HP
8904A
Option
005
3A-7
6
7
UP-IB
Operation
Enable synchronous
mode
Confgure
as
MASTER
controller
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Remote Control Commands for Option
005
Two new Special Function HP-IB codes are used with Option
005-
HP
8904As.
The binary-weighted codes are entered as an
ASCII
equivalent to enable, disable, or read the status of the phase
synchronization special functions.
For more information on how special functions are programmed, refer
to table
3-4,
HP-IB
Codes
for
the
Standard
HP
8904A
Functions
(4
of
5).
Special Flag Bit Assignments:
Using these bit patterns, the
ASCII
value for special function
6
is
64.
The
ASCII
value
of
special function
7
is
128.
Programming Considerations
Always interconnect the instruments prior to enabling these special
functions.
An
error message
is
displayed
if
the proper clock and
synchronization signals are not present when these special functions
are enabled.
Every time the Set Function
(SF)
command
is
used to set the special
functions, the previous special function settings are removed. When
setting
multiple special functions, add the values for all the functions
to arrive at the proper
ASCII
number. For instance;
if
you
are setting
specials
6
and
7
for an instrument, add their values together
(64
+
128)
to arrive at the proper special function setting value
(192).
(This
setup
is
used
in
the following programming example.)
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