ICS ELECTRONICS 4809A, Instruction Manual, Page: 62 / 131

3-11
3
The IEEE 488.2 Standard mandated a list of common commands that are
common to all IEEE 488.2 compatible devices. The 4899A, 4819A and
the 4809A respond to all of the mandated common commands and to some
optional commands defined in IEEE-488.2. Table 3-2 lists the IEEE-488.2
commands that apply to this unit, and describes the affect they have on the
4809A, 4819A or the 4899A and its status reporting structure.
3.6 SCPI CONFORMANCE INFORMATION
TABLE 3-2 IEEE-488.2 COMMON COMMANDS
COMMAND NAME DESCRIPTION
Clears all event registers summarized
in the status byte, except for "Message
Available," which is cleared only if
*CLS is the first message in the com-
mand line.
Sets "Event Status Enable Register" to
<value>. <value> is an integer between
0 and 255, whose binary equivalent cor-
responds to the state (1 or 0) of bits in the
register. If <value> is not between 0 and
255, an Execution Error is generated.
EXAMPLE: decimal 16 converts to
binary 00010000 which sets bit 4 to a
logical 1.
4899A 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.
4899A 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?