Ratio feedforward hvac

Hi all,
I am a newby to Labview running the 2010 Evaluation with Control Design and Simulation Module and PID Module.
My field is HVAC controls and I am trying to design a simulation of a control loop that implements a very simple ratio function known in the industry as outside air compensation. Here the temperature of the outside air influences the setpoint for the heating water in such a way that when the outside air temperture is say 20 degrees C the setpoint needs to be say 40 Degrees C and when the outside air temperature is say -15 Degrees C the setpoint for the heating water is 90 Degrees C. This is generally known as a heating curve and is a function every DDC (Direct Digital Control) controller in the HVAC market implements as a standard. See Picture below.
It mus be my lack of experience with LV but I cannot seem to find a function that implements this. I searched the forums and the help files, but no luck. The PID setpoint profile function provides a ramp but based on time, the PID lead Lag function also does not seem to fit. Should I use an array as an input to the PID controller setpoint or is there a better method?
Any help would be greatly appreciated.
Peter

Thanks, I'll try to play with the connections and see if I'll be able to understand them.
But is it possible to incorporate the PID Parameter (Rise Time, Settling Time, Overshoot, Gain Margin, Phase Margin) on the example that I have uploaded? The Example I've Seen regarding the above mentioned parameters works only if the input to the 'Time Response Function', But on the simulation example that I mentioned, I don't see any TF input to the PID since it comes from the Plant to Simulator. Does the Plant Simulator works on a specific Transfer Function?
I've uploaded the 2 files that I wanted to combine.
Thanks
Attachments:
prctrlex.llb ‏1248 KB
controlsys_analysis.vi ‏499 KB

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What are the ideal specs for a DigiBeta master tape when authoring a "widescreen anamorphic" 16:9 SD DVD (original aspect ratio is 14:9)?

I just received the masters for a new SD DVD. I would like to author a "widescreen anamorphic" SD DVD horizontally squeezed widescreen image stored in a standard 4:3 aspect ratio DVD image frame. (On 4:3 displays, mattes should preserve the original aspect ratio. On 16:9 displays the image will fill the screen at the highest possible resolution.)
Below I've listed the specs of the Digi Beta master tapes the producers have sent to me for digitizing. I'd like to know this: What are the ideal specs for a DigiBeta master tape when authoring a widescreen anamorphic SD DVD, using material with an original aspect ratio of 14:9?
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Original Aspect Ratio: 1.55 (14:9)
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Pixel Aspect: NTSC - CCIR 601
Frame Size: 720 x 480
Anamorphic: Full-Height Anamorphic (16:9 image displayed in letterboxed, non-distored 4:3)
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MY GUESS AT IDEAL TECHNICAL SPECIFICATIONS (for a DigiBeta, that is):
Tape: DigiBeta
Original Aspect Ratio: 1.55 (14:9)
Vid Rate: 29.97 fps
Pixel Aspect: Square
Frame Size: 720 x 540
Anamorphic: YES
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Please feel free to ask for clarification or further information you need to answer my question.
Thank you so much in advance for your help!
Best, Noetical.
BTW, I can't wait for the day when everything has gone digital and we get digital intermediates instead of tapes to digitize!

Hi Nick...thanks for taking the time to reply to my question.
Nick Holmes wrote:
What you have there is a mess.
NTSC pixels are never square.
NTSC is 720x486, even when it is Anamorphic.
You shouldn't be using an already letterboxed master to make an Anamorphic version. Get the master that was made before the letterboxing stage.
When you make an Anamorphic DVD it should display as 16:9 full screen automatically on widescreen TVs.
The same DVD will automatically letterbox on 4:3 TVs.
Um yeah...duh. That's exactly what I was trying to explain in the preface of my question. I'm sorry if I didn't make it clear...all these things you mention are the reasons I'm putting together a list of the technical specs of the DigiBeta I need so I can have them send that instead of the stupid letterboxed version.
Look, I'm sending this request to some intern at their offices in England, asking for a master with which I can make an Anamorphic DVD. They already sent me this master, which as you and I both agree is an idiotic asset to use for these purposes. As such, I was hoping for advice on a more precise way of requesting the master that I need than asking for "the master that was made before the letterboxing stage." Upon reflection, perhaps I'll just do that. If you or anyone else has a suggestion about something I should add to my request that would improve the odds of them sending the tape I need, please repond. Thank you!
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Hi
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ID_COUNT
FROM
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TBL_1,
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thank you

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OPERATOR                   1            2      50
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This issue can be caused by the Babylon Toolbar 1.1.8 extension
*https://support.mozilla.com/kb/Troubleshooting+extensions+and+themes
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*https://support.mozilla.com/kb/Safe+Mode

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Hi,
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Someone suggested editing the PRPROJ file of the project - but when I opened it I was unable to detect under the sequence name (I found a few entries with it) where I can easily change the sequence to 16:9.
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Windows 7, 32-bit
CS4, v. 4.2.1
This looks like a fairly basic question but I am unable to find a good answer to it...
Many thanks to the person who shows me how this can be done without me going crazy over the need to start all over again...
Eroka00

Hi Ann,
Your tip saved me a lot of time indeed....!
So I created a new sequence, made sure it was 16:9, copy pasted all of the assets, but then had to do the following:
1. Copy/Paste Attributes for all the video clips (these do not transfer);
2. As you suggested used the whole of the old sequence as a nested sequence in the new one, eliminating the video altogether.
I still had a nagging issue that the project would not render or export well - but that turned out to be an issue with rendeiring large files (the video was an uncut clip of almost 10GB, andother of 6GB). Splicing these into 10 minute segments and rendering them separately did the trick.
It's ben amlong Xmas weekend and endless hours spendt on this project. Yaikes!
Thanks for the workaround idea!

