Re: [foxboro] ECB8 parameters online edits
- From: Jorge_JS <jorge_js@xxxxxxxxxxx>
- To: lista foxboro <foxboro@xxxxxxxxxxxxx>
- Date: Wed, 25 Feb 2009 00:04:30 +0000
I have added rungs (and deleted them) without any isue using the ladder editor
and it doesn't affect other conected parameters (no reset "true-false-true" for
example). But when editing parameters into the block like IFLs (not the logic)
i'm not sure about a posible momentary transition. Maybe you can FORCE ON/OFF
the output values while editing and CANCEL FORCE after to freeze outputs from
the PLBVIEW app.
Jorge Jimenez
Resirene Tlaxcala, Mexico
> From: Gonzalo.Diaz@xxxxxxxxxxxxxxxxx
> To: foxboro@xxxxxxxxxxxxx
> Date: Tue, 24 Feb 2009 14:25:20 -0300
> Subject: Re: [foxboro] ECB8 parameters online edits
>
> In addition to the original question... I have to add a few discrete I/O
> points to a existing PLB. This PLB does have 3 DO's wich are used to command
> the 3 main valves of the plant. I did modify the ladder (adding just 4 rungs
> in IACC Ladder Editor) but I do not know if this "add" operation does have
> any impact on the current running FBM...I DO NOT want to see this FBM go down
> and up or re-initialize or seeing the outputs going from one to zero and back
> to one. I just cannot allow that.
>
> So, the answer from Jorge does apply to this case or not? Just want to know
> if this operation affects the FBM or not.
>
> Regards,
>
> Gonzalo
>
> -----Mensaje original-----
> De: foxboro-bounce@xxxxxxxxxxxxx [mailto:foxboro-bounce@xxxxxxxxxxxxx] En
> nombre de Jorge_JS
> Enviado el: Martes, 24 de Febrero de 2009 14:12
> Para: lista foxboro
> Asunto: Re: [foxboro] ECB8 parameters online edits
>
> If you edit ladder logic "online" the current operation of the system is not
> affected (only the especific rungs you changed) and there is no
> initialisation. If you edit the block parameters it will initialize as normal
> blocks (when ever you use the DONE button). Thats what the "teacher" told me.
>
> Jorge Jimenez
> Resirene Tlaxcala, Mexico
>
>
>
>
>
> > From: kashifijaz93@xxxxxxxxxxx
> > To: foxboro@xxxxxxxxxxxxx
> > Subject: [foxboro] ECB8 parameters online edits
> > Date: Tue, 24 Feb 2009 10:10:27 +0500
> >
> > Dear list,
> >
> >
> >
> > If we want to change the ECB8 parameters online for FBM running ladder
> > logic, what is the impact. Will it accept the ECB8 parameter chagnes online
> > without ladder or FBM initialisation?
> >
> >
> >
> > Regards,
> >
> >
> >
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> _______________________________________________________________________
> This mailing list is neither sponsored nor endorsed by Invensys Process
> Systems (formerly The Foxboro Company). Use the info you obtain here at
> your own risks. Read http://www.thecassandraproject.org/disclaimer.html
>
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