Device number makes a difference in NI SCOPE rise time

I just moved 3 scope cards (PCI 5102 ) from an old PC station to a new
PC station. Using MAX I set the device numbers to match the old
configuration.
Everything looks OK except which ever device I designate as device 1,
shows excessive rise time. If I use MAX to call the same physcial card
something other than device 1, the rise time go aways. See the attached
screen shots.
What am I missing here? I can't find any configurations settings to explain this.
~~~~~~~~~~~~~~~~~~~~
Paul Johnson
Renco Encoders, Inc
Goleta, CA
~~~~~~~~~~~~~~~~~~~~
Attachments:
As Device 1.jpg ‏75 KB
As Device other than 1.jpg ‏73 KB

The reason you are getting different results is that you are sampling at different rates. You can see the rate above the green LED. The rate is a combination of the Time/Div and the record length that you have selected.
So take a look at the configured record length for each configuration by going to Edit>>Device Configuration. Then choose the one that works best for you.
The reason the behavior follow Dev1 is because the SFP saves the configuration information for each device. However, it is by the device number not be the specific board itself. So the configuration file for Dev1 has the record length set lower, and therefore the differnce in data.

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when extending my wifi network using an Extreme as my main and an Express to extend.. does it help to make sure that both devices are on the same channel or does it even make a difference if they are on different channels?

Have you even tried the process in which i have described in my previous post?
Yes, many times. If you are setup to "extend a wireless network, the screen looks like this:
If you click the Wireless Options button, the screen looks like this:
Where is it on this screen that you see a setting to adjust the channel? It sounds like you are confusing "create a wireless network"....which does allow you to adjust channels.....with "exend a wireless network" which does not.
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Would like to understand WHY changing the IP address seems to make a difference.

I have had significant difficulty getting my WRT54G v5 to pass to the internet multiple pcs connected by cable and/or wireless. Default settings seemed to work fine to log into the LAN, but only 1 connection would go to the internet. I called Linksys tech support and they successfully got me over at least the initial hurdle so that my 2 main pcs can now function, and a 3rd seems to also get through. I've seen in this forum a BUNCH of similar posts, including some which say that success only lasts for brief periods of time.
What changed to get mine to work???.......192.168.1.1 was changed to 192.168.2.1. What I'd like to understand is.......why does that make a difference?
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Linksys, can you please explain?

The address pool of the DHCP server are just the IP addresses which the DHCP server uses to assign them to devices which ask for an IP address via DHCP (e.g. computers which are set to obtain their IP address automatically). The DHCP server automatically supplies those devices with an IP address and assigns the correct subnet mask, gateway address, and dns servers.
This has nothing to do which IP address actually have internet access or not. After the device got its IP configuration from the DHCP server this configuration works just like any other configuration you may statically configure on some other devices.
The router connects all IP addresses inside your LAN to the internet as long as the devices use the router IP address as default gateway.
If you router has an LAN IP address 192.168.1.1 and a subnet mask 255.255.255.0 these two numbers together define that all addresses 192.168.1.* are part of the LAN. 192.168.1.0 is a special purpose address. 192.168.1.255 is the broadcast address of this LAN. Everything from 192.168.1.1-254 are normal IP addresses inside your LAN (with .1 obviously allocated by your router). Operating as gateway between the LAN and the internet the router accepts traffic from any of the LAN addresses and forwards it into the internet and receives the responses and sends them back into your LAN.
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Adding a column makes big difference with a simple query

Hello All,
The oracle environment I am working with is
Oracle9i Enterprise Edition Release 9.2.0.8.0 - 64bit Production
and
PL/SQL Release 9.2.0.8.0 - Production
I have a question for the following 2 queries. The only difference is that first one has an extra field than the second one. That extra field makes big difference regarding excution time. One is 4 seconds and the other is 5 minutes. Could anyone help me to understand why? Thank you for your help! -Susan
4 Seconds
================================================================
select distinct B.A_CA.CA_ID, B.A_CA.CE_ID
from B.A_CA, B.CA_LIST_DTLS
where UPPER(deleted(B.A_CA.CA_ID) = 'N'
and UPPER(B.CA_LIST_DTLS.CA_LIST_NAME) = 'SW'
and B.A_CA.CA_ID = B.CA_LIST_DTLS.CA_ID ;
5 minutes
==============================================================
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from B.A_CA, B.CA_LIST_DTLS
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=============================================================
FUNCTION deleted ( in_ca_id IN B.A_CA.CA_ID%TYPE ) RETURN VARCHAR2 IS
n_result VARCHAR2(20);
cnt NUMBER :=0;
cursor cur is
SELECT COUNT(*)
from B.A_CA
where B.A_CA.CA_ID=in_ca_id
and (B.A_CA.COMPLAINT_FLAG = 'Y'
or B.A_CA.DELETE_FLAG = 'Y') ;
BEGIN
OPEN cur;
FETCH cur INTO cnt;
CLOSE cur;
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else
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end if;
RETURN n_result;
EXCEPTION
WHEN NO_DATA_FOUND THEN
return 'N/A';
END;
Edited by: 849989 on Apr 5, 2011 10:25 AM

