigned (positive values only). Note that setting
DERV
does
not
modify whether the derivative is enabled or disabled. For on
/
o
ff
control, see
DCTL
.
The allowed range for
DERV
is 10
−
6
≤
D
≤
10.
DERV 0.000015
Example:
DERV?
+1.5E-5
Output O
ff
set
OFST(?)
{
f
}
Set (query) the output o
ff
set
{
to
f
}
, in volts.
The o
ff
set voltage can be set with millivolt resolution. Note that set-
ting
OFST
does
not
modify whether the o
ff
set is enabled or disabled.
For on
/
o
ff
control, see
OCTL
.
The allowed range is
−
10
.
000
≤
OFST
+
10
.
000.
OFST -12.3E-2; OFST?
Example:
-0.123
SIM960 Analog PID Controller
