how do i install and configure the hardware for SCB-68 that I am using with a DAQCARD1200

[johnsimon]

Hello to all,  I have an old system with a laptop running windows 95, LABVIEW 5.0, and using a DAQ card 1200.  THe system was functional with programs running satisfactorily but I lost the DAQ signal conditioning box.  Now I have  a SCB-68 that I would like to use for signal conditioning.  I have never used the daqcard with a SCB-68 before and was trying in vain to follow the directions for the  Control Panel "add new hardware" , then selected MIO-16X, and "NEXT".  When completed, there was a conflict which disabled the MIO-16X  when I  looked at the device manager.

I , maybe in error, selected the MIO-16X driver since the SCB-68 device has a  similar number written on the cover that reads:  "MIO-16E Series".  

Can anyone coach me through the hardware installation procedure for these two devices, i.e. DAQ card 1200 and SCB-68?

Also, when I click: NI DAQ Configuration shortcut on my desktop, I get the error message:   the WDAQCF32.exe file is linked to missing export NISSM32.DLL: GetDevNumber. 
And a second window below that reads:  C:\WINDOWS\SYSTEM\WDAQCF32.EXE  
                                                                    A DEVICE ATTACHED TO THE SYSTEM IS NOT FUNCTIONING.

My application involves reading some 0-10V  signals from two tranducers that I bring into the SCB-68.

Thanks,
JohnSimon

[Sarah_Coleman_NIUK]

Hi JohnSimon,

The SCB-68 is just a signal accessory so it doesn't need to be configured in windows. You just connect it via a cable to your DAQCard, connect your transducer then instruct your software to read off whatever channel you've connected your transducer to.

Try adding the device to the Measurement and Automation Explorer by right-clicking on Traditional NI DAQ Devices under the Devices and Interfaces tree. From the right click menu, select Add Device... and follow the directions.

If that doesn't work, and the device is missing from the Windows device manager, a problem may have been introduced when you tried to manually install your hardware. Remove your DAQCard and do a repair on NI-DAQ, then plug your card back in.

When you have repaired your software and reinstalled your hardware, try adding the device to the Measurement and Automation Explorer again.

If this doesn't work you may need to remove NI DAQ completely and reinstall it.

Good luck with it,

[Kenn_N]

JohnSimon,

Thanks for contacting National Instruments Support.  Sarah is correct in stating that the SCB-68 does not need to be configured in MAX.  However, I am a bit confused how you have this connected to your system.  The DAQ 1200 is a 50 pin device that you would need an adapter to get it to work with the SCB-68.  You mention directions that you were following, did they come with the SCB-68?  This may be talking about the DAQ card you are going to connect  the SCB-68 to, but the SCB-68 itself. 

There is a CB-50LP that you can use with the DAQ 1200 that is a direct connection with the 50-pin ribbon cable. 

If you are still in need of better signal conditioning than the SCB-68 can provide we have many other options that we could discuss.  Our CompactDAQ system has modules that provide signal conditioning for various transducers, and the SCXI platform also has a mutltude of options for signal conditioning.

Regards,

[johnsimon]

Dear Kenn N and Sarah,

Thanks for the advice from both of you.  I am beginning to understand this better.   I believe that the computer and DAQCard-1200 that I am presently using was previously connected via a CB-50LP connector, and I may need to try that again if I cannot get the SCB-68 to work.  

Following Sarah's remarks, I verified that the DAQCard-1200 is indeed listed in my device manager under Data Aquisition devices, and when I click on the DAQCard-1200,  the screen reads: "This device is working properly". 

The cable to connect the DAQCard to the SCB-68 is one I purchase from NI a few weeks ago.  It was recommended to me that I use: PR-50-50F,1M (Item number 182799-01) and using a 68F-50M  MIO Adapter (183139-01,  68 pin female to 50 pin male).  There is only one way to plug this cable into the adapter and DAQCard.

However, I still cannot read any analog voltage signals from my tranducers.  For example if I run a "voltage reading vi" using device 1 and channel 2 (Which should be at pins 64 (AICH2) and 65 (AIGND),  I receive random voltage signals between  -1 and 4.00.  

Another interesting fact is that the I/O pin assignments listed in the DAQCard-1200 Users Manual does not seem to have a relationship to the pin assignment on the cover of the SCB-68 "Quick Reference Label".

Still another interesting fact is that the scb-68 qick reference card shows AICH0 to be assigned to pin 68.  How can this be if I only have 50 pins on the DAQCard -1200? 

Could it be that I purchased the wrong cable?    How can I test the DAQcard-1200 using a voltmeter and voltage source?

Thanks for the help to you and Sarah both.  Looking forward to your advice.

Regards,
JohnSimon

[Sarah_Coleman_NIUK]

Hi JohnSimon,

The pin diagram for the SCB-68 will be different to that of your card as your card has only 50 pins while the SCB-68 has 68 pins. Here is a cable map for a 68 pin connector to a 50 pin connector. It should tell you the pins you need to connect your signals to.

I hope this helps.