I used the GDEV after coming from Brand H, looking for something equivalent to the "digital composite" block on that system. The GDEV is not quite equivalent (I *really* miss 3-state capability), but it looked pretty good for this sort of thing. I later looked at some of the other blocks (VLV, MTR, MOVLV, et al). Some of these had more intuitive faceplates than the GDEV, but they generally left me wanting in some way or another. And the parameters are often different, so I have to remember more to use them all. Because of that last point, and training/consistency issues, I've pretty much standardized on "best"/most functional blocks in a class (PIDA, GDEV, REALM...) even if all the applications of these do not require all of the block's functionality. Fortunately even my CP30s can handle it so far :) One thing I'd like to see is state labels on COUTs so I could use them in operator-facing, output-only applications. Corey Clingo BASF Corporation, Freeport, TX Jerry Hidahl <Jerry_Hidahl@xxxxxxxxxxxx> Sent by: foxboro-bounce@xxxxxxxxxxxxx 09/27/2006 02:18 PM Please respond to foxboro@xxxxxxxxxxxxx To foxboro@xxxxxxxxxxxxx cc Subject Re: [foxboro] GDEV functionality - was Foxboro's programming We've use the GDEV extensively since '97. It is so powerful, that you must be careful how you use it (, Grasshopper). There are so many options in the configuration, that it's easy to overlook something or get it wrong. It's so general that the faceplate is not at all self evident. With all that said, it certainly is the best way to put together discrete I/O into useful controls. Jerry Hidahl Huntsman, Port Neches, TX _______________________________________________________________________ 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