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Section IV
M o d e l
DRC-93C
Note: Although limitations on the
4.9.6
Heater
R a n g e
-
The
R command
range of the set point are set
within the software when in temper-
The heater range can be changed
ature units; these limits are not
over the bus with the
RN1
command.
possible for sensor units due to
R6 and up are equivalent to the R0
the different characteristics for
command (see Table
4-10).
each sensor.
Since the set point is soft, the
T h e
H
Command
transition from
REMOTE
to
LOCAL
does not result in a change in the
The Per Cent Manual Heater Power
set point.
can be set between
00
and
99
with
this command.
Total power can be
4.9.2
The
"WP"
R e q u e s t
D a t a
S t r i n g
greater or less than this setting,
dependent on control settings and
This request is a subset of the
actual control sensor temperature.
"WO" command; the
"WP"
command
giving the set point value by itself.
4.9.8 T h e "W3" D a t a
S t r i n g
4.9.3
Setting the GAIN (proportional)
The settings for the gain, rate,
-The P Comnand
reset, manual heater power, heater
range as well as the instantaneous
The gain is a multiplier between
%
of Heater Power can be transmitted
from the DRC-93C with the "W3" command.
0.1
and 99., a range of 990, i.e
9 9 . / 0 . 1
=
990.
A gain of
0 . 0
i s
not allowed.
The format is free
The command "SPIDR" or any combina-
field with examples of the command
tion without a value following the
being P.1, P0.1,
P9,
P9.,
P9.0,
letter sets the chosen parameters
P99, P99., etc.
to
0,
e.g.,
"SP"
sets the set point
The string P987.12 will be inter-
preted as P87, i.e.,
the first
4.10
THE
SCANNER
INPUT
CARD
valid combination will be retained.
A
P transmitted by itself is equiva-
4 . 1 0 . 1
SCAN
Programming
.
Instructions
lent to PO or P0.0 and sets the
gain to
0 . 1 .
NOTE:
The YA, YB (Table 4-11) and
Y2S (Table
4-7)
commands should be
4
.
9.4
Setting the RESET
(Integral)
issued when the
SCAN
mode is Holding.
changing a
SCAN
time or Scanner channel
while the unit is actively scanning
The reset is set from
0 . 1
through
may cause unpredictable results.
99 (1
to
990)
seconds. Like the gain
command, it is free field with the
4.10.2
Setting the D w e l l
Time
-
same characteristics and format. A
The
YAN1N2N3
and
YBON2N3
Commands
setting of
0 . 0
turns the reset off.
The time spent on a given scanner
4.9.5
Setting the RATE ( D e r i v a t i v e )
channel can be varied between
0
and
-The D Cammand
99
seconds by setting the dwell
time for that channel. This can be
The rate is also set in seconds/10
done over the IEEE-488 Bus with
(from
0 . 1
to
9 9 ) .
It handles its
these commands or from the front
input format exactly the same as
panel. Setting the dwell time to
0
both gain and reset commands.
A
skips that channel.
setting of
0 . 0
turns the rate off.
4.9.7 %
Manual
H e a t e r
Power
-
and gain to
0 .
-The I Command
4-16
COPYRIGHT
3/88
LSCI
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