Overview Of Ieee 488.2-1987 - YOKOGAWA WT200 User Manual

Chapter 14 Communication Commands 2 (System of Commands Complying to the IEEE 488.2-1987 Standard)

14.1 Overview of IEEE 488.2-1987

The GP-IB interface provided with this instrument
conforms to IEEE 488.2-1987. This standard requires
the following 23 points be stated in this document. This
chapter describes these points.
(1) Subsets supported by IEEE 488.1 interface
functions
See the specifications on page 10-2.
(2) Operation of device when the device is
assigned to an address other than one of the
addresses 0 to 30
This instrument does not allow assignment to an
address other than 0 to 30.
(3) Reaction when the user initializes address
settings.
Change of the current address is acknowledged
when a new address is set using the
INTERFACE key menu (see page 10-11). The
newly set address is valid until another new
address is set.
(4) Device set-up at power ON. Commands which
can be used at power ON
Basically, the previous settings (i.e. the settings which
were valid when power was turned OFF) are valid.
All commands are available at power ON.
(5) Message transmission options
(a) Input buffer size and operation
The input buffer's capacity is 1024 bytes.
(b) Types of queries which return multiple
response messages
See the examples of each command in
section 14.3.
(c) Types of queries which generate response
data during analysis of the syntax
Every query generates response data when
analysis of the syntax is performed.
(d) Types of queries which generate
response data during reception
No query generates response data when it is
received by the controller.
(e) Types of commands which have pairs of
parameters.
No such commands.
(6) List of function elements which configure
commands used for the device. All those
which are included in elements of composite
command program headers
See sections 14.2 and 14.3.
IM 253421-01E
(7) Buffer size which affects transmission of
block data
Block data are not supported.
(8) List of program data elements which can be
used in equations and nesting limit
Cannot be used.
(9) Syntax of response data to queries
See the examples of each command in section
14.3.
(10) Communication between devices which do
not follow the rules regarding response data
No other modes than conforming to IEEE 488.2-
1987 are supported (see section 10.1).
(11) Size of data block of response data
Block data are not supported.
(12) List of supported common commands
See section 14.3.15, "Common Command Group."
(13) Condition of device when calibration is
successfully completed
Enters a measurement-in-progress condition.
(14) Maximum length of block data which can be
used for definition of trigger macro when
*DDT is used
*DDT is not supported.
(15) Maximum length of macro label if macro
definition is used; maximum length of block
data which can be used for definition of
macro; processing when recursion is used in
definition of macro
Macro functions are not supported.
(16) Response to *IDN?
See section 14.3.15, "Common Command Group."
(17) Size of storage area for protected user data if
PUD and *PUD? are used.
*PUD and *PUD? are not supported.
(18) Length of resource name if *RDT and *RDT?
are used.
*RDT and *RDT? are not supported.
(19) Change in status if *RST, *LRN?, *RCL and
*SAV are used.
*RST
See section 14.3.15, "Common Command Group."
*LRN? , *RCL , *SAV
These commands are not supported.
(20) Execution range of self-test using *TST?
See section 14.3.15, "Common Command Group."
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