Thorlabs Linear Stage LTS150 Long Travel Stage with Matlab

Hi,

I have some trouble getting this stage to work in Matlab.

It works using the Throlabs App---Hence hardware is ok

I am able to read the serial number of the linear stage----> The test computer does see the hardware.

But when trying to connect to the device---Matlab thinks the stage is not connected.

Anyone else may have found a solution for this issue?

Thanks,

------------------- Code for future reference --------

% Load .dll files associated with the Thorlabs motor

NET.addAssembly('C:\Program Files\Thorlabs\Kinesis\Thorlabs.MotionControl.DeviceManagerCLI.dll');

NET.addAssembly('C:\Program Files\Thorlabs\Kinesis\Thorlabs.MotionControl.GenericMotorCLI.dll');

NET.addAssembly('C:\Program Files\Thorlabs\Kinesis\Thorlabs.MotionControl.IntegratedStepperMotorsCLI.dll')

%NET.addAssembly('C:\Program Files\Thorlabs\Kinesis\ThorLabs.MotionControl.VerticalStageCLI.dll')

import Thorlabs.MotionControl.DeviceManagerCLI.*

import Thorlabs.MotionControl.GenericMotorCLI.*

import Thorlabs.MotionControl.GenericMotorCLI.ControlParameters.*

import Thorlabs.MotionControl.GenericMotorCLI.AdvancedMotor.*

import Thorlabs.MotionControl.GenericMotorCLI.Settings.*

import Thorlabs.MotionControl.IntegratedStepperMotorsCLI.*

%import ThorLabs.MotionControl.VerticalStageCLI.*

% Generate device list

Thorlabs.MotionControl.DeviceManagerCLI.DeviceManagerCLI.BuildDeviceList() % Build device list

serialNumbersNet = Thorlabs.MotionControl.DeviceManagerCLI.DeviceManagerCLI.GetDeviceList() % Get device list

serialNumbers = cell(ToArray(serialNumbersNet)) % Convert serial numbers to cell array

serial_no = serialNumbers{1} % shows correct serial number ('45357364')

device = LongTravelStage.CreateLongTravelStage(serial_no);%The output of this line must be suppressed

device.Connect(serial_no);

----------------

Answer 1

[Garmit Pant]

Hello Raha

I understand that you are trying to connect a Thorlabs LTS150 to MATLAB using .NET functions but you are unable to establish the connection.

You can use the complete name of the module you want to use, i.e. ‘Thorlabs.MotionControl.IntegratedStepperMotorsCLI.LongTravelStage’, to call its functions. Please refer to the following code snippet:

clc; 
clear all; 

%Set up paths of the dll files required 
MOTORPATHDEFAULT = 'C:\Program Files\Thorlabs\Kinesis\'; 
DEVICEMANAGERDLL= 'Thorlabs.MotionControl.DeviceManagerCLI.dll'; 
GENERICMOTORDLL= 'Thorlabs.MotionControl.GenericMotorCLI.dll'; 
INTSTEPPERMOTORDLL= 'Thorlabs.MotionControl.IntegratedStepperMotorsCLI.dll'; 

%Load .dll files associated with the Thorlabs motor 
asm_dev = NET.addAssembly([MOTORPATHDEFAULT, DEVICEMANAGERDLL]); 
asm_gen = NET.addAssembly([MOTORPATHDEFAULT, GENERICMOTORDLL]); 
asmInfo = NET.addAssembly([MOTORPATHDEFAULT, INTSTEPPERMOTORDLL]); 


% Generate device list 
Thorlabs.MotionControl.DeviceManagerCLI.DeviceManagerCLI.BuildDeviceList();  % Build device list 
serialNumbers =Thorlabs.MotionControl.DeviceManagerCLI.DeviceManagerCLI.GetDeviceList(); % Get device list 
serialNumbers = cell(ToArray(serialNumbers)); % Convert serial numbers to cell array 


if isempty(serialNumbers) 
    short_warn('No Thorlabs stages found!'); 
    return; 
end 

defaultSerialNr = '45357364'; % Correct Serial Number 
deviceFound =  any(strcmp(serialNumbers,defaultSerialNr)); %Try to check if the device is found 


if deviceFound 
    DeviceNet = Thorlabs.MotionControl.IntegratedStepperMotorsCLI.LongTravelStage.CreateLongTravelStage(defaultSerialNr); %Create the .NET object 
    fprintf('Device found...'); 
else   
    short_warn('Device not found!'); 
    fprintf('Devices available:\n'); 
    fprintf('%s\n',serialNumbers{:}); 
    fprintf('Expected: \n'); 
    fprintf('%s\n',defaultSerialNr); 
    return; 
end 

fprintf('connecting...'); 
DeviceNet.ClearDeviceExceptions(); 
% Clears the the last device exceptions if any. 

DeviceNet.ConnectDevice(defaultSerialNr); 
DeviceNet.Connect(defaultSerialNr); 
% Connects to the device with the supplied serial number. 

For further understanding, you can also refer to ‘Thorlabs.MotionControl.DotNet_API.chm’ at ‘C:\Program Files\Thorlabs\Kinesis’

I hope this helps!

Best Regards

Garmit

[james ingham]

Hi,

I hope you can help! I am trying to use the same stage as above but I get the following error when I try your code:

Message: Could not load file or assembly 'file:///C:\Program Files

(x86)\Thorlabs\Kinesis\Thorlabs.MotionControl.DeviceManagerCLI.dll' or one of its dependencies. An attempt was made to load a

program with an incorrect format.

Source: mscorlib

HelpLink: None

Am i doing something stupid? Any help would be much appriacted! The stage works in kensis so I know everything is working on that front.

James

[james ingham]

Sorry I figured this out as I had the wrong drivers. I redownloaded the correct thorlabs drivers and I get past this issue now. I still havent worked out how to acutally set and control the stage but I can connect to it at least thanks for your previous answers.

Answer 2

[thaipadath johnson]

im new to this. i am trying to figure the code and the way to connect the Thorlabs LTs300/M , .can anyone help me with this .