Advantech (USB-4704) for LabWindows

[viktor_morin]

Hi everyone,

I'm using Advantech USB-4704 as a replacing card for our current A/D card which has gone EOL.
Advantech is only "officially" supporting LabWindows, but since they have ANSI_C examples, I have been looking into them.

Except for one line, which i replace everything else seems to be supported:

//wcscpy(devInfo.Description, deviceDescription);
strcpy(devInfo.Description, deviceDescription);

The code runs perfectly using Visual Studio 2017, but not CVI 2015SP1.

Could someone help me out to get this to work with LabWindows?

Or is there another approach that is better? Thinking of maybe wrap the example that builds in VS2017 and export the DLL to CVI?

I have attached both VS2017 and CVI example, where one works and one fails.

You would need to install Advantech SDK to make it work, I assume (http://downloadt.advantech.com/download/downloadsr.aspx?File_Id=1-1MENNIH).

Thanks

[OuadieAdnan]

Dear I have the some things do you solved please ?

[viktor_morin]

Hi, I manage to solve my problem.

I used the example code for C++ and built a "wrapper-dll" that I now can use.

[OuadieAdnan]

Thank’s for your reponse dear

Can you bring to me the dll that you built  and the exemple which helped you to do it 

[viktor_morin · Accepted solution]

I have uploaded both the Visual Studio example and LabWindows example where we use the DLL/Wrapper.

Welcome!

[OuadieAdnan]

Dear viktor_morin,

Please I want to use the USB-5856 board for my application "with inductive input sensors and actuators such as pneumatic output valves". 

So I must use the Read/Write DI and Read/Write DO can you tell me which finction I will need for my application from the bdaqctrl.h

cordially,

[viktor_morin]

Hi again,

The wrapper (DLL) I made for my project looks like following: 

#include <stdlib.h>
#include <stdio.h>
#include "stdafx.h"
#include "bdaqctrl.h"
#include "compatibility.h"
#include "AdvantechWrapper.h"

using namespace Automation::BDaq;

#define        deviceDescription  L"USB-4704,BID#0"
const wchar_t* profilePath = L"USB4704.xml";
const int32	   analogInputstartChannel = 0;
const int32    analogInputchannelCount = 1;
const int32    analogOutputchannelCount = 1;

InstantAiCtrl * instantAiCtrl;
InstantAoCtrl * instantAoCtrl;
InstantDoCtrl * instantDoCtrl;

extern "C"
{
	__declspec(dllexport) void Initialize() {
		DeviceInformation devInfo(deviceDescription);

		instantAiCtrl = InstantAiCtrl::Create();
		instantAoCtrl = InstantAoCtrl::Create();
		instantDoCtrl = InstantDoCtrl::Create();

		instantAiCtrl->setSelectedDevice(devInfo);
		instantAoCtrl->setSelectedDevice(devInfo);
		instantDoCtrl->setSelectedDevice(devInfo);

		instantAiCtrl->LoadProfile(profilePath);
		instantAoCtrl->LoadProfile(profilePath);
		instantDoCtrl->LoadProfile(profilePath);
	}
	__declspec(dllexport) void Dispose() {
		instantAiCtrl->Dispose();
		instantAoCtrl->Dispose();
		instantDoCtrl->Dispose();
	}
	__declspec(dllexport) void ReadAnalogInput(int channel, double *value) {
		instantAiCtrl->Read(channel, *value);
	}
	__declspec(dllexport) void WriteAnalogOutput(int channel, double *value) {
		instantAoCtrl->Write(channel, *value);
	}
	__declspec(dllexport)void WriteDigitalOutput(int channel, int *value) {
		instantDoCtrl->Write(channel, *value);
	}
}

So you should use similar, just change the deviceDescription to your card. You won't need the xml-profile if default settings is okay for you. When I the DLL inside my applicaiton, just take a look at the sample i provided before (LabWindows example project), but more or less, I load the DLL and then execute wanted functions. Just start with Initialize().
Cheers

[F4Y5AL_ighit]

Hi Viktor

Try this:

    memcpy(devInfo.Description, "USB-4751L,BID#1", 15);

or this:

   mbstowcs(devInfo.Description,"USB-4751L,BID#1", 15); // 15 = sizeof("USB-4751L,BID#1")

cheers.