MCS 7845-H2 Front Panel LED's

Trying to find some sort of support document for this server model to get an understanding of what the LED's mean, as one of them has just turned amber (which according to this ( http://www.cisco.com/en/US/prod/collateral/voicesw/ps6790/ps5748/ps378/product_data_sheet0900aecd80572766.html ) it indicates an internal component failure.

There's no setting to adjust the brightness of the LED.
Next time you are near an office supply store, pick up a box of 3/8" or1/2" round, white labels/stickers.
Place one or two over the LED and it will dim the LED. Add more to adjust the brightness level you want.
The white stickers are virtually invisible once you move back 3-4 feet from the AirPort Extreme.
Looks much nicer than a piece of tape.

Similar Messages

Can I Bind a Front Panel LED to a specific element in an array of booleans?

In LabVIEW 2010 I have a string of LEDs. I have and array of boolean values that contain the values that the LEDs should indicate.
What is the best way to connect the LEDs to elements in the array of booleans?
Can I Bind a Front Panel LED to a specific element in an array of booleans?
How is this done?
Can anyone show sample code?
Solved!
Go to Solution.

Imagine that you have an I/O card that provides 128, 256 or 1024 digital inputs and the requirement is to have an LED on the front panel to represent the state of each digital input. This frequently occurs.
Wiring that many digital inputs individually is a royal pain and then some !
It would make sense to have one shared variable as an array of Booleans that represents the status of all inputs and then use data binding instead of wiring each individually. The individually wiring would violate all recommendations on diagram size and fan out.
Frequently scanned For loops to update all of the LEDS would take alot of CPU time.
Wouldn't it be MUCH better if PSP could be used to update the LEDs whenever the data changed (as it is supposed to do) ?
In my case I have a LabVIEW Yaskawa servo driver that provides me information about 16 servo drives that may be connected. I have LEDs on the front panel to represent some of that status for each individual drive. But Yaskawa provides the information on the drives as an array of clusters of information for each drive, which I perform some business logic on and turn into shared array of Booleans to feed the LEDs (and some banks of switches as well).
Unfortunately LabVIEW does not seem to have any way to bind the LEDs (and Switches) to individual elements in the shared array of Booleans. It is just not that smart. Even with only several banks of 16 LEDs and Switches, wiring them individually using Decimate Array of Index Array functions is a royal pain and makes the block diagrams very large. It would be much worse and almost unreasonable to do if the size of the information was much larger.

Cisco MCS Server 7825 front side LED status..?

Hi,
Please provide me the details of Cisco MCS server 7825 front side LED status. Because i our server one LED status showing AMBER. i know about the status of two led one is for HDD one is for Ethernet and please tell me about the third one.
Regards,
Deepak Sambyal

Steve - if the servers are showing blank screen on monitor connected to console, it appears they are not even initialising the POST process. It could be due to a faulty component - could be CPU, RAM, motherboard..anything....
Generally with this kind of issues, you try to isolate faulty hardware, by rebooting without any component and see if it reaches POST. I would suggest open a case with TAC and I hope the servers have active maintenance.
On another note try changing the monitor cable etc. to rule out any issue with any cable or monitor (which i doubt would be the case) just to make sure and then try a reboot and see if you see anything on screen.
-Terry

Front Panel LEDs problems for Mega 180

Hi, it's rigth one year I got a Mega 180, and I've not ended yet to tune and optimize it
I admit it's like a hobby now
I immediately ask you for my LEDs problems.
I have read many topics and maybe other people have the same my problem, also if I'm not sure if they treat about the Front Panel LEDs when they speak about the "LCD Display".
I have some switched off LEDs in my front panel, in the "time" displayng and in the volume bar: I have to substituite them? Someone have done it before? It's possible to remove the front panel or I have to disasseble all the pc
Or it's a firmware problem?
I also thank all people that cured the section of optical devices compatibility: last week I bought a new Pioneer 111D, because my LG GSA-4167B was not suitable in the PC mode, for DVD playback.
In fact I had many problems for the DVD fluently playback: I have spent 4 months trying new video codecs and also substituting the video card, then I finally have understood that was an optical device problem.
The Pioneer 111D was perfect in the PC mode, but then I had problems for HI-FI playing mode
Then I finally used my old Pioneer 108, that I had in the old desktop, and all work (I pray) fine both in HI-FI and PC mode.
I'll be very happy also to describe to whom that will ask me, my experience with the Mega 180 "assembling", during the last year, hoping it could be useful for other people.
Thanx

