Voltage out from parallel port

Hi there,
I want to use the parallel port to run a relay.
I do not understand the example given by labview. I also read the forum but I did not see what I am looking for.
I am kindly asking if some one can write a small program ( I use labview 8.5) so I can give a 5v out say to pin #2.
Thank you in advance

vlonjati wrote:
I do not understand the example given by labview. I also read the forum but I did not see what I am looking for.
I am kindly asking if some one can write a small program ( I use labview 8.5) so I can give a 5v out say to pin #2.
Please tell us more why you struggle, this is not good enough
Besides which, my opinion is that Express VIs Carthage must be destroyed deleted
(Sorry no Labview "brag list" so far)

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Aquerir from parallel port with labview

I want to aquerir digital data from parallel port of the PC then representing them on a graph with labview.
How can i do that ?
finaly thnx.

You can use the port in and port out VIs found in the Advanced>Port I/O palette. For an example check out 'Parallel Port Read and Write Loop.vi'.
Using LabVIEW: 7.1.1, 8.5.1 & 2013

DFM@LMS4.0.1: lots of Voltage meassage from 10GE ports

Hello,
We got suddenly a lot of Voltage faults in DFM from 10GE ports at our VSS Core. Communication is not affected.
All other devices show voltage in a valid range and the VSS before this night as well.
An "shut / no shut" of the interface doesnt help, CLI confirms the problem, see below.
What does it mean? What can we do that this faults disappears?
fli_rie_core254#sh interfaces transceiver switch 1
Transceiver monitoring is disabled for all interfaces.
If device is externally calibrated, only calibrated values are printed.
++ : high alarm, + : high warning, - : low warning, -- : low alarm.
NA or N/A: not applicable, Tx: transmit, Rx: receive.
mA: milliamperes, dBm: decibels (milliwatts).
                                         Optical   Optical
            Temperature Voltage Current   Tx Power Rx Power
Port        (Celsius)    (Volts) (mA)      (dBm)     (dBm)
Te1/1/1       33.8       0.00      45.7 --   -1.4     -32.2 --
Te1/1/2       32.3       0.00      42.3 --   -1.5      -1.2
Te1/1/3       31.5       0.00      42.0 --   -1.5      -2.8
Te1/1/4       28.7       0.00      43.3 --   -1.4      -2.7
Te1/1/5       29.7       0.00      43.0 --   -1.5      -2.7
Te1/1/6       28.4       0.00      45.8 --   -1.4      -4.9
Te1/1/8       26.2       0.00      43.2 --   -1.4     -37.0 --
Te1/2/1       30.2       0.00      41.3 --   -2.1     -33.0 --
thx for help in advance,
Steffen

No,
Have your question something to do with the initiated discussion?
Von: cassiefang
Gesendet: Freitag, 17. Juni 2011 09:06
An: Neuser, Steffen
Betreff: New message: "[email protected]: lots of Voltage meassage from 10GE ports"
Cisco Support Community
Re: [email protected]: lots of Voltage meassage from 10GE ports
created by Shuo Fang in Network Management - View the full discussion

Low frequency measurement from Parallel Port

Hi there...
I need to calculate the "on" and "off" time and duty cycle in pulse form from a parallel port. By making the circuit in 5 or 0 V, I just simply put it in my parallel port. The problem comes when I need to measure a very very low frequency. In this case, I want to measure the duty cycle from my operated refrigerator. I need to know when the thermostat goes "on" and when it comes to "off". In my experience, the thermostat will be "on" in about 5-10 minutes and "off" in about 20-30 minutes. So, the pulse might be take for a long periode each.
I've tried with Timing and Transition Measurement wizard or even by using Pulse Measurement.vi which is included in Waveform Measurement category. It only works for 2 Hz and . If I try to set it with 1 Hz or below, it comes the message :
"Error -20308 occurred at Timing and Transition Measurements -> Untitled 1
:4" (waveform index 0 of 1)
Possible reason(s):
Analysis: The waveform did not cross the mid reference level enough times to perform this measurement. Check the signal length, reference levels, and ref level units."
Could someone help me please ?
Regards,
Ricki

here is a quick shot to give you an idea
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'
Attachments:
port logger.vi ‏22 KB

Read from parallel port

I know it's possible to write some data to the parallel port using
LabVIEW, but I don'y know if it's possible to read from the parallel
port.
If someone knows, please advice.
Thanx for reading.
Paul
Sent via Deja.com http://www.deja.com/
Before you buy.

