1269 User Manual
Using The Enhanced Monitoring System 4-34
IEEE-488.2 Common
Commands
The EMS supports all required IEEE-488.2 commands. In
addition, the optional “*OPT?”, “*SAV”, and “*RCL”
commands are all supported. The following paragraphs
describe the IEEE-488.2 commands supported by the 1269
EMS.
*IDN? Query
This query requests the instrument to identify itself. The
EMS responds to this query with the following reply:
Racal Instruments,1269 EMS,0,<firmware revision>
This reply indicates the manufacturer (“Racal Instruments”),
the model (“1269 EMS”), the serial number (if not available,
it is “0"), and the firmware revision. The firmware revision is
the only field that may change in the future. The firmware
revision is a numeric, floating point value. An example
firmware revision is “2.1".
*RST Command
The *RST command resets the instrument to its power-on
default state. These settings are shown in
Table 4-1
of this
manual. This command does NOT change the value of
SCPI or IEEE-488.2 status registers, event registers,
condition registers, or enable registers.
*TST? Query
The *TST? query initiates an instrument self-test and
returns a reply. The reply is a integer numeric value. A
value of “0" indicates that the self-test has passed. A non-
zero value indicates that one of the commanded self-tests
has failed. Consult the “
Performing the Self-Test
” Section
of this chapter for a description of the self-test failures and
error codes associated.
*CLS Command
The *CLS command clears the SCPI and IEEE-488.2
defined status event registers. These include the
Questionable Voltage Event Register, and so on. This also
includes the Standard Event Register (see the *ESR? query
description).
*ESE Command
The *ESE command sets the value of the Standard Event
Status Enable Register. The value of this register is
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