> Hi, I'm new to LabVIEW! Ok, what I'm trying to do is create a front
> panel with 9 LEDs. Then I have a Menu Ring, with three different
> options. These options determine the order in which the LEDs are lit.
> So what I was planning on doing was creating three subVIs, one for
> each of the options...but how can I do that when I only have one
> boolean for each LED? So basically how can I relate the LEDs on the
> front panel into the subVIs? I tried using globals - but it seemed
> like that just passed on the state of the boolean instead of allowing
> me to actually change the boolean in the subVI. I hope this makes
> sense...I'm really confused! Thanks for any help!
Initially, you might just hook your ring to a case structure to
determine which frame exe
cutes. You can put the terminals for the
Booleans in the different diagrams and about the only other thing to
keep in mind is that you probably want a delay in the loop.
Greg McKaskle

Accessing front panel LEDs in several subVIs

Hi, I'm new to LabVIEW! Ok, what I'm trying to do is create a front panel with 9 LEDs. Then I have a Menu Ring, with three different options. These options determine the order in which the LEDs are lit. So what I was planning on doing was creating three subVIs, one for each of the options...but how can I do that when I only have one boolean for each LED? So basically how can I relate the LEDs on the front panel into the subVIs? I tried using globals - but it seemed like that just passed on the state of the boolean instead of allowing me to actually change the boolean in the subVI. I hope this makes sense...I'm really confused! Thanks for any help!

> Hi, I'm new to LabVIEW! Ok, what I'm trying to do is create a front
> panel with 9 LEDs. Then I have a Menu Ring, with three different
> options. These options determine the order in which the LEDs are lit.
> So what I was planning on doing was creating three subVIs, one for
> each of the options...but how can I do that when I only have one
> boolean for each LED? So basically how can I relate the LEDs on the
> front panel into the subVIs? I tried using globals - but it seemed
> like that just passed on the state of the boolean instead of allowing
> me to actually change the boolean in the subVI. I hope this makes
> sense...I'm really confused! Thanks for any help!
Initially, you might just hook your ring to a case structure to
determine which frame exe
cutes. You can put the terminals for the
Booleans in the different diagrams and about the only other thing to
keep in mind is that you probably want a delay in the loop.
Greg McKaskle

Controlling Front Panel LEDs

This is hopefully a simple problem, but I can't figure out what to search under. I have a program with two loops (Z Only Test and Full Test in Tester Program v2). They do not run at the same time. I would like both loops to interact with an LED on the front panel (Testing). How is this done?
Under Z Only Test, it works fine. I tried to connect it to the sequence (Full Test), but it tells me I can't do that. On odd sequences, for the most part, I would like to have the LED light (TRUE). On evens, off.
Attachments:
code.zip ‏143 KB

rbergs wrote:
Do you mean make the LED a shared variable? How do you do that? I clicked on it and changed it to a variable, but I thought that was like one of the others that I have. I'll give it a try and see what happens.
I would assume whatever works for this would also work for numerical displays as well.
No. I'm not even sure exactly what you mean by clicked on the LED "and changed it to a variable."
Right now you have only a single place where you use that LED. It has a terminal node on your block diagram within a while loop. I don't know how that fits into your overall program architecture as your VI is quite expansive. (Two tips, 1. Don't use stacked sequences. 2. Look into a state machine architecture)
All that happens at that point is your read from a shared variable called "Testing". I'm not sure from where else in your VI that you want to interact with that front panel indicator. Or whether it will conflict with the already written piece of code. I also don't know where this shared variable is written to. But the first idea is have the other sections of the code write to the shared variable and let this one update the front panel indicator.
The second idea is to create a local variable of the front panel indicator. Right click on the terminal within your code and select Create / Local Variable. But again, you will have to be careful with conflicts with the different portions of your code writing to the LED. This is also known as a "race condition".
(Yes you can use either shared variables to store numeric data, or create local variables of numeric controls or indicators.)
I'm a bit nervous about your code. It looks like you have a decent amount of LV experience as you have created quite a sophisticated VI there. However, it doesn't seem like it is easy to expand or modify. It takes up quite a bit of screen real estate. It doesn't use any subVI's even though a lot of the code seems to be duplicated or very similar. And it seems like it uses a lot of shared variables, probably more than necessary.
Message Edited by Ravens Fan on 05-29-2009 01:38 PM

Front panel led connectors cables problem

Anyone knows how to connect the cables for the front panel power and hdd switches and leds to the jumpers on the board? The cables have wordings printed on one side of the cables (power led.. hdd led.. etc).. i'm not sure which side should be facing up on the board ... is it the side with the wordings facing up or the opposite side without the printed wordings ? i'm worried that i may end up short circuiting the board if i connec them the wrong way round ... thanks

The are just switches, so there is no polarity to worry about. the led's are polarity sensitive, so If they don't work, just reverse the connection; no damage will occur.

