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Model DRC-91C/93c
8229
Scanner Conversion Option
8 2 2 9 S C A N N E R C O N V E R S I O N O P T I O N
8229.1
INTRODUCTION
Table
8229-1.
J9
8229
Scanner
This Section contains information
pertaining
to
the
Model
8229
Scanner Conversion for the DRC-
9
1C/
9
3C
Temperature
Controller
.
Included
is
a
description,
specifications,
installation,
o p e r a t i o n
and
maintenance
information.
Conversion
option connections
8229.2
DESCRIPTION
The
8229
Scanner Conversion is
designed to be installed in a DRC-
91C/93C
and
provides
four
additional channels of sensor input
to Input
A.
The 8229 inputs are
designated Al through
A4
and their
In essence, the 8229 routs the
selection
is
identified
in
the
sensor signals from all five Input
display window at the left of the
A
channels to the
A
Input Card.
display. With the 8229 installed,
The
A 1
through
A4
8229
inputs are
the DRC-91CJ93C is expanded from
designed for four lead measurements
the standard dual sensor input to
and
have
independent
pairs
of
handle six input sensors.
current and voltage leads.
The
c u r r e n t
l e a d s
h a v e
a
The
8229
A 1
through
A4
channels can
make-before-break switching action
be selected directly
(using the
and
the
voltage
leads
are
SENSOR
A
key) or included in the
break-before-make.
The BO through
SCAN
sequence.
A n
independent
B2
outputs
on
J9
are
a
BCD
Dwell time
(0
to 99 seconds) can be
representation
of
the
channel
assigned to each of the additional
selected with BO being the least
inputs.
significant bit and B2 the most
significant bit
(a
0
represents
The Al through
A4
channels of the
logic LO and a 1 logic HI w i t h
Model 8229 Scanner are accessed
respect to the Digital Ground on
through
a
24
pin
"D"
style
J9).
Logic
000
represents channel
connector located
in
the J9 Option
AO,
001
channel
A l ,
010
channel A2,
Port
on the 91C/93C rear panel.
011
channel
A3
and
100
represents
Pin assignments for the connector
channel
A4
on
B2,
B1
and
BO
are shown
in
Table 8229-1.
The
pin
configuration for this
connector is identical to the pin
8229.3 SPECIFICATIONS
configuration
for
the
IEEE-488
connector.
Specifications for the Model 8229
Scanner Conversion option are given
Even though the Input
A
contacts
in
Table 8229-2.
are not on the J9 connector, the
sensor signal
from
Input
A
is
routed through the
8229
Scanner.
respectively.
COPYRIGIT 12/87 LSCI
8229-1
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