Re: [foxboro] Video Cards P91 & P92

I also have same problem to, i assume it's because the placement of monitors
which are (in my plant) located about 30 m from the CPU (P82)
When i tested to connect the monitor closely to CPU using standard video
cable (around 2 m length) the problem was gone, but when i tried to connect
remotely using 30 m video cable, the problem happened again.
Based on that test, i came to the conclusion that the problem exist because
of the length of the video cable which might require additional signal
strength booster or replace the video cable which has better quality (copper
or fibre based )which was recommended by Marcel Sieling (please see
attachement)

Best regards
Hendrik
DCS-APC Procee Control Engineer
PT. Pertamina (persero) RU II Dumai - Indonesia



On Tue, Mar 17, 2009 at 6:03 AM, <Jack.Easley@xxxxxxxxxxxx> wrote:

> I too have had recent problems with new video cables, although neither
> the cables nor monitors were purchased from Foxboro. Even though the
> video cable screws are tightened with pliers at the monitor, the video
> plugs are still loose enough to cause these strange color symptoms
> sometimes. Reseating them by hand temporarily fixes the problem. I have
> seen no problems on the PC end. I haven't figured out whether the video
> cable screws are too long, or what, as they do screw in well. This was
> just to let you know that all of the video cable problems out there are
> video cable crimping problems.
>
> Jack Easley
> Sr. I&C Technician
> Luminant Power, Martin Lake Plant
> Phone 903.836.6241
> jack.easley@xxxxxxxxxxxx
> -----Original Message-----
> From: foxboro-bounce@xxxxxxxxxxxxx [mailto:foxboro-bounce@xxxxxxxxxxxxx]
> On Behalf Of Goldie, Shaun S
> Sent: Monday, March 16, 2009 2:56 PM
> To: foxboro@xxxxxxxxxxxxx
> Subject: Re: [foxboro] Video Cards P91 & P92
>
> There are crimp and solder versions of these cables
> I heard that crimps were the culprits which I find surprising
> (plug not fully populated = crimp)
>
> I came across both types while diagnosing video picture quality and they
> both perform poorly at 30M
> Shaun
>
> -----Original Message-----
> From: foxboro-bounce@xxxxxxxxxxxxx [mailto:foxboro-bounce@xxxxxxxxxxxxx]
> On Behalf Of Larry Mantei
> Sent: Tuesday, 17 March 2009 06:42
> To: Freelists Foxboro
> Subject: [foxboro] Video Cards P91 & P92
>
> Has any one ran into issues with the Video cards on the P91 & P92 units.
> We are running dual monitor video card on both our P91 & P92 with a
> y-cable. This is happening on both units. The screen goes blueish-purple
> every once and a while. By wiggling the cable the problem goes away. I
> thought it was a marginal y-cable so I replaced them but this was not
> the cause.  I also check the stress on the cables, and made sure that
> they have slack.
>
> Any Ideas, or is it just the connection to cards?
>
>
> Thank you for your support.
> Larry Mantei
> Process Control
> Fairbanks Gold Mining
> PO Box 73726
> Fairbanks, Alaska 99707-3726
> (907)488-4653 ext. 2306
>
> larry.mantei@xxxxxxxxxxx
>
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