How do I derive front panel led's from kstat?

/* compile with cc enclosure.c -lkstat */
#include <stdio.h>
#include <stdlib.h>
#include <kstat.h>
#include </usr/platform/sun4u/include/sys/envctrl.h>
main()
kstat_ctl_t*kc;
kstat_t *kp;
envctrl_encl_t *enc_info;
int i;
/* initialize the kstat interface */
kc = kstat_open();
if (kc == 0) {
perror("kstat_open");
exit(1);
/* find the inode cache link */
kp = kstat_lookup(kc, "envctrl", 0, "envctrl_enclosure");
if (kp == 0) {
fputs("Cannot find envctrl.0.envctrl_enclosure\n", stderr);
exit(1);
/* read the ks_data */
if (kstat_read(kc, kp, 0) == -1) {
perror("kstat_read");
exit(1);
printf("there are %d instances\n",kp->ks_ndata);
enc_info = (envctrl_encl_t *) kp->ks_data;
for (i=0; i < kp->ks_ndata; i++){
printf("loop value : %d\n",i);
printf("instance : %d\n", enc_info->instance);
printf("enclosure type : %d \n", enc_info->type);
printf("enclosure value : %d \n",enc_info->value);
printf("********************\n");
enc_info++;
kstat_close(kc);
return 0;
Returns...
There are 7 instances
enclosure value : 208
or
enclosure value : 192
depending whether one of the lights is flashing or not. I need to know how to tell if an error light is on.
How about the disk led's?

You don't actually need to pass anything to the Sub-VI.
Within the Sub-VI you can call up the chain of "higher" VIs, i.e. the VI call chain leading to the sub-VI in question being called. From here you can wire simply the text of the VI you require to an "Open VI reference" function, get a list of the controls or indicators and initialise them as you wish. I used this a few times for a custom "Print Parent Panel" VI.
Here's a pic of an example (LV 6.1)
Hope this helps
Shane.
Using LV 6.1 and 8.2.1 on W2k (SP4) and WXP (SP2)
Attachments:
SUB-VI-parent communications.png ‏19 KB

32AV502U Front Panel LED Flashing, No Video/Audio

We had a short power outage last night and ever since my 32AV502U set will not turn on. Instead the power LED just flashes on and off in a patter of long, short, short. I have tried leaving it unplugged for hours and still no luck. I held the power button down while it was unplugged too, but couldn't get it to do anything other than just have the LED flash.
I was wondering if anyone knew of a way to fix this.
Thanks

I've got the same issue. I found this TV at the electronics recycling area of my local landfill, so I have nothing invested in it so far, except a bit of research time. I tried calling Toshiba Customer Service to see if they would tell me what the long short short flashing light means, but since it's out of warranty, they wanted to charge me $35 to answer the question. It looks like someone tried working on it already. I got Toshiba's Service Material and reference Tips document for this TV, and followed the section for Dead Set on page 5. I do get the standby 5 volts on the P802 connector, but following the flowchart to the next step, I do not get 4.3 volts on pin 13 when the on/off button is pressed. The next step at pin 14 showing less than .07V also fails. That results in a "Suspect a problem with the power supply module. There's no further module level troubleshooting that I could find.
None of the capacitors are bulging, so that takes away an easy check. There hasn't been much in the way of component level troubleshooting that I could find.

LEDs on front panel

Employed my Vista Pavilion for several years without incident until last night when I noticed the top "on/off" button which usually glows a light blue was unlit.   I originally assumed a power glitch, so I just restarted the machine to note the following:
    Fans come on and the power supply seems OK, but the system did not boot.   The screen was just black with no characters or image/background. In fact, the screen's power saving mode soon engaged indicating the video card was not sending a signal. Never get to the BIOS screens.
     Now here is what I think may be significant: the green LED and blue LED in the front console were on continuously.
Sometimes, hardware manufacturers provide diagnostic information by way of the lights (e.g., washing machines).   In other words, turning on LEDs can provide state information. Is this true with HP hardware?
Some more clues which tell you what is not the problem. I happened to have a new power supply handy, so I traded it out with the same results.   In normal operation, the green LED indicates disk activity, so I just removed the disk entirely to see if the green light would go out.   Nope, still on steady.   The blue LED typically implies the WiFi operation but I rather doubt at this pre-boot state the WiFi would be working.
I traced the power button line (two grey wires) to a half-sized board in the rear. No breaks in the wire or bad connections.
Any ideas?

