The other thing you might consider is connecting the RSP to a REAL block's= VALUE parameter=2E You can change the VALUE (and thus the setpoint) witho= ut opening the ICC=2E Of course, there is the issue of access class=2E If the operator can 'see= ' the detail display, he can source the RSP and get to the REAL block=2E Just another thing to think about=2E JWS=20 Original Message: ----------------- From: duc=2Edo@dowcorning=2Ecom Date: Wed, 15 Dec 2004 10:56:36 -0500 To: foxboro@freelists=2Eorg Subject: Re: [foxboro] Lock Setpoint Value in Controller > You might try >=20 > SPT CName:BName=2ESPT=2EValue=2E0 No, this is not possible=2E As Chuck Jones wrote: > In any event, I don't think it is possible to connect the SPT parameter = to > anything=2E You can connect to it and read it, but you can't connect anything > to it and write to it=2E That's why I go with the remote setpoint=2E A quick test in the CIOCFG will tell you that this is the case=2E I know this as I happen to have to work through this just yesterday=2E We = used Chuck's solution of locking the block in remote (REMSW :Blockname=2EREMSW= =2E1) and expanded on it by securing the remote setpoint value using a similar link back to itself with a value (RSP :Blockname=2ERSP=2E40=2E0)=2E Duc --=20 Duc M=2E Do Dow Corning Corp=2E Carrollton Plant Carrollton, KY, US -----Original Message----- From: foxboro-bounce@freelists=2Eorg [mailto:foxboro-bounce@freelists=2Eorg]On Behalf Of Nasif, Mohamed Sent: Wednesday, December 15, 2004 10:10 AM To: 'foxboro@freelists=2Eorg' Subject: Re: [foxboro] Lock Setpoint Value in Controller Dan, You might try SPT CName:BName=2ESPT=2EValue=2E0 I wish this helps=2E Thanks=2E Regards, Moh Nasif -----Original Message----- From: Karppi, Dan (SudburySmelter) [mailto:DKarppi@Sudbury=2EFalconbridge=2Ecom] Sent: Wednesday, December 15, 2004 7:44 AM To: 'foxboro@freelists=2Eorg' Subject: [foxboro] Lock Setpoint Value in Controller Hello List Members, I want to lock the value of the setpoint in a PIDA controller so that it cannot be changed from the faceplate=2E I recall that in an earlier post = it was suggested that a configured parameter can be linked to itself in the block configuration to lock its value=2E I've searched the archives but cannot find this post=2E Does anyone remember how to do this? Thanks in advance, Dan Karppi CCST Instrument Technologist Falconbridge Limited Falconbridge, ON Canada =20 =20 _______________________________________________________________________ This mailing list is neither sponsored nor endorsed by Invensys Process Systems (formerly The Foxboro Company)=2E Use the info you obtain here at your own risks=2E Read http://www=2Ethecassandraproject=2Eorg/disclaimer=2E= html =20 foxboro mailing list: http://www=2Efreelists=2Eorg/list/foxbor= o to subscribe: mailto:foxboro-request@freelists=2Eorg?subject=3Djoi= n to unsubscribe: mailto:foxboro-request@freelists=2Eorg?subject=3Dleav= e =20 -------------------------------------------------------------------- mail2web - Check your email from the web at http://mail2web=2Ecom/ =2E _______________________________________________________________________ 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: http://www.freelists.org/list/foxboro to subscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=join to unsubscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=leave