Solartron 1260 - Input Command Terminator

2.3 GPIB
SWITCHES
Some interface
functions are
set by miniature
toggle
switches on the rear panel of the
instrument. These
functions are
described below.
(The
remaining interface functions
are set from
the [GPIB CONFIGURE]
menu.)
The GPIB switches are shown in Fig 7.2.
These switches must be set before
the
instrument can be used in a GPIB system.
ADDRESS
Fig 7.2 GPIB switches. (All switches shown
in
off
position.)
Once the switches have
beenset the instrument
must
read them,
so that their settings
can be implemented.
The switches are read automatically
at
power-on,
or on
INITIALIZE, RESET, or
BREAK. Power-on
and
BREAK leave
other control settings
unchanged,
whilst
INITIALIZE
and RESET return them to the default state.
The GPIB switch functions
are described in Sections 2.3 1 to 2.3.4 below.
2.3.1 Device
Address
The
ADDRESS switches
select the
GPIB address of the instrument. To avoid
problems
associated
with
mixing binary
and ASCII information two GPIB ports are
provided.
One
port
is used for
for ASCII commands and data and the other for high
speed binary dump output.
The two ports are serviced through the
same
GPIB
connector, but each has its own
software address.
The address of the ASCII
input/output port is
the
major address.
This
address
must
always be an even number,
so always
set
the left-hand
T
switch
to the
off
position.
The odd-numbered address
immediately following
a major address is the minor
address and is assigned
automatically
to
the
binary port.
*
2.3.2 Input Command
Terminator
Use switches
FI
and
F2 to select
the
terminator
that the instrument is
to
recognise for
GPIB commands:
FI
F2
Terminator Selected
off off If (line
feed)
on off
cr
(carriage
return)
off on
;
(semicolon)
on on EOI
(End or Identify signal)
7.4
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