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GP-IB Interface
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14.1 About the IEEE 488.2-1992 Standard
The GP-IB interface of the instrument conforms to the
IEEE 488.2-1992 Standard. This standard specifies
that the following 23 items be stated in the document.
This section describes these items.
(1) Of the IEEE 488.1 interface functions, the
subsets that are supported
See “GP-IB Interface Specifications” on page 14-3.
(2) The operation of the device when it is assigned
an address outside the 0 to 30 range
The address of this instrument cannot be set to an
address outside the 0 to 30 range.
(3) Reaction of the device when the user changes
the address
The address change is detected when the address
is set on the GP-IB address setup screen (see
section 14.4). The new address is valid until the
next time it is changed.
(4) Device settings at power-up. The commands
that can be used at power-up.
The settings selected in section 11.3, “Selecting
the Settings Applied at Power ON.” If you issue
the *RST common command, the GS820 always
returns to the factory default settings.
(5) Message exchange options
(a) Input buffer size
64 KB.
(b) Queries that return multiple response
messages
See the example of the commands given in
section 16.2.
(c) Queries that create response data when the
command syntax is being analyzed
All queries create response data when the
command syntax is analyzed.
(d) Queries that create response data during
reception
There are no queries of which the response
data are created upon receiving a send request
from the controller.
(e) Commands that have parameters that
restrict one another
See the example of the commands given in
section 16.2.
(6) Items that are included in the functional or
composite header elements constituting a
command
See sections 16.1 and 16.2.
(7) Buffer sizes that affect block data transmission
The buffer size of block data is 2 MB.
(8) A list of program data elements that can be
used in equations and their nesting limitations
Equations cannot be used.
(9) Syntax of the responses to queries
See the example of the commands given in section
16.2.
(10) Communication between devices that do not
follow the response syntax
Not supported.
(11) Size of the response data block
2 MB maximum.
(12) A list of supported common commands
See section 16.2.14, “Common Commands.”
(13) Device condition after a successful calibration
The settings return to the conditions that existed
before the calibration, measurements are
terminated, and previous measured data are
invalidated.
(14) The maximum length of block data that can be
used for the *DDT trigger macro definition
Not supported.
(15) The maximum length of the macro label for
defining macros, the maximum length of block
data that can be used for the macro definition,
and the process when recursion is used in
macro definitions
Macro functions are not supported.
(16) Reply to the IDN? query
See section 16.2.14, “Common Commands.”
(17) Size of storage area for protected user data for
*PUD and *PUD?
*PUD and *PUD? are not supported.
Chapter 14 GP-IB Interface