Section
4
Computer Interfacing
General Guidelines
The
2832C
has two computer interface ports: GPlB and
RS232C.
The GPlB
port conforms with the IEEE Standard
488.1
hardware standard and the lEEE
488.2
software standard. The protocol for the
RS232C
port conforms
as
much
as possible to the IEEE
488.2
software standard.
As
specified by the IEEE
488.2
standard, there are two command types; device
independent commands and device dependent commands. The device
independent commands have the same meaning to all devices and
are
defined
as part of the lEEE
488.2
standard. All device independent commands start
with an asterisk
(').
Device dependent commands do not start with an
asterisk and have meanings unique to the Model
28324.
A query is a com-
mand that invokes a response from the meter. All queries are terminated by a
question mark
(?).
It
is
recommended that when a query is made, that the
response to that query be read before other commands are issued. When a
query
is
made to the GPlB interface, the
MAV
bit in the status byte should be
checked by means of a serial poll to make sure that the data is available
before reading the response. (See Appendix
C.4
Status Byte)
Computer Interface Terminology
Listed below are key abbreviations and concepts used in the command
reference section of this manual.
<...>
Delimiting Punctuation
For the purposes of this manual, any string enclosed by
<....>
is considered to
be a command, a string or a numerical argument. The punctuation
<....>
is
used to symbolize the typographic limits of the command, string or argument
in question.
<EOI>
End
or
Identify
An
IEEE
488.1
signal sometimes sent with the endaf-string character.
clST>
Individual
Status
This status is generated by the status byte and parallel poll enable register. It
is used in responding to parallel polls.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
To Next Page
Loading...
Need help?
General
