Solenoid Valve with Labview

Hey everyone,
Im brand new to LabView and I am in need of some assitance. Ive attached a picture of my block diagram setup. I need help with making the LabView code in order to help run this setup. I want to use LabView to activate my photoelectric sesnor, which when tripped will activate my solenoid valve immediately. The maximum allowable time between the photoelctric sensor being tripped to the valve opening cannot be greater than 50 milliseconds. I would also like to active my high speed camera 1 second prior to the electric sensor being activated. I have included the parts I am using in a list below. Thanks for all the help in advance.
Solenoid Valve: SV-282 from Omega
Photoelectric Sensor: Comet 14101A6517
Output cDAQ: NI-9472 (powered by external power supply "NI PS-15 24V")
Input cDAQ: NI-9421
Camera: Phantom v7.3 (connected through ethernet)
In summary: with labview, activate camera, activate photo sensor which when tripped will open solenoid valve immediately.
Shervin Aslani
Attachments:
IMG_20130730_142033.jpg ‏2537 KB

You're at the fun stage of the project! You can start to write instrument drivers while (at the same time) learning how to program a state machine.
I LOVE starting projects I hate the tedium of finishing them... until they're done, then I love it again.
Jim
You're entirely bonkers. But I'll tell you a secret. All the best people are. ~ Alice

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I need to control a solenoid operated direactional valve in hydraulic system with Labjack U12. I am using three relays but need some help on the vi. like which instrument drive I need to use etc....
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Have you got the relays working yet. Do some initial testing with LJlogger to make sure hardware is controlling the relays as expected. If you need further help with this step, provide a link to electrical details for the relays and describe how you have the relays connected to the U12.
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Solenoid Control with LabVIEW

Hey everyone,
Im brand new to LabView and I am in need of some assitance. Ive attached a picture of my block diagram setup. I need help with making the LabView code in order to help run this setup. I want to use LabView to activate my photoelectric sesnor, which when tripped will activate my solenoid valve immediately. The maximum allowable time between the photoelctric sensor being tripped to the valve opening cannot be greater than 50 milliseconds. I would also like to active my high speed camera 1 second prior to the electric sensor being activated. I have included the parts I am using in a list below. Thanks for all the help in advance.
Solenoid Valve: SV-282 from Omega
Photoelectric Sensor: Comet 14101A6517
Output cDAQ: NI-9472 (powered by external power supply "NI PS-15 24V")
Input cDAQ: NI-9421
Camera: Phantom v7.3 (connected through ethernet)
In summary: with labview, activate camera, activate photo sensor which when tripped will open solenoid valve immediately.
Shervin Aslani
Solved!
Go to Solution.
Attachments:
IMG_20130730_142033.jpg ‏2537 KB

I'm confused as well. Why are you sending a signal to a sensor??? Provide power to the sensor all the time and read the digital output from it. Then, send a signal to the solenoid to activate whatever physical action you require when the sensor is triggered.
EDIT: One more thing. Since LabVIEW lacks any sort of time machine functionality you're going to have a fundamental problem activating your camera 1 second PRIOR to your trigger signal. Usually the answer to that sort of problem is solved by recording the video data constantly in a ring buffer and then when you receive your signal you grab the data.
Using LabVIEW: 7.1.1, 8.5.1 & 2013

How to actuate 20 solenoid valves using labview

I want to perform an action of detaching materials from a fixture by actuating 20 pneumatic pistons controlled by 20 solenoid valves.
If the valve is actuated the piston moves and stays in the location for 1 sec and then return back. Each of these cylinders should be able to be controlled separately.
Kindly provide me with the necessary equipments i should buy.
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Could you specify any card that will meet the spec.?
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With the equipment that you have, a good choice would be Opto-22 series for the G4 series of the Opto-22. Select the screw terminal base and an ODC module appropriate to your power/voltage requirements. this will use the TTL digital output to control a power solid state relay. If you look to the other signal conditioning products from NI, they will allow you to do the same thing as well.
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VI to control solenoid valves with NI 9472 and 9171

Hello,
I am working on a prototype composite manufacturing project wherein I am trying to connect four 24 VDC solenoid valves to a NI digital module 9472 with a USB DAQ Chassis 9171. The solenoids will be used to control several pneumatic air pistons. I have so far used NI Max and an NI example code "Digital - SW-Timed Output" to turn one valve on.
Now I am looking for some help to build a VI accomplish following things:
1. How do modify the existing VI to make it turn off the solenoid too. As the way I have it now is when I execude the code, the solenoid is continously on.
2. If I connect 4 such solenoids, and want to turn them on in a pattern such as "TFFF,FTFF,FFTF,FFFT"?
3. I would want to put a delay time between the 4 operations say 30 s, as a user input in the front panel.
4. I want this whole operation to repeart "n" times, as another user input.
5. Last thing, any changes I make to the VI, and save it form File -> Save/Save as, it reverts back to the original version. I am working from the default NI system folder where all the examples for "Digital Output" are saved. Also whenever I try to copy it to another location, it wont run as it keeps on searching for the other accessory VIs. I have tried to save it as a project, but even that doesnot help.
I have enclosed screen grabs of the VI which works for one solenoid, and the original VI (it wont let me save the modified VI properly).
I am very new to coding with NI, so any help/guidance will be greatly appreciated. Thanks.
Vikram