Neo2 Platnum - memory ratio issues, please help!

hey all
very strang stuff...
just got a 3200+ winchester .90 CPU, its nice. also have 2x twinx corsair 3200 non LL ram.
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anyone else had issues changing the ratio?? I tried 1.37 with the same result.
facts: in 1:1 I can run up to 220 and boot windows, so ram runs fine at 220
: the CPU runs fine at 2.6ghz so the cpu is ok
the only conclusion I can come to is that the motherboard is wacked out.. I think the bios is crummy or something. I cant afford new ram; I only wish I could change the multi on the CPU!! waaaaaa
any thought are appreciated

Try reposting in the Overclocking forum, and include your complete system specs in your signature.

Neo2 Memory ratio issues, please read

hey all
very strang stuff...
just got a 3200+ winchester .90 CPU, its nice. also have 2x twinx corsair 3200 non LL ram.
idea: I had in mind that since my ram doesnt OC very well (220 max) I was going to get the neo2 and play with the FSB and set the ratio of the ram to 166 or something so that I could up the FSB which would in turn up the ram to around 200 or a bit over. thats the idea anyways...
result: initially I could not even post with this ram, had to flash to 1.3 but now it works. when I try to set the ram to 166 and start upping the fsb, I can get to around 220 fine. any more than 225 and I cant post... huh??? the ram is only running at 183 or so mhz at this point so I know its not that. I raised the voltage of both the cpu and ram to 10% and 2.80v and still had same problem...
ok, so I thought I would just change the fsb to 133... well again around 225 or so I cant post... ram is running at 150 only then, so definately not ram. I am lowering the HT to 4x and 3x and still no difference..
my last resort was 100mhz.... well oddly enough, when I set the ram to 100 I can up the FSB to 270 and it posts! I can boot windows at 260 fine, cpu is 2600 and ram is 133 at that point... well the ram doesnt bench too good there obviously, like 3100 in sandra.
the only other thing I could thing of was upping the FSB as high as I could go to get the ram up there and lower the cpu multi while leaving the ram at 100... I was able to get it up to 300 which the ram runs at 150 and booted into windows. but zcup said that HT was running at 300mhz... when I tried to up it from 3x to 4x it posted all weird, so I dont really want to stay at that level...
anyone else had issues changing the ratio?? I tried 1.37 with the same result.
facts: in 1:1 I can run up to 220 and boot windows, so ram runs fine at 220
: the CPU runs fine at 2.6ghz so the cpu is ok
the only conclusion I can come to is that the motherboard is wacked out.. I think the bios is crummy or something. I cant afford new ram; I just want to be able to change the ratio to 166 and have it work, is this too much to ask?
Should I RMA the board?

I use an Antec TruPower and that is hindering my performance right now.
If its your ram that is failing use memtest to see at what speed it's failing. I started at (1:1) at 2.0 Ghz dropped the multi to 9 and slowly raised the fsb until memtest would give me errors. After finding a setting that was error free i then ran prime95 to see if it was really stable. I haven't been able to run 1:1 but i do hit 2.5Ghz without any memtest or prime95 errors.
"the only other thing I could thing of was upping the FSB as high as I could go to get the ram up there and lower the cpu multi while leaving the ram at 100... I was able to get it up to 300 which the ram runs at 150 and booted into windows. but zcup said that HT was running at 300mhz... when I tried to up it from 3x to 4x it posted all weird, so I dont really want to stay at that level..."
You were running HT at 300 and tried to go from x3 to x4? I don't remember the exact number but you can't go over 1020-1040 on HT.
Edit: finally... (1:1), now just gotta test for hours on prime95...ugh.

New ratio doesn't appear in Bex Query designer

Hello Experts,
I added 2 ratios to my infocube. It activated without any problem. I then added these 2 ratios to my multiprovider and activated it after affecting them to the previous infocube.
Then I connected to the Bex query designer and loaded a report in order to add these ratios, but there are not available for selection in the Ratio menu of the multiprovider.
Has anyone faced this problem?
Thanks

Try reactivating the Multiprovider again and see if that works !
I had this issue earlier, where I couldn't see two of the newly added characteristics in the multiprovider. But simply reactivating the multiprovider solved my issue.
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Can you help me solve my aspect ratio issue?

