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rINSTCONTROL/@MyLakeshore336/MyLakeshore336.m
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MyLakeshore336.m
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% Class communication with Lakeshore Model 336 temperature controller.
classdef MyLakeshore336 < MyScpiInstrument & MyCommCont
properties (SetAccess = protected, GetAccess = public)
% Temperature unit, K or C. This variable should be set
% before the command list is created.
temp_unit = 'K'
end
properties (Constant = true)
% Correspondence lists for numeric codes in parameter values.
% Indexing starts from 0. These lists are for information only.
% Values for the output mode, out_mode_n(1).
out_mode_list = {'Off', 'Closed loop PID', 'Zone', ...
'Open loop', 'Monitor out', 'Warmup supply'};
% Control input, out_mode_n(2).
control_input_list = {'None', 'A', 'B', 'C', 'D'};
% Heater ranges
heater12_range_list = {'Off','Low','Medium','High'};
heater34_range_list = {'Off','On'};
end
methods (Access = public)
function this = MyLakeshore336(varargin)
this@MyCommCont(varargin{:});
createCommandList(this);
end
% Create temperature logger
function Lg = createLogger(this, varargin)
function temp = readTemperature()
sync(this);
temp = [this.temp_a,this.temp_b,this.temp_c,this.temp_d];
end
Lg = MyLogger(varargin{:}, 'MeasFcn', @readTemperature);
% Make column headers
inp_ch = {'A', 'B', 'C', 'D'};
headers = cell(1, 4);
for i = 1:length(inp_ch)
sens_name = sprintf('sens_name_%s', lower(inp_ch{i}));
headers{i} = sprintf('T ch %s %s (%s)', inp_ch{i}, ...
this.(sens_name), this.temp_unit);
end
if isempty(Lg.Record.data_headers)
Lg.Record.data_headers = headers;
end
end
end
methods (Access = protected)
function createCommandList(this)
% Commands for the input channels
inp_ch = {'A', 'B', 'C', 'D'};
for i = 1:4
nch = inp_ch{i};
addCommand(this, ['sens_name_' lower(nch)], 'INNAME', ...
'read_ending', ['? ' nch], ...
'write_ending', [' ' nch ',%s'], ...
'info', ['Sensor name channel ' nch]);
info = sprintf('Reading channel %s (%s)', nch, ...
this.temp_unit);
addCommand(this, ['temp_' lower(nch)], ...
[this.temp_unit 'RDG'], ...
'format', '%e', ...
'access', 'r', ...
'read_ending', ['? ' nch], ...
'info', info);
end
% Commands for the output channels
for i = 1:4
nch = num2str(i);
addCommand(this, ['setp_' nch], 'SETP', ...
'read_ending', ['? ' nch], ...
'write_ending', [' ' nch ',%e'], ...
'info', ['Output ' nch ' PID setpoint in ' ...
'preferred units of the sensor']);
addCommand(this, ['out_mode_' nch], 'OUTMODE', ...
'read_ending', ['? ' nch], ...
'write_ending', [' ' nch ',%i,%i,%i'], ...
'info', ['Output ' nch ' settings: ' ...
'[mode, cntl_input, powerup_enable]'], ...
'default', [0, 0, 0]);
if i==1 || i==2
% Outputs 1 and 2 have finer range control than than 3
% and 4
addCommand(this, ['range_' nch], 'RANGE', ...
'read_ending', ['? ' nch], ...
'write_ending', [' ' nch ',%i'], ...
'info', ['Output ' nch ' range ' ...
'0/1/2/3 -> off/low/medium/high'], ...
'value_list', {0, 1, 2, 3});
else
addCommand(this, ['range_' nch], 'RANGE', ...
'read_ending', ['? ' nch], ...
'write_ending', [' ' nch ',%i'], ...
'info', ['Output ' nch ' range ' ...
'0/1 -> off/on'], ...
'value_list', {0, 1});
end
end
end
end
methods
function set.temp_unit(this, val)
assert(strcmpi(val,'K') || strcmpi(val,'C'), ...
'Temperature unit must be K or C.')
this.temp_unit = upper(val);
end
end
end
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