Re: [foxboro] 1-5ma input on a FBM201

IOMOPT equals 0 - the input should be in counts (0-64000 for normal
range)
IOMOPT equals 2 - the input should be in engineering units


0 is used in the first example for the second block.
2 is used in the second example for the second block.


For some reason or another an equals sign followed by a number gets a 3D
stuck in between.

So, if I type =3D,1

You see =3D, 3D, 1

Equals signs are also inserted if there is a blank at the end of a line.

Strange, but true.


Regards,

Alex Johnson
Invensys Process Systems
10900 Equity Drive
Houston, TX 77041
713 329 8472 (voice)
713 329 1600 (switchboard)
713 329 1700 (fax)
alex.johnson@xxxxxxxxxxxxxxxx
 =


-----Original Message-----
From: foxboro-bounce@xxxxxxxxxxxxx [mailto:foxboro-bounce@xxxxxxxxxxxxx]
On Behalf Of Bruley, Peter T
Sent: Tuesday, April 29, 2008 4:23 PM
To: foxboro@xxxxxxxxxxxxx
Subject: Re: [foxboro] 1-5ma input on a FBM201

Hi Alex

        I am sorry but I don't recognize the IOMOPT options that you
specif=3D
ied below (3D1, 3D0, etc.) maybe the list server is doing something
weird d=3D
o to the font that you are using?

        Are there more options for IOMOPT than the standard 0,1,3 ?

Thanks

Peter

-----Original Message-----
From: foxboro-bounce@xxxxxxxxxxxxx [mailto:foxboro-bounce@xxxxxxxxxxxxx]
On=3D
 Behalf Of Johnson, Alex P (IPS)
Sent: Tuesday, April 29, 2008 3:58 PM
To: foxboro@xxxxxxxxxxxxx
Subject: Re: [foxboro] 1-5ma input on a FBM201

Peter,

It seems to me that you could do it with two AINs. I think there are two
ap=3D
proaches that would work, but I can't try them. As they said in my old
math=3D
 texts, the proof is left to the student. :)


Option 1 - Scaled counts
Create two AINs. The first has IOMOPT=3D3D3D1 and is used to read your
physic=3D
al input. Use the scaling factors on the block to change the raw counts
so =3D
that whatever you get at 5ma is scaled to 64,000.

Connect that block's output to the MEAS of the second AIN
(IOMOPT=3D3D3D0). I=3D
 think it will behave as you desire.


Option 2
Create two AINs. The first has IOMOPT=3D3D3D1 and is used to read your
physic=3D
al input and scale 0-5ma as you want it in engineering units.

The second AIN would have IOMOPT=3D3D3D2 and take in that measurement. If
you=3D
 set the scales properly, I think the OSV/BAD will kick in.


Of course, free advice is worth what you pay for it. :)

Regards,
 =3D3D

Alex Johnson
Invensys Process Systems
10900 Equity Drive
Houston, TX 77041
713 329 8472 (voice)
713 329 1600 (switchboard)
713 329 1700 (fax)
alex.johnson@xxxxxxxxxxxxxxxx
 =3D3D


-----Original Message-----
From: foxboro-bounce@xxxxxxxxxxxxx [mailto:foxboro-bounce@xxxxxxxxxxxxx]
On Behalf Of Bruley, Peter T
Sent: Tuesday, April 29, 2008 3:44 PM
To: Foxboro@Freelists. Org (foxboro@xxxxxxxxxxxxx)
Subject: [foxboro] 1-5ma input on a FBM201

Gentlemen:
        I am trying to use a FBM201 to measure 1-5ma input.

        I am using an AIN & can scale the output to read 0-100% for
1-5ma i=3D
n however I don't get the OOS/BAD i/o bits set when I go over/under the
OSV

        The AIN block doesn't have a SCI for:  Linear 3200 to 1600 ( 1
to 5=3D
 mA)

        Is there any way to set the raw counts scale in the AIN block
manua=3D
lly?


Thank You,

Peter Bruley

Plant Process Computer Analyst
Xcel Energy - Sherco Generating Plant
13999 Industrial Boulevard
Becker, MN, 55308
(763) 261-3821
Peter.T.Bruley@xxxxxxxxxxxxxx



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This e-mail and any associated files are intended solely for the individual=
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any purposes, or disclose its contents to any other person. Further, this e=
-mail and any associated files may be confidential and further may be legal=
ly privileged. This email is from the Invensys Process Systems business uni=
t of Invensys plc which is a company registered in England and Wales with i=
ts registered office at Portland House, Bressenden Place, London, SW1E 5BF =
(Registered number 166023).  For a list of European legal entities within t=
he Invensys Process Systems business group, please click here http://www.in=
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If you have received this e-mail in error, you are on notice of its status.=
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