I have worked on a project sometimes back implementing intelligent alarm management. What we did is to write a SEQ code which will inhibit or un-inhiit alarms at certain defined conditions. For example: We inhibit a pump alarm until there is confirmation from the DCS that the pump is running and then un-inhibit it. If the pump stop for x-second and it is supposed to be running then we generate the alarm and than suppress it again until the pump is turned on the second time. The SEQ block run every 2 seconds. This scheme works very well.. It does take a bit of work but we do one alarm at a time with the goal to minimize all lunatic alarms. Joe Wu DCS contract support group ----- Original Message ---- From: Michael Kessler <mkessler@xxxxxxxxxxxx> To: foxboro@xxxxxxxxxxxxx Sent: Tuesday, December 19, 2006 6:21:48 AM Subject: Re: [foxboro] alarm inhibiting vs. alarm disabling - process summary reporter > 2. You can send a HEX pattern to the AIN's INHALM parameter. Again this = > parameter is connectable and settable, so any display or program can set = > the hex pattern if there is no connection. For example a pattern 0x0003 = > will inhibit HIGH and LOW alarms. > You can also toggle the HEX bits individually from block detail in Select. For example, to inhibit only the HI alarm, 1. Call up block detail for the AIN. 2. Click Alarms 3. From Select pick the HIABS parameter. 4. Click Toggle A black INHIBITED should appear indicating that the HEX bit to disable HIABS has been set. mk _______________________________________________________________________ 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 __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com _______________________________________________________________________ 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