Hey guys,
I'm posting this in hopes that someone can help me solve an aspect ratio issue with a project that I have to finish by tomorrow.
I'm trying to avoid having to re-edit the entire thing.
I shot the project with my Nikon D7000 DSLR. in 720p 30p (29.97)
I am running Adobe Premiere Pro CS5 (the trial version). I have the full version of Adobe Premiere Pro CS3.
The reason I was working with the trial is that CS3 can't handle the H.264 MOVs that the D7000 records.
You can work with a timeline, but if you try to export anything, it never works. I always have to convert my footage to ProRes MOVs with MPEG Streamclip before I can work with them is CS3. That takes a lot of time and a lot of hard drive space. After much research, I found out that CS5 is the way to go for DSLR footage. I just need to save up my pennies for the upgrade.
So I thought I'd edit this short (1 minute) project with the trial to see how CS5 works with the D7000 footage.
Upon installing the trial program, I found that the project presets were limited. I knew this ahead of time because it's clearly stated on the Adobe's website.
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Thanks in adavance!
- Jordan

On export, just crop a few pixels off of each side; that'll let the image scale correctly to the output frame size without black bars.
I'm not running the trial, but you should still be able to create a custom sequence preset using the Desktop editing mode. Just switch over to the General tab when you create a new sequence, and choose "Desktop" from the editing modes. Set the rest of the parameters as you need them.
Even easier: once you've imported your footage, just drag a clip to the New Item icon at the bottom of the project panel; a sequence will be created matching your footage parameters. You can edit at full-resolution, and then export to your desired frame size when complete--you'll probably still need to crop a few pixels (in the Export Settings window) to eliminate the black bars.

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Hello All,
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In the browser (view as list) check the Anamorphic Flag associated with both the imported clip and your sequence: both should be set. My guess your sequence is not 16:9, in this case you only have to set that flag in the browser to fix it.
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1:1 FSB:Memory ratio on 865pe fisr (250+Mhz)

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My sys specs are:
MSI NEO2 865PE FISR
P4 2.4C 800 FSB
2x512MB ADATA PC4000
ATI Radeon 9700
WD 40GB 8MB Cache
IBM Deskstar 120GXP 40GB
Lite-On 16x DVD rom
Enermax 550W PSU
As of now I am in hardcore diagnostic OC mode. I am taking the time to verify the limits of each of my components separately. Only one component is stressed at any one time and the others are all run as below spec as possible. Lets see what turns up. Let me know what bios works best for you guys.

U had any problems with u'r ADATA DDR 500?
Where did u pick it up??
see my other post for my specs
http://www.msi.com.tw/program/e_service/forum/index.php?threadid=27815&boardid=10&styleid=1&sid=f383feb6d3080c2e532cb89a2201c498

Working with several video formats aspect ratios need help...

Hi folks I have searched around quite a bit but I need more specific advice based my situation...I am editing a docu about Japanese biker gangs shot on several different SD cameras:
MY FOOTAGE
1.Sony Vx-2000 fitted with a Century Optics 16:9 converter lens bayonet mounted
2.Canon Xl2 shot in 16:9 mode
But I also have:
ARCHIVAL/ACQUIRED FOOTAGE
1. Contributor's camera SD 4:3 aspect ratio
2.Contributor's camera SD 16:9 aspect ratio
3. Transferred from VHS into SD 4:3 aspect ratio
I would like to standardize the aspect ratio for the project but I am getting confused as sometimes the footage shot on the sony (which should be true 16:9) appears elongated vertically at times.
Are my settings off?
Also, I have "title safe" wireframe on in the Canvas and the images all exceed the outer box. I don't have a TV so it's hard to check what (if anything) gets
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BTW eventually I am planning on Uprezing the project to HD using Magic Bullet when outputting.
The overall question is: Who has experience dealing with multiple aspect ratios in one timeline? Can you offer any advice on a work flow to output successfully?

Sorry to butt in, haven't read the entire thread.
Suggest you plan from the beginning to create one timeline but encode for two separate output formats.
Standard procedure for bringing multiple formats is to convert them to a single format as they are ingested. Decide early what the timeline format will be and transcode everything to that codec before anything is brought into the timeline.
When your project goesgolden, export a single self-contained movie and take that to Compressor to create release movies that will be played on Blu-ray, SD DVD, online, or in Power Point, whatever you need.
bogiesan
Message was edited by: David Bogie Chq-1

Help using digital AV adapter iPad to LCD TV.(picture ratio)

Hello everyone!
I've recently decided to use my iPad 3 generation, to connect to my TV LG 47 ACL using an Apple Digital AV adapter, the adapter has got two 30 pins and 1 HDMI cable. It kinda works, it only shows half the picture ratio projected from the iPad on 1/3 of the tv screen. I originally thought this would be a TV>remote>picture>aspect ratio setting, but after playing with the setting; still only 1/3 of the iPad is projected onto the TV. I was hoping if anyone knew of any solutions to using the digital AV adapter to get full screen coverage on this type of TV would be helpful.
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The other port is the iPad 30 pin connector, just like the one that this adapter plugs into on your iPad. It is there so that you can charge the iPad at the same time that you are using it with HDMI.

Ratio feedforward hvac

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