CFieldPoint Relay Output?

Does there exist a relay output card for Compact FieldPoint - I was unable to locate one online...? I need to support 24VAC outputs.
Thanks!

The cFP-DI-330 has 8 Discrete inputs that can be used with input signals that range from 5 - 250 V AC or DC. The threshold level (the level at which an "On" signal is seen) will vary with the frequency. More information on the input levels can be found in the Operating Instructions for the module at the following link:
http://digital.ni.com/manuals.nsf/websearch/CAF2D6498AE91BA386256C620079544D?OpenDocument&node=132100_US
Regards,
Aaron

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Forcing Relays via rs232

Hello everyone,
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Hi Sebastian,
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NI 6008 to control I/O Solid State Relay Omega DCO5-C

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I'm not expereinced, so the task of implementing a digital buffer circuit sounds daunting.
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Instrument driver for ICS 4864 GPIB to relay interface needed.

This unit has 16 relay outputs and 8 TTL inputs and I intend to use it to drive a 6 to 1 RF coaxial relay as an antenna switch.
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Search Results: Serial Loopback Test
Ray K
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uranus999
Attachments:
RelayOutput(Analog output) (trial).vi ‏19 KB

Dear Lynn,
I understand that it might be difficult to understand with looking at the Nanonis sub vi's. Sorry about that. If I upload a PDF of the block diagram, would it help at all?
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FPGA 7831R Damage

I incorrectly connected 13v to some DIO pins of my FPGA 7831R card and now they do not operate. The manual says 7v max for DIO.
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Hi,
If the board it self is damaged, I would advise contacting your local NI Branch to organise a return and repair. They will be able to process this for you. However, if you go ahead with trying to repair it your self, it might void the warranty.
I believe you are in the UK, please find the contact details here.
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www.renishaw.com

Charging and discharging multiple capacitors

Hello,
We have a PXI system running LabVIEW 8.5 on Win XP. We want to charge and discharge a bank of capacitors in a very controlled manner. I was wondering if anyone else has performed a similar task and has some examples of the code to control a capacitor system. We have a PXI-6225 DAQ card for our analog input from the V and I sensors, and a PXI-2567 relay output card to control the charge and discharge of the cap bank.
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Hi Munk,
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Regards,
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Digital Multimeter Home

Labview interfacing with NI cDAQ-9172

I currently have access to a NI cDAQ-9172 with a NI-9205 AI input
board and a NI-9481 relay control board. I basically have the DAQ
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Hello Stanley,
Let me try to address your questions in order:
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including Finite State Machine, Master/Slave and Producer Consumer.
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Message Edited by Matt A on 09-17-2007 07:37 PM
Matt Anderson
Hardware Services Marketing Manager
National Instruments
Attachments:
Generate NI-DAQmx Code.JPG ‏16 KB
Design Patterns.JPG ‏73 KB

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CRIO; To FIFO or no to FIFO?

That is my question.
My project is using a cRIO-9073 There are three analog input modules. Two analog output modules, and one relay output module. All are running in Scan Mode.
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Can anyone with some experience tell me why this method may or may not have problems?
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Patrick Allen
Solved!
Go to Solution.

Patrick,
If the samplings rates of your application are as you stated in your post, there really is no need to switch to FPGA mode. Scan mode should be more than sufficient to get you all the data. Keep in mind you can go up to about 1Khz rate using Scan mode (given that your modules are capable of those rates). Also, using the Scan mode I/O variables are by far the easiest way to get your data over to the host. You actually just drag and drop the IO variables corresponding to your modules' physical channels directly into your PC Host VI. Overall, I don't see any problems with your design so far, but at the same time, you did not elaborate too much on the requirements of the project.
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Using NI CompactRIO Scan Mode with NI LabVIEW Software
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Safari: Why does download stop with timeout?

Or when I change apps? sure would be nice if I could do a download in the background, while doing other things.

We have already placed a discreet button on the panel that is connected to one of the unused relay outputs. When the modules lock up, pressing the button has no effect on the output. We can try a button connected to the outputs on the counter module and see what happens. Would re-installing the firmware of the 1601 possibly help? I don't suspect a hardware problem with the relay mods, we have 3 in the bank and all 3 lock up and they worked fine before the 1601. The 100Mbs led is on on the 1601, is it possible that is too fast? Can we change a setting and force 10Mbs or would this make a difference. We have the firewall settings disabled in Windows, are there any other settings pertaining to the network that we can try? Exiting lookout and then starting it again usually re-establishes connection, is there some way to put a button on the panel and connect it to the command to reconnect or poll (if there is such a thing)? We are at a loss! So much for plug and play!
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VB6 and compact fieldpoint

I have a request to add 4-20 mA and relay outputs to an existing VB6 application using compact fieldpoint. Is VB6 still supported by the compact fieldpoint drivers/software, and if so, what is the recommended interfacing approach?
Thanks,
-Scott Hein
Diablo Analytical, Inc.

Scott,
There does not appear to be nay reason why you cannot use VB6 with compact FieldPoint. The implementation of your application should be the same for FP and cFP. Here are some articles that reference this:
Can I Use Visual Basic with FieldPoint?
FieldPoint Optomux Programming Reference Help
Best,
National Instruments
Applications Engineer

Sharing ethernet fieldpoint

We need to build a redundant data acquisition system with 2 PCs, one of them would intervene whenever the other fails.
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Paolo
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You can call an FP from 2 different PCs at the same time with no problems. You will need to determine which PC is the master so that the other PC will avoid setting outputs on the FP when it's not a master. You can place some code on the FP which will decide which PC is the master and inform the PCs.
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Try to take over the world!

Safe Shutdown of cRIO when Removing Power

I'm wondering how to manage the safe shutdown of a cRIO application on a portable unit where the user will be removing power (probably via an physical power switch) during normal operation. Normally, I would design an application with a Initialize_Running_Shutdown state machine, where the shutdown is initiated by the HMI sending a shutdown command, but this will not be the case here.
On a side note, I've also be wondering how to deal with this during extended power outages (once UPS power runs out, the control system dies).
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--CLD--
LV 6.1, 8.6.1, 2011 SP1, 2012 SP1

Modified CRBO lead to serious errors

Hi Guys,
I am new to labview and I was playing around with labview file and accidently changed the CRBO for control relay output block to a pushbutton,now I cannot/ dont know how to revert it back.
Now Labview is showing many errors,like "subVI" not executable,polymorphic sub VI is broken.I have no cluse what these means.
I am using labview 2013.
I am using labview 2013 as a dnp3 master to some sel relays.
I made this dnp3 file by modifing the example dnp files form NI.
Pls help me get this setting back.I have also attached an image regarding the same and also the labview file.
Do I have to reinstall Laview completly to get the old settings back.I am quite sure the files I made are working fine because I had checked it before trying to modify the CRBO(trying to make it look simple)
Please Help mE
Leon Koshy
Attachments:
crbo changed.jpg ‏136 KB
Master_AI_vol_freq_trialLLOP.vi ‏45 KB
plethora of errors,dnp3 master blocks not working.png ‏262 KB

Hi Leon,
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The VI you attached opens with no error. It's executable.

CFieldPoint Relay Output?

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