HP Pavilion Elite m9357c Desktop PC
Motherboard Specification, MCP61PM-HM (Nettle3)
http://h20564.www2.hp.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-c01357175
Don't understand this reference to a half-height board.
The Front Panel Header (9-pin, 2x5) on the motherboard is where those front panel LEDs and buttons are terminated.
EXAMINE Pictorial in the Internet link to motherboard (above).
HOWEVER, some HP Desktop models have a front LED to show the user of LAN or Wi-Fi connections.
That wire would connect to the network card or motherboard via a different connector.
Some Media PCs of this era (2008) had Infared connections (option) for remote control of TV tuner option card.
LEDs do not last forever (have a long, but finite life) and can fail due to DC over-voltage or surge conditions (environmental, component failure).
In addition, this Desktop PC is now 7 years old .... a long-life for any desktop.
IF the motherboard has failed (component failure, such as capacitors), then replacement may be best advice.

Centering Label Text over front Panel Indicator

How can I get the Text in the Label of a Front Panel LED Indicator Control in LabVIEW 2009 to be centered over the LED?
How can I change the Font an Font Size of the Text of a Label?

Hi,
Label to be center at the object.
There are many Ways like
1) what the JackDunaway has explained Text Settings Toolbar button.
2) Other you can dynamically change the property of label.
Like you can change programmically change label justification, size, color, and many property.
Just right click on object.Go to creat property node. refer screen shot for more help.
Thank you.
CLAD
Labiew programmer
Attachments:
Lebel property.png ‏133 KB
Lebel property.png ‏133 KB
Lebel property.png ‏133 KB

How to set front panel size to be same as one led?

Hello All,
LV2010
In documentation reads that minimum front panel size is one pixel. I need to create front panel which have same size as one led (see attachment). I'm not able to make front enough small just by dragging window borders. I also tried to change front panel size from File->Vi properties ->Window size but that didn't helped. How I can set front panel to smaller size?
Attachments:
Small_front_panel.vi ‏6 KB

I think I got it
In the window apperance option I removed everything except "Allow user to resize window" And the Run options. Then I ran the VI (continuosly since there is no loop) and resized it. After I stopped it, I then removed "Allow user to resize window" from the window apperance options.
P.S! If you try to resize my Vi now, it will pop back out for some reason.
Regards,
Even
Certified LabVIEW Associate Developer
Automated Test Developer
Topro AS
Norway
Attachments:
Small_front_panel (1).vi ‏6 KB

Can I use a colour palette control to set the colour of an LED on front panel?

Hi,
I want to allow the user of my LabView program to be able to set the colour of an enlarged LED on the front panel using a colour palette control also on the front panel. Is this possible or can the LED only be the colour it is set to in its properties dialogue box?
Thanks,
Dave.

The question is of course: "Does it really need to be a boolean LED that has a True/False and all the boolean logic???
If you just want an LED lookalike where the color can be easily controlled programmatically I would recommend a color box indicator instead. You can even customized it to look like an LED! The attached example (LabVIEW 7.1) shows both methods, but the color box option is programmatically much less messy (no bundling, no array building, no property nodes!).
(To make the LED color box indicator, I customized a plain color box and simply imported the graphic elements from the regular LED indicator.)
LabVIEW Champion . Do more with less code and in less time .
Attachments:
ColorBoxLED.vi ‏22 KB

How do you control LED lights on the front panel to identify the number of steps a stepper motor has taken?

I am controlling a stepper motor that is coupled with a valve with four outlets (using an Arduino). I've got a general understanding of how to control the motor, but I want LED lights on the front panel to light up that indicate which outlet the valve is currently at after the steps are taken. The method I'm thinking about involves a lot of repetitive code. I'm not that experienced with LabVIEW, I'm assuming I need some sort of loop structure but I don't know how to set it up in order to control the sequence of the LEDs. I've attached my current block diagram for a visual aid if needed.
Attachments:
Capture.JPG ‏33 KB

I was thinking about using the Stepper To Go and Stepper Write functions four separate times, using the same constants for the steps each time since the distance between each outlet is equivalent. The only difference would be what's connected to the "steps remaining" node, which would be the function that activates one of the four LEDs (if that makes sense). I was thinking that doing it this way would be a little counterintuitive since the only thing that needs to be changed is the LED indicator.

Satellite A200-1N1: "Satellite" LED on the front panel is not shining

Hi folks!
I notice that my LED with "Satellite" word on the front panel doesn't shine.
Do you have any assumptions about causes?

Hi Maresha,
The front 'logo' LED is enabled or disabled using a BIOS option 'Display Front Logo' which can be set to ON or OFF as you require. Access your BIOS settings (F2 during boot up) and check that this setting is set to 'ON'.
regards,

MCS 7845-H2 Front Panel LED's

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