Valhalla 2300, Operation Manual

Page: 51 / 115

LOCAL
When the 2300 is in the LOCAL state the
REMOTE indicator on the front panel is
extinguished and full manual control of the
2300 as described in Sections 4 through 6
may be performed. The user should note that
it is not possible to enter the REMOTE state
other than via the system controller. The user
should also note that the 2300 will accept
commands from the IEEE-488 bus while in
the LOCAL state but they will be discarded.
REMOTE
As mentioned previously, if the 2300 receives
its listen address while the REN line is
asserted it will enter the REMOTE state. In
this state the REMOTE indicator on the front
panel is illuminated and all keys on the front
panel are disabled with the exception of the
RUN/HOLD and SAMPLE keys.
7-6-2. Post RESET delay
To ensure that all wires are settled following a
device clear it is recommended that a
minimum delay of 500ms is allowed prior to
performing any bus operation with the 2300
following either of the above actions.
7-7. Commands and Examples Using
HP Basic
This set of paragraphs lists all commands
recognized by the 2300 Series of Power
Analyzers. As in preceding examples it is
assumed that the programmer is using HP
Basic and that the 2300 has its listen address
set to 15. It is also assumed that the user is
familiar with the operating principles
discussed in Sections 4 through 6. If you are
using a language other than HP Basic, consult
your programmer's manual for the correct
command syntax.
Notes: The 2300 will look for an "input data
terminator" that signals the end of the
command line. The 2300 recognizes a __
(carriage return, line-feed) as the end of the
command line. These items should be
automatically sent by the system controller
and are not shown in the examples that
follow. Note that all commands
must be sent
in upper case.
7-7-1. REMOTE and LOCAL
These commands place the 2300 in the
REMOTE or LOCAL operating modes:
REMOTE 715 Enables remote operation
LOCAL 715 Selects local operation
7-7-2. Voltage Range Commands
These commands are used to select the
voltage range of the 2300 (2300L):
Examples:
OUTPUT 715;"V0" Selects 50 (5) volt range
OUTPUT 715;"V1" Selects 150 (15) volt range
OUTPUT 715;"V2" Selects 300 (30) volt range
OUTPUT 715;"V3" Selects 600 (60) volt range
7-7-3. Current Range Commands
These commands are used to select the current
range of the 2300:
Examples:
OUTPUT 715;"I0" Selects 0.2 amp range
OUTPUT 715;"I1" Selects 0.5 amp range
OUTPUT 715;"I2" Selects 1 amp range
OUTPUT 715;"I3" Selects 2 amp range
OUTPUT 715;"I4" Selects 5 amp range
OUTPUT 715;"I5" Selects 10 amp range
OUTPUT 715;"I6" Selects 20 amp range
OUTPUT 715;"I7" Selects 50 amp range
OUTPUT 715;"I8" Selects 100 amp range