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Model
DRC-93C
Section IV
4 . 6 PROGRAMMING
INSTRUCTIONS
The Output Statement Requests are
sent by the
BUS
CONTROLLER
to the
The following discussion references
DRC-93C to tell the 93C what data
the DRC-93C at address
12.
The
to output when data output is
allowable address codes are given
requested.
These requests are
in Table 4-2. Therefore, its Talk
listed in Table 4-5 and the data
ASCII
Code is
"L"
and its LISTENER
formats are described in detail in
ASCII Code is
","
(comma).
The
the following tables as well as the
controller referred
to
in the
adjoining text
associated with
following discussion is the
BUS
CONTROLLER
and is normally a digital
computer. It should not be confused
with the temperature controller on
4 . 7 INSTRUMENT SETUP
COMMANDS
AND
the bus (DRC-93C).
Set the IEEE
REQUESTS
Address of the DRC-93C to
12
by
making Switches
5
and
6
CLOSED
(1),
4,
7
and
8
(OPEN)
(0)
and make sure
Switch
1
is OPEN
(0)
to select
When EO1
(end or identify) is
(CR) (LF) as the terminating charac-
enabled ("ZO"; Table 4-6), the EO1
ters.
Note that this should be
line is set active concurrent with
done prior to turning on the instru-
the last byte of a transfer.
Use
ment since the DRC-93C updates the
of EO1 identifies the last byte
IEEE address on power-up
only.
allowing for variable length data
Confirm that the address selected
transmissions. EO1 can be disabled
is correct by holding in the REMOTE
("Z1"; Table
4-6).
button for longer than one second
and observe the IEEE address on the
4.7.2
Interface
M o d e
-
T h e
MN1
LSCI
4.7.2.1
Local
-
This message
["MO";
93c
Table 4-61 clears the remote opera-
Add12
tion of the DRC-93C and enables
front panel operation.
Pressing
4 . 6 . 1
Commands and Requests
the front panel
LOCAL
button also
sets the
instrument to
local,
The device-dependent commands to
provided the button has not been
program the DRC-93C are given in
disabled
by
the
Local
Lockout
Table
4-4.
The 93C must be addressed
Message (see Section 4.7.2.3)
.
as a "LISTENER" to receive any
instruction or string of instruct-
See Section
4 . 5 . 6
for a discussion
ions from the Command list.
of the DRC-93C under local operation
while acting as a TALKER.
The DRC-93C input data format does
not require a set number or set
4.7.2.2 Remote
-
The DRC-93C is in
sequence of Commands to implement
the local front panel mode when
proper instrument set-up.
These
first turned on.
A
remote message
Commands are processed only after
["Ml"; see Table
4-61
allows the
the terminators [TERMl] [TERM2] are
93C to be controlled over the IEEE-
sent across the bus.
The listing
488
interface.
In Remote, the
and explanation of the 93C commands
front panel controls are disabled
are summarized in Table
4-4.
There
(except the
LOCAL
button) and are
are commands for Interface Setup,
then controllable over the IEEE
Instrument Setup, Control Setup,
Bus.
The instrument's initial set
Scanner Setup, Status Register and
up is determined by the front panel
restoring Executable Programs.
settings at the time when the
those tables.
4 . 7 . 1
EOI
Status
-
T h e
ZN1 Command
front panel display as follows:
Command
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3/88 LSCI
4-7
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