Re: [foxboro] Reduce IFL's for FBM
- From: "Dirk Pauwels" <dirkpauwels_1@xxxxxxxxxxx>
- To: foxboro@xxxxxxxxxxxxx
- Date: Thu, 12 May 2005 07:40:08 +0000
We're using PLB's, cause it's the easiest way to configure Interlocks,
unfortunately the number of IFL's also limit the interlocking, so we''re
also using seq/calc etc for interlocking. The disadvantage of using seq code
interlocking is that the blocks can still be activated via select. With PLB
interlocks, the blocks cannot be operated from the select unless all
interlocks are OK.
For Motor and valve control we use GDEV's and PLB's, for valves we use 2
cin's/ofl's for open/close feedback and 1 CO for open and close. For motors
we're only using the running cin/ofl and 1 CO. The ofl's are connected to
the DEVLM's of the GDEV. STAIND is used to show status on screen
We can attach 8 motors to an FBM(2)41 or 42 card, or 4 valves. The number of
IFL is not really the limit here, but there are only 8 Co's on a FBM41/42.
Using FBM242 you would have 16 Co's
I'll send Daniel an example offlist.
Rgds,
Dirk Pauwels - DCS coordinator
Engineering dept.
Lawter International BVBA
An RSM Company
Ketenislaan 1c ? Haven 1520
B-9130 Kallo, Belgium
T. +32.(0)3.570.95.97/ Mob. +32.(0)497.428.300
F. +32.(0)3.570.16.09
E mail: dirk.pauwels@xxxxxxxxxx
>From: danvar@xxxxxxxxxxxxxx
>Reply-To: foxboro@xxxxxxxxxxxxx
>To: foxboro@xxxxxxxxxxxxx
>Subject: [foxboro] Reduce IFL's for FBM
>Date: Wed, 11 May 2005 10:02:01 -0500
>
>Hi,
>Generally, in my job, the people configure the ladder like PLB's. (FBM217-
>FBM242), but in the ladder for every motor it has spent 4 IFL's, leaving
>only
>8 motors by FBM.
>I've been thinking in try to reduce the number of IFL's for FBM. maybe,
>using
>GDEV block, what do you think??, do you have any example that can help me?,
>
>Thanks for your help.
>
>Daniel Vargas
>
>
>
>
>
>Telesat, más fácil...más Internet.
>http://www.telesat.com.co/
>
>
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