Hi vdey
I hope you are doing great. Regarding your questions about the digital outputs generation, I did my research using the same example of Digital -SW Ouput VI.
I did not change anything of the code except for some few changes.
Ok, first question
Using this VI example I am able to control the outputs and when I used one of the booleans controls I am able to turn on and off the different outputs of the modules.
Second question
If you want to create an automatic pattern with the outputs of the module, I think you can use a array with Booleans premade it by you combined with a state machine.
Third question.
Again, with a state machine you can use a delay function and instead of using a constant for the input you can create a control for it.
Fourth Question
Maybe you can try with a Foor loop with a control attached to the N terminal to control the times you want to do this action.
Fifth Question
Try to copy the folder where are located these examples and save this new folder in a new location and try to work over this new copy.
I am attaching somes links that could be useful to you;
Sintax of multiple channels
http://digital.ni.com/public.nsf/allkb/9A2AF5E10E0C893386256FE8006807DF?OpenDocument
Tutorial States Machines
http://www.ni.com/tutorial/7595/en/
Warm Regards.

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Nic,
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Greetings from Germany
Henrik
LV since v3.1
“ground” is a convenient fantasy
'˙˙˙˙uıɐƃɐ lɐıp puɐ °06 ǝuoɥd ɹnoʎ uɹnʇ ǝsɐǝld 'ʎɹɐuıƃɐɯı sı pǝlɐıp ǝʌɐɥ noʎ ɹǝqɯnu ǝɥʇ'

Controlling Solenoid Valves for a water level application with LabVIEW:

Hello,
I am trying to control the water level in a tank using solenoid valves with LabVIEW.
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The equipment that I have is:
Ultrasonic sensor: http://www.amazon.com/Ultrasonic-Module-HC-SR04-Distance-Arduino/dp/B004U8TOE6
Solenoid Valves: http://www.ebay.com/itm/ws/eBayISAPI.dll?ViewItem&item=290763981675&ssPageName=ADME:LU:US:3160
3 buckets.
I need some ideas on how I can complete the rest of this project. Thank you in advance! Please see the attached vi.
Attachments:
Sensor.vi ‏28 KB

Thinking off the top of my head, if it were me, I'd start with the master-slave design pattern.
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Mike...
PS: This is homework right?
Certified Professional Instructor
Certified LabVIEW Architect
LabVIEW Champion
"... after all, He's not a tame lion..."
Be thinking ahead and mark your dance card for NI Week 2015 now: TS 6139 - Object Oriented First Steps

Can I get stepped out put voltage signal for controls from the BNC with Labview?

Hi!
I am new user to NI Labview. I am working in controls applied in Combustion sciences. I want control the Solenoid valve ( Jefferson made,230 V, 11 W) in stepped manner. BNC (2110) is used for the input signal (Piezoelectric pressure transducers) and output signal. The maximum out put voltage from BNC is 5 V. Can I get the out put voltage in stepped and increasing order to ensure the better controls of the solenoid valve?
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With Regards,
Ganesh

Just having the same issue there, which is real not fun, I have not tried to contact them, but looking at your experience I am not sure if I should.
My key comes from the back of a laptop o so I guess that would be a W7
OEM, and that could explain why you can't download a ISO from their website, would that also your case ?
Also could it be because we are attempting to get the ISO after the product became EOL ?
http://windows.microsoft.com/en-us/windows/lifecycle
Maybe I will give a go with the customer care people and maybe I will get a right answer ;)
Will keep you posted

Best configuration for Solenoid Valve control

Hello everyone,
I'm really new with everything that concerns Controllers or Relays so any help would be very appreciated.
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Solved!
Go to Solution.

Yes, that combination should be adequate. The ULN2003 is designed for exactly that type of application and works well.
Usually in English we refer to power supplies when talking about devices to convert ac power line voltages to lower voltage DC.
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Solenoid valve

how can i let output signal from PIC16F887(5v) shut off the solenoid valve with 24v? . i dont want to connect the solenoid from another power source. i want the same 5V DC for the PIC to be amplified uo to 24 volts. because when the solenoid is connected to the power,it will shut off as it is normally open type. what is the best component can step up the voltage to 24v?
example: FET,TRANSISTOR,OUPTOCOUPLER, LINE DRIVER,RELAY,.....

duplicate post
Please stop the thread spamming. I have no idea why you are asking about PIC products on the NI boards.

Solenoid valve interface with labview

Hi, currently i have a solenoid valve (NVZ110) with 24Vdc , "+" & "-" terminals) and I have:
CFP-DIO-550
CFP-AO-200
CFP-AO-210
CFP-AI-112
My question which module should I use to open and close the valve? Also, I couldn't find a tutorial on how to create a simple vi to control this valve using LabView. Does someone have a simple example VI?
Solved!
Go to Solution.