Explain plan for two queries:
The fast one:
Plan
SELECT STATEMENT CHOOSE Cost: 4,223 Bytes: 116,032 Cardinality: 2,072
5 SORT UNIQUE Cost: 4,223 Bytes: 116,032 Cardinality: 2,072
4 NESTED LOOPS Cost: 4,212 Bytes: 116,032 Cardinality: 2,072
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2 INDEX UNIQUE SCAN UNIQUE B.A_CA_PK Cost: 1 Cardinality: 1
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Plan
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4 SORT UNIQUE Cost: 305 Bytes: 111,888 Cardinality: 2,072
3 HASH JOIN Cost: 295 Bytes: 111,888 Cardinality: 2,072
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2 INDEX FAST FULL SCAN UNIQUE B.A_CA_PK Cost: 225 Bytes: 131,928 Cardinality: 10,994
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HT5527 Does it make a difference if I purchase my storage plan through iOS5, or through Mac OS?

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For this level of video quality, does it make a difference to use HDMI vs. just RCA?

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Found 0 results for When I open Firefox I get a "Well this is embarrassing" message. Makes no difference if I click on "Start a new session" or "Restore", it crashes. Then I get a "crash report" which apparently goes nowhere. I have uninstalled and reinst

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== This happened ==
Every time Firefox opened
== Last week when I opened Firefox.

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Add-ons: {0538E3E3-7E9B-4d49-8831-A227C80A7AD3}:0.9.10.2, :3.63,{972ce4c6-7e08-4474-a285-3208198ce6fd}:3.6.3
BuildID: 20100401064631
Comments: I get an error message, " well, this is embarrassing"..and Firefox crashes
CrashTime: 1274739017
EMCheckCompatibility: true
Email: [email protected]
FramePoisonBase: 00000000f0dea000
FramePoisonSize: 4096
InstallTime: 1270304892
ProductName: Firefox
ReleaseChannel: release
SecondsSinceLastCrash: 2699
StartupTime: 1274738966
Theme: classic/1.0
Throttleable: 1
Vendor: Mozilla
Version: 3.6.3
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Just curious. It would be difficult to actually test, since i imagine the difference would be small if any.

I don't think it makes any difference.

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When this 'white-out' occurs, is the display 100% white with no error message and no menu bar?
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Steve,
I appreciate your focus on assistance, and thank you for your help. Couple of follow up questions: What you said about the new specs suggests that the MacBook Pro line has recently been upgraded with, what, the 2nd gen Intel chips, some other incremental improvements? So maybe it has paid off to crawl along with my old mac to get the latest tech. For these kinds of upgrades, I guess Apple doesn't advertise that they have the latest chips (I've seen PC ads touting the 2nd gen chips, and checked out the Intel site, so that's how I became aware) and all?
I'm planning to enjoy this computer for quite some years. Of course I will get the 3 yr extended warranty. And I was planning to get the hi res antiglare screen: that seems to be the best of the options. It looks like one can now get a faster 750 Gb fast drive, instead of having to settle for 500 in the faster version. The cost does add up, but my feeling was to go for broke and get the best machine I can. So does getting the faster cpu and hd and max ram (perhaps buying third party) and all make sense, assuming I can afford it when I add everything up, or is it like a moderately good guitar player getting a top of the line guitar he can't really play well enough to warrant it? (I remember a story about a student under Segovia arriving with a very very expensive guitar when he was still early in the learning process; it may be apocryphal, but story goes that Segovia took the guitar from the student and smashed it to smithereens. I assume that was not just because the student mistook the instrument for skill in playing it, but perhaps also because he would be too careful with such an expensive instrument, and fail to master it. Maybe not a perfect analogy, but I could be mislead by seeking the "best barn burner on the block" when what I need is what will work fine for my purposes.) So I think your original response was probably right on in terms of what will actually be of use to me.
Thanks again,
David

Device number makes a difference in NI SCOPE rise time

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