[email protected] wrote:
>I know it's possible to write some data to the parallel port using LabVIEW,
but I don't know if it's possible to read from the parallel port. If someone
knows, please advice.
Thanx for reading.
Paul
Yes, it is very easy to read from the parallel port. There have even been
some VIs floating around allowing you to use the parallel port for digital
I/O using the inport and outport VIs.
To just use it to communicate, just use the VISA VIs with the proper resource
name for the port you are using.
Bob Young - Test Engineer - Lapsed Certified LabVIEW Developer
DISTek Integration, Inc. - NI Alliance Member
mailto:[email protected]

Reading Ascii charactors from Parallel port???

Greetings:
I have a question about instructing a third party vender who is writing code in VB6.0. (windows XP sp2)
They will be sending cycle counts thru the parallel port to my computer that i will be capturing using Labview 7.1.1 (windows XP sp2)
The format of the streaming will be Ex. *000000324*000000325*000000326*... etc. Continuously
I can tell him to get rid of leading zeros if need be.
I think i can capture this using VISA serial read.
a) But what should i tell the third party vender for him to write to the parallel port? Also should set the printer port to RAW
and/or bi-directional printing .
b) What is the pinout of the parallel cable between the two computers , is there a Null modem type of cable available, or is it pin to pin?
c) What about handshaking , such as printer not ready, buffer full, etc.etc.
Any help would be apreciated.
Thanks
Forrest
[email protected]
to modify thier software to a
Parallel port. so that i could capture.
I have a third party group that is running a process sending and receiving
data
> thru a USB port for control of a frequency test. They are keeping track of
> cycle counts that
> are important in there test. They are using Visual Basic 6.0.
>
> What I want to do is to send the cycle counts ( which could be up to
> 999,999,999 cycles)
> (on an older system I would capture the cycle counts from a RS232 port
that
> they were send to me on another computer[Running Labview 7.1.1])
>
> I need ( since RS232 ports are sort of going away on new computer system
> nowadays) to capture a streaming cycle count from the third Party system.
> etc which will be continuous. They can modify there Visual Basic 6.0 to
> incorporate USB drivers for your chips. I will be capturing the Data
either
> RS232 or USB into Labview 7.1.1 .
>
> I noticed you had drives on your web site with VB and Labview.
>
> Could you guys give me some suggestions if possible.
> Thanks
>
>

Hi Forrest,
Okay... that makes more sense. You are trying to communicate beetween 2 PC's. Something like LapLink.. And yes, it would be okay to do this with the parallel port, it may have more speed than the serial port. However for ease of implementation, you can use the serial port communication. It is actually quite easy to implement.
The first step (if you are using Windows), is to establish the communication between the PC's using Hyperterminal. You should be able to "chat" between the 2 PC's. Maybe I shouldn't use the word chat.. You can communicate (Tx/Rx - ASCII) between the 2 PC's. Once you verify that this works (at the desired speed - and configuration), you can implement it in Labview.
RayR

Audio out from HDMI port?

I have connected my TV and Booklet via a standard HDMI cable. This same HDMI cable works fine with my DVD player. When I use it with my booklet, only video seems to be sent to the TV via the HDMI cable. Is the HDMI out port supporting only video, or audio as well? I understand the booklet supports HDMI 1.2, which should support an audio profile, as far as I know.
Let me know if you have been able to get audio to work over HDMI.
thanks,
John

I found your discussion attempting to find the answer to the same question.
I won 5 of these things at auction and wanted HDMI to be a selling point
I researched far and wide and now I think I have the answer now.
I had to reload the OS and all the drivers for all 5 units
I read some of the replies to this topic and with some people saying that they had audio and I didn't, I felt that either I was crazy or someone is not truthful. so i had a thought ,
after about the 3rd unit I tried to just try to hook it up to a TV bare without Nokia updated software
What do you know, it worked.
So I have come to the conclusion based upon using both units after testing them with and without the update, is with the stock driver provided, you will get the audio from the HDMI port; if you update the software from the updater(which I noticed it says the driver is MANDATORY)
You will not.
There is a plus and minus on both occassions
With the graphics driver update you can scale your video once hook to an HDTV to full 1080p HD; but you wont get any audio (at least for now)
Without the update you will get the audio out , however you will only get the same native resolution as the netbook 720p
So contemplate which feature is more important you and make your choice.
Higher picture quality(full HD) with the driver yet I need 2 cable (HDMI AND 2.5 to RCA)
OR lower resolution720p but audio as well
I hope this helps but i see my next challenge for both you and is to see if we can roll back the driver if we want audio over HDMI.

