Re: Case sensitivity in DM Variable names The DM is case insensitive to its DM variable names. Thus, the DM variable DMCMD can be used as DMCMD or dmcmd. The upper case form is preferred. As an aside, for those DM global variables that are implemented as OM variables, the full name is <dmName><varName> where: <dmName> is the DM name in UPPER case and <varName> is the DM variable name in UPPER case. The OM is case sensitive. So, the DM variable DMCMD in WP0001 may be referenced as dmcmd or DMCMD in a DM script, but if the OM is used to access it, the reference must be to WP0001DMCMD not wp0001dmcmd. Re: Your overlays The reason the overlays are built using different variables is that the designer was providing support for multiple overlays to be raised at the same time. If the same DM variables, e.g., P1 and P2, were used in all of your overlays only one of them could be "up" at the same time. I've never done it, but I understand that you can work around this issue with FoxView. I believe the approach uses the alias feature. Perhaps someone else can explain the mechanics of the mechanism. Regards, Alex Johnson Invensys Systems, Inc. 10900 Equity Drive Houston, TX 77041 713.329.8472 (voice) 713.329.1700 (fax) 713.329.1600 (switchboard) alex.johnson@xxxxxxxxxxxxxxxx -----Original Message----- From: foxboro-bounce@xxxxxxxxxxxxx [mailto:foxboro-bounce@xxxxxxxxxxxxx] On Behalf Of Wilson, Brad Sent: Friday, January 11, 2008 8:41 PM To: foxboro@xxxxxxxxxxxxx Subject: [foxboro] DM relative picks and dm variables question I'm working on a project that has 4 copies of every quarter-screen overlay. All the overlays are configured for position 1 (UL) and the quadrant is defined in the ov command. My question is about the relative picks used when opening these overlays. The overlay to be used in UL uses p1:p2 for C:B, while the UR overlay uses p4:p5, LL overlay uses p7:p8, and LR overlay uses p10:p11. Is this a requirement that the same overlay in different positions must use different variables to avoid confusion on the screen? I thought these variables were run-time substitutions. = In addition, I find many overlays that use P1/P2 (capital letters) instead of p1/p2, and others that use P1/P2 in addition to p1/p2, even though the capital variables are not set in the dmcmd call. These appear to be sloppy overlay configuration, but it seems that DM is able to translate the upper-case to lower-case on the fly, because I'm not getting smurfed connections in the overlays. = Brad Wilson brad.wilson@xxxxxxxxxxxxxxxx Invensys Process Systems, Inc 1090 King Georges Post Rd, Suite 204 Edison, NJ 08837 732-661-4012 o 732-874-0087 c = "This e-mail and any associated files are intended solely for the individual or entity to whom they are addressed. Please do not copy it or use it for any purposes, or disclose its contents to any other person. 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If you have received this e-mail in error, you are on notice of its status. Please notify us immediately by reply e-mail and then delete this message from your system. Thank you for your co-operation. You may contact our Helpdesk on +44 (0)20 7821 3859 / 2105 or email inet.hqhelpdesk@xxxxxxxxxxxxx This e-mail and any attachments thereto may be subject to the terms of any agreements between Invensys (and/or its subsidiaries and affiliates) and the recipient (and/or its subsidiaries and affiliates). = = _______________________________________________________________________ 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. 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For a list of European legal entities within t= he Invensys Process Systems business group, please click here http://www.in= vensys.com/legal/default.asp?top_nav_id=3D77&nav_id=3D80&prev_id=3D77. If you have received this e-mail in error, you are on notice of its status.= Please notify us immediately by reply e-mail and then delete this message = from your system. Thank you for your co-operation. You may contact our Help= desk on +44 (0)20 7821 3859 / 2105 or email inet.hqhelpdesk@xxxxxxxxxxxxx T= his e-mail and any attachments thereto may be subject to the terms of any a= greements between Invensys (and/or its subsidiaries and affiliates) and the= recipient (and/or its subsidiaries and affiliates). _______________________________________________________________________ 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. 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