Here is the manual:
http://www.ni.com/pdf/manuals/371324c.pdf
The 550 only accomdates DC outputs, that may explain why the valve is not actuating. Hopefully you did not wire a 24VAC source to the 550, it may be damaged if you did.
-AK2DM
~~~~~~~~~~~~~~~~~~~~~~~~~~
"It’s the questions that drive us.”
~~~~~~~~~~~~~~~~~~~~~~~~~~

Linear mixing gradient with solenoid valves

Hello Everyone,
I have finally come to a problem in labview that is over my head. Until now I have been making small programs using MC DAQ-USB 1208 or USB 1608 to run my programs and have gotten pretty good at reading block diagrams but still struggle with making them.
I am looking to control a series of solenoid valves of a proportional valve to dispense two liquids to create a linear gradient. For those of you not familiar with how a proportional valve works, if you programmed it to deliver 75% of A-solvent and 25% of B-solvent, the valves would open A-B-A-B-A-B… in a 75:25 ratio of opening times. To deliver a gradient like i am wanting, the ratio of the opening times of the various proportioning valves will change during the gradient to change the overall concentration.
I have done all the math which i have attached below and have included a setup of my system as well. There will be two pumps, each with a different flow rate. One pump, P2 will be used to pull the gradient from the proportional valve into a loop of known volume. once the loop is filled, a 6 port 2-way valve will be switched and using the second pump, P2, the liquid will be pushed though the outlet.
Below I think i have included everything that will be on the project window. There will be a series of steps with each step having time and %B as inputs (we can ignore pump flow rate because it will be a constant). Those inputs translate to the picture below to generate the slope. There are also a series of constants listed to the right that will not change throughout gradient formation. The equations of the program are listed at the bottom and if someone could assist me in getting this program off the ground that would be amazing.
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Attachments:
2015-05-22 12-11-16.pdf ‏529 KB
Screen Shot 2015-05-09 at 1.35.32 PM.png ‏23 KB

Attached is the VI for what I have come up with for my project. I have a few questions. I have a circuit that I have attached that has a relay controled by a DO on my DAQ. I am using MC USB-1208LS. I have the VI set up where i am tracking the percent A and B along the gradient time but I am wondering how to take a snapshot of this at the duration of time/cycle (~4 seconds) and tell that to send a signal to the DO. The relay I am using is axicom fp2 d3023 and will have solenoid A open when given signal and closed when it isnt and vise versa for B. I have attached the circuit for the solenoids (already tested) and A will be in pin 2 on the relay and B in pin 4 and the 5 V signal from the DAQ is getting amplified to 12V and in pin 3. If someone could help me with how to send a signal (it would be a snapshot of the %A and that would be multiplied by the time per cycle to tell it how long to give the signal for in milliseconds. That would get repeated for the entire duration of the gradient (or total number of cycles).
Attachments:
Screen Shot 2015-06-20 at 7.55.29 AM.png ‏23 KB
Time Per Cycle v2.vi ‏43 KB

NI 9472 with 9171 to control a 24V Solenoid Valve

1) I am trying to connect a solenoid valve to a NI digital module 9472 with a USB DAQ Chassis 9171. I have verified the voltage signals and used NI Max to turn the valve on and off. Now I am trying to find a VI to do this operation i.e. turning on and off one solenoid valve.
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PH control with solenoid valve

Hello everyone, I want to make pH control in biogas production. Many reference said that the optimum pH for biogas production is ranges from 6.8-7.4. I want to use acid and base reagent as an addition when pH value exceed its ranges. The problem is that I only have a solenoid valve (on-off valve) so I think I can't use PID or Fuzzy controller. Can you tell me how to make controller that suitable for this system?Thank You
Regards
juventom

I found some idea for this case (attachment), but the VI still has a problem. When pH value exceed the limit and exceed the limit time (t1) I want to make open valve time (t2) and mixer time (t3) undisturbed (must appropriate with state diagram) but the problem is when pH value (slider) return to allowed limit while in valve&mixer state, it immediately return to initial state (check pH value). Can you help me fix this VI? Thank You
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Regards
juventom
Attachments:
pHStateDiagram.JPG ‏36 KB
pHControl.vi ‏60 KB

Solenoid Valve control with DAQ

Hello everyone,
I would like to control 6 solenoid valves (6-24 VDC, 6W) and a small solenoid pump (12VDC) from a NI USB-6212 DAQ. I have been thinking about using a ULN2803 integrated circuit to increase the DO signal coming from the DAQ to 12VDC and use that to power the solenoids. Would this work?
Any help would be greatly appreciated.
Thanks!

The 2803 will work, but you will need more than one since the max current through the die is 2.5A total. At 12V, your solenoids will draw 500mA each, that times 6 solenoids is 3A total. Also note that 500mA is the upper limit of the ouput drive, you may want to parallel two drivers together for each pump (just to be safe).
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-AK2DM
~~~~~~~~~~~~~~~~~~~~~~~~~~
"It’s the questions that drive us.”
~~~~~~~~~~~~~~~~~~~~~~~~~~

Solenoid Valve with Labview

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