Connecting encoder DH053 to USB 6221 DAQ

Please I want to connect encoder DHo53-060e3n01 to USB-6221 DAQ to count pulses up and down and I don't know the right connections
please help
thanks,
ahmd
Attachments:
encoder dh053.jpg ‏26 KB

Hi bowoods,
I'm not exactly sure which document you needed, but below I've listed a few resources that might be able to help you connect an encoder to a multifunction DAQ.
The first link below describes in general how you would connect an encoder to a counter
http://digital.ni.com/public.nsf/allkb/B3945A72AE53D1B086256EF7007C4D0D?OpenDocument
The second link is a forum post that talks about connecting a specific quadrature encoder to an M Series DAQ card. In it there are several links to articles on connecting encoders in LabVIEW
http://forums.ni.com/t5/Multifunction-DAQ/What-do-I-need-to-connect-a-quadrature-encoder-to-a-M-seri...
Gabriel M.
Product Marketing Engineer - Academic Courseware
National Instruments

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I'm new to NI and I designing a system that has a YET servo controller and a USB-6221. I need to connect the encoder output signal from the YET to the USB-6221 and not sure how.
The YET servo controller has three encoder output channels each having two signals. Phase A (A and A-not), Phase B (B and B-not), and Phase C(C and C-not).
I believe I need to wire Phase A from the YET to PF 8 (A) on the USB-6221, Phase B from the YET to PF 10 (B) on the USB-6221, and Phase C from the YET to PF 9 (Z) on the USB-6221. Is this correct?
Can anyone help me please?
Thanks,
David

Hi David,
Welcome to the NI forms. Your connections are correct for
the USB-6221 (I assumed you were using the pinout, and not BNC). There are a
few ways we can double check this – one way is to create a task in Measurement
and Automation Explorer (MAX), as it will tell you which pins to connect your
wires to (see ‘MAX Configuration.jpg). We can also bring up the pinout for the
device by going to MAX and then right-clicking on our device under the ‘Devices
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Device Terminals Help (See ‘NI-DAQmx Device Terminals Help_USB_6221.JPG’).
Hope this helps!
David L.
Systems Engineering
National Instruments
Attachments:
MAX configuration.JPG ‏57 KB
NI-DAQmx Device Terminals Help_USB_6221.JPG ‏114 KB

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I was just wondering if it is possible to set up a lock-in amplifier with a USB-6221 DAQ system.
Thank you.

Hi johndoe117,
Because the USB-6221 does not have dedicated ADCs for each channel, it is not recommended that we try and implement a Lock-In Amplifier. I would recommend using one of the DSA cards instead. I have included a KnowledgeBase article below that details what we look for when we want to implement a Lock-In Amplifier for some further information you may find helpful.
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This tutorial should step you through the basic process of configuring the device and connecting the thermocouple:
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http://www.maplin.co.uk/p/1mw-3v-red-laser-module-le07h
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can the USB NI DAQs be used for process control,eg.closed loop? or is too fast.

Hi mho,
1.usb is very high speed that is correct.Better you can choose PCI DAQ.But thats upto you.
2. see this:-
http://sine.ni.com/nips/cds/view/p/lang/en/nid/14136
3.If Matlab support TCP/IP, that could be an option.
see Another idea: http://digital.ni.com/public.nsf/allkb/244A37667BD7CBCE86257520007F937B
Another simplest way to do it (assuming you running Windows) is to use a Matlab script.
If both programs running on different systems:-
Most simple and slow - Create two VI's with shared variable on both machines, and use a matlab script to
share data. (this makes matlab some kind of "slave").
More advanced but still relatively slow (Create two VI's with shared variable, on the Matlab machine build the .NET
dll, and it can be used on Matlab too ( at least at 2010b version, earlier version support only COM).
Create TCP/IP connection between two comps.
There is "out of the box" NI products, that communicate with Simulink models.You please do a simple search on that...OK
I think this link is also helpful for you:-
Procedimiento para la interface entre LabView 2009 y Matlab 2009b.pdf 1128 KB
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Attachments:
Untitled.jpg ‏130 KB

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Connecting encoder DH053 to USB 6221 DAQ

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