Can't do video out from multimedia port

I am trying to connect a 'multimedia cable' to my powerbook 15" via the port to the left of the headphone port. I thought this was the video + audio out port. The mini plug has three segments to it, and fits into this hole. But no signal is sent to the TV set. How do I get this to work without connecting S-video and then a stupid headphone adapter-to-RCA?
What is the port to the left of the headphone port? It looks like a box with two triangles pointing into it.
Seth

Thanks! Wish it were audio-video out like on the clamshell ibooks, but I guess I'll buy the cords for the headphones-to-RCA adapter.
Appreciatively,
Seth

My parallel port cannot work on win2000 and new pc

I was troubled by the reading/writing from parallel port on win2000 for a long time. I had made my programs work on win2000/OLD PC, but i failed with the same programs on win2000/new PC. I tried with the method from the forum, that is, install accessHW and other method from my colleagues. Allways failed. I have to return to an old pc, it work! I think not only win2000/winxp will influence parallel port work, but also pc hardware. My new PC is Dell's GX260SMT with p4 2.4G. Dell's FAE told me that i can not install win98 on the pc due to some limitation of mainboard. Who met the smae issue as mine? How to fix it? Thanks for any help.

I typically stay away from Dell PC's. I always have problems with them..
I'm surprised to read that a new PC doesn't support Win-98. Have you / can you try Win-NT 4?
I can't understand why Win2K would be different with a newer PC. The OS assigns the base address of the parallel port to a typical value of 0378h. This is for LPT1.
My question would be: Are you having problems with LPT1 or do you have a PCI-based Parallel Port (to add ports)? If so, you cannot change the base address with Win-2K or Win-XP which assigns a PCI base address to the port.
Can you provide more details as what exactly changes between the 2 PC's. Other than the motherboard and typical hardware (of course).
How is the parallel port configured?
What are you doing
with it, etc?
Any information that can help figure out a solution.
Regards,
JLV

How can I do to communicate to parallel port using labview 5.0 and NT ?

I am trying to write and read from parallel port using Labview 5.0. It does not work with NT.
How can I do to communicate to parallel port using labview 5.0 and NT ?
Thank you in advance.
Regards,

If you are trying to use In/Out port functions that come with LabVIEW they will not work with NT. I think the AccessHW file at the following link will fix that problem:
http://zone.ni.com/devzone/explprog.nsf/6c163603265406328625682a006ed37d/49664743ded6f1da862564bc004e3a7f?OpenDocument
Try also this link:
http://zone.ni.com/devzone/conceptd.nsf/2d17d611efb58b22862567a9006ffe76/0989d3d9dafae64e8625680400679736?OpenDocument
and do some searchs at NI.com for parallel port, you should find some more usefull info.
Good luck
Brian

Parallel Port Programming - Pls Help

Sir / Madam,
Greetings.
We are new to writing parallel port programming. We have tried to execute a sample code.
import parport.ParallelPort;
class SimpleIO {
    public static void main ( String []args )
      ParallelPort lpt1 = new ParallelPort(0x378); // 0x378 is normally the base address for the LPT1 port
      int aByte;
      aByte = lpt1.read(); // read a byte from the port's STATUS pins
      System.out.println("Input from parallel port: " + aByte);
      aByte = aByte >> 2; // a simple and irrelevant operation
      lpt1.write(aByte); // write a byte to the port's DATA pins
      System.out.println("Output to port: " + aByte);
}We get the following error:
# An unexpected error has been detected by HotSpot Virtual Machine:
# EXCEPTION_PRIV_INSTRUCTION (0xc0000096) at pc=0x10001057, pid=2224, tid=2916
# Java VM: Java HotSpot(TM) Client VM (1.5.0-b64 mixed mode, sharing)
# Problematic frame:
# C [parport.dll+0x1057]
We are new to this..
Pls help us. We have connected a parallel port device already.
Regards
Rampalli

This means there is a bug in the driver you are using.
I would check you have the latest version of Java 5 or 6 and the latest version of the driver you are using.

