Fluke 6060B - Command Processing; Command Execution; Error Handling

INSTALLATION AND
OPERATION
Table
2-18.
SRQ Maak and Status Values
VALUE REASON
TRUE
FALSE
1 R^ady Input buffer is empty Input buffer is not
and
no
commands are empty or commands are
being processed.
being processed.
2
Rejected
Entry
ieee-
488 rejected
ieee-
488
rejected
entry;
error code is entry error;
code
is
not zero. zero.
4 UncaLibrated RF output
i
s
not
RF output is
calibrated. (Front
calibrated.
C
Front
panel
’UNCAL' indi- panel *UNCAL' indi-
cator is lit.) cator is not Lit.)
8 Power
on Instrument
has
powered up.
Special function
08.
16
Output
valid RF output is settled. RF output is not
settled.
32
Not
Used
64
RQS SRQ mask ANDed
with
Reason for
SRQ
goes
currently set values away or serial poll
is not zero.
is performed.
128 Front panel Special function
07.
Special function 08.
The trigger
command
causes execution of the trigger buffer,
which has
been
preprogrammed with the configure trigger
command “CT’\
The trigger buffer can also be
executed by
sending the IEEE-488 group execute trigger interface message
(GET).
2-60. Command Processing
The
following paragraphs describe how
IEEE-488 commands are processed by the
Generator. Command processing
is
a
term
for how commands are executed and how
errors
are handled.
2-61.
COMMAND
EXECUTION
The execution of the
IEEE-488
commands depends on the selection of interface
modes
with one exception: if an
IEEE-488
input is buffered and the buffer becomes
full,
command execution starts and no
further input
is
accepted until there is room in the input
buffer.
For more details, refer to
the
paragraphs on
Interface Modes.
2-62.
ERROR
HANDLING
The Generator detects two types of
errors while processing lEEE-488 commands:
syntax
errors
and processing errors. Ail errors are
accumulated
until the error status is
interrogated or is explicitly cleared.
The IEEE-488
rejected entry status is interrogated
with the *TR” command. The
error status is
cleared with one of the following commands:
“CE”
Clear Error Command
“CL”
Clear Command
DCL or SDC
Clear Interface Messages
The error status
is
also cleared on power-up.
I
I
2-60