> Yup, but what I meant was that besides those 3-4 blocks in alarm > (showing a priority in FoxSelect) there might be blocks which are no > longer in alarm but haven't been acklowledged yet (i.e., block was in > alarm, alarm went away but no one acknowledged). Ah, now I see what you mean. There could definitely be blocks that returned from alarm but are still unacked. But wouldn't ACKing at the compound detail display take care of that situation? Per the block book B0193AX rev.N on a compound's UNACK bit, page 457: "The UNACK alarm acknowledge output parameter allows you to propagate alarm acknowledge actions to all blocks in a compound." Mike Adams Mitsubishi Polyester Film, LLC Greer SC, USA 864-879-5231 _______________________________________________________________________ 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