I am using V8.3 with IACC and have added rungs with no issue. IACC should only download changed parameters/ladder logic and not affect control of other rungs on the same ladder. Chris On 2/24/09, Gonzalo Díaz <Gonzalo.Diaz@xxxxxxxxxxxxxxxxx> wrote: > > 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, > > > > > > > > _________________________________________________________________ > > Drag n' drop-Get easy photo sharing with Windows Live(tm) Photos. > > > > http://www.microsoft.com/windows/windowslive/products/photos.aspx > > > > > > _______________________________________________________________________ > > 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 > > > > foxboro mailing list: //www.freelists.org/list/foxboro > > to subscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=join > > to unsubscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=leave > > > > _________________________________________________________________ > Chatea en Messenger desde Hotmail. > http://download.live.com/messenger > > > _______________________________________________________________________ > 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 > > foxboro mailing list: //www.freelists.org/list/foxboro > to subscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=join > to unsubscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=leave > > > > _______________________________________________________________________ > 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 > > foxboro mailing list: //www.freelists.org/list/foxboro > to subscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=join > to unsubscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=leave > > _______________________________________________________________________ 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 foxboro mailing list: //www.freelists.org/list/foxboro to subscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=join to unsubscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=leave