"how to read parallel port using labview"

"i am doing a bio medical project and need to read data from parallel port using labview. can anyone help me"

Hi
in most cases a simple example helps best.......see attachment. Find in addition in Word document a helpful picture of LPT - Pins.
In case you work with WinNT, W2k, XP - you need to install accesshw.
Regards
Werner
Attachments:
printer_port_test.zip ‏41 KB
dsub_25_parallel_port.doc ‏29 KB

Problems Reading/Writing Parallel Port Data, Status & control Registers Using In Port.vi and Out port.vi

Hi,
Can anyone there help me Please with the problem. I am trying to
communicate with the parallel port using my program which i have
attached to the message. I am running LabVIEW 7.0 Professional with
application builder. All the program does is reads and writes to the
three parallel port registers. It runs FINE!!! in my computer. But when
i built an executable (see attached) and tried running on a different
computer (with LabVIEW Runtime engine 7.0 installed) the program does
not read/write to the registers. The target PC had the parallel port in
SPP mode just like mine. I can't seem to understand whats going wrong?
Can anyone please help me if you know the right answer.
Thanks
Attachments:
Programs.zip ‏119 KB

Hi Guys,
I too have a problem using "Out Port.vi", but of a diferent kind. I use this VI to control the Parallel Port which in turn controls a small circuit. I use only two data pins, DP-2 and DP-4 for this purpouse. I use LV 7.1 Professional Development version in a Windows 2000 operating system. Now, my main problem is that my code runs fine (both is development and .exe forms) in my development computer, but when I try to run the .exe version in other computers (Windows XP operating system), it asks for a "protocol file" while starting (look at the attached picture).
Now, I really have no idea what kind of a protocol file it asks for and just click "ok" and proceed to work, the most interesting part is that the code works well as I expected. So, my only problem is that it asks for a protocl file which I want to avoid. As with the application building, I do all that is required like including the sub VIs (self developed), creating an installer, enabling the port access, and creating a proper .ini fine. I also use the Out Port.vi from the AccessHW library.
I have my doubts on two fronts,
1) With the version conflict, since my development computer runs with Windows 2000 and my target computers all run with Windows XP
2) With the Out Port.vi which further contains a small VI "Output Word to Port.vi" in it and that further contains Call Library Function Node, which might call soem external files, like what my problem is.(look at the attached picture)
I don't have answers to these questions and may be my problem is in different place, but I would like to hear from anyone who could give me a helping hand. I am in a situation where I could not disclose my code.
Thanks in advance,
mohan
Attachments:
protocol file.zip ‏153 KB

Video out fire wire port from iTunes?

Final cut and Pro Tools LE both have the ability to send video from a G5 to a TV out of the fire wire port via a Canopus ADVC-110. Why doesn't iTunes? I understand that the new Mac TV gizmo plus an airport card will do this, but I already have all the hardware I need for this to work. I just need iTunes to take advantage of the same external video option that Final Cut and Pro Tools LE have. Anyone know of a patch or something that would make this happen. Or at least a stand alone player that will play the m4v iTunes video files and play video out fire wire port to my canopus which will then send it to the TV?

In an attempt to get my iTunes downloaded TV episodes to play on my TV without having to buy the Apple TV hardware and an airport card I have been trying to find a way to convert the m4v video files into a format that can be read by a stand alone player that allows me to output video playback through my fire wire port so my canopus box can then send it to my tv and stereo. I tried iSquint and it does not work. I get an AppleScript error "Can't make "" into type real. (-1700)" If you hit OK the program then spins it's wheels with the progress report "Preparing Audio for File 1..." It is still my belief that Apple should enable iTunes to output video through the fire wire port. Since Final Cut Pro and Pro Tools LE have that ability and it works I assume that it should work wth iTunes. Please send iTunes feedback from within iTunes and ask apple to add this option to iTunes.

What gotchas should we watch out for when porting code from the Adobe SDK to the Acrobat SDK?

What gotchas should we watch out for when porting code from the Adobe SDK to the Acrobat SDK?
... and the other way around?
I have found some evidence that the preprocessor variable PLUGIN seems to prevent macros from includes from being defined. The NPROC and SPROC constructs seem to be involved (partners in crime, if you will).
-Ramon
ps: Please see my related thread "What is the difference between xxProcs.h and xxCalls.h?"

Here's a gotcha that I bumped into:
extern "C" HINSTANCE gHINSTANCE;
I found it in a successfully developed code on the Windows/Plugin side. It is something that I had never used on the APDFL side AND my Windows linker is complaining about several gXXXX missing functions.
IOW: It sounds like the above statement is the solution to my linking problems. Somehow the APDFL seems to take care of the C vs. C++ details.
-Ramon

Voltage out from parallel port

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