3-13
3
TABLE 3-1 IEEE-488.2 COMMON COMMANDS
COMMAND NAME
DESCRIPTION
Clears all event registers summarized in
the status byte, except for "Message Avail-
able," which is cleared only if *CLS is the
first message in the command line.
Sets "Event Status Enable Register" to
<value>, an integer between 0 and 255.
<value> is an integer whose binary equiva-
lent corresponds to the state (1 or 0) of bits
in the register. If <value> is not between
0 and 255, an Execution Error is gener-
ated.
EXAMPLE: decimal 16 converts to bi-
nary 00010000 which sets bit 4 to a logi-
cal 1.
4863 returns the <value> of the "Event
Status Enable Register" set by the *ESE
command. <value> is an integer whose
binary equivalent corresponds to the state
(1 or 0) of bits in the register.
4863 returns the <value> of the "Event
Status Register" and then clears it. <value>
is an integer whose binary equivalent
corresponds to the state (1 or 0) of bits in
the register.
Clear Status
Event Status
Enable
Event Status
Enable Query
Event Status
Register Query
* CLS
*ESE <value>
*ESE?
*ESR?
3.5
488.2 CONFORMANCE INFORMATION
The IEEE 488.2 Standard mandated a list of common commands that are
common to all IEEE 488.2 compatible devices. The 4863 responds to these
commands and to some optional common commands defined in the IEEE-
488.2 Standard. Table 3-1 lists how the 4863 responds to these commands
and describes their effect on the 4863 and its status reporting structure.
Any command that ends with a question mark '?' is a query. All queries
should be followed by reading their response to avoid data loss and a
command execution error.
