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rINSTCONTROL/Utility functions/runInstrument.m
2ea49bd2e2dfTekRSA-Freq-vs-Time

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runInstrument.m
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% Create instrument instance and add it to the collector
function Instr = runInstrument(name, instr_class, varargin)
% Get the unique instance of Collector
Collector = MyCollector.instance();
% Check if the instrument is already running
if ismember(name, Collector.running_instruments)
% If instrument is already present in the Collector, do not create
% a new object, but try taking the existing one.
disp([name, ' is already running. Assigning the existing ', ...
'object instead of running a new one.']);
Instr = getInstrument(Collector, name);
return
end
% Create a new instrument object
if ~exist('instr_class', 'var')
% Load instr_class, interface, address and other startup arguments
% from InstrumentList
InstrumentList = getLocalSettings('InstrumentList');
ind = cellfun(@(x)isequal(x, name), {InstrumentList.name});
assert(any(ind), [name ' must correspond to an entry in ' ...
'InstrumentList.'])
InstrEntry = InstrumentList(ind);
if length(InstrEntry) > 1
% Multiple entries found
warning(['Multiple InstrumentList entries found with ' ...
'name ' name]);
InstrEntry = InstrEntry(1);
end
instr_class = InstrEntry.control_class;
assert(~isempty(instr_class), ['Control class is not specified '...
'for ' name]);
instr_args = struct2namevalue(InstrEntry.StartupOpts);
else
% Case when all the arguments are supplied explicitly
instr_args = varargin;
end
% Create an instrument instance and store it in Collector
Instr = feval(instr_class, instr_args{:});
addInstrument(Collector, name, Instr);
try
% Open communication. Typically instrument commands will re-open
% the communication object if it is closed, but keepeing it open
% speeds communication up.
if ismethod(Instr, 'openComm')
openComm(Instr);
end
% Send identification request to the instrument
if ismethod(Instr, 'sync')
sync(Instr);
end
% Send identification request to the instrument
if ismethod(Instr, 'idn')
idn(Instr);
end
catch ME
warning(['Could not start communication with ' name ...
'. Error: ' ME.message]);
end
end
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