I used the tim function. Then outputted to RO01, which goes to a realm block. Alarm it at the time needed to reset the total. Connect the HAIND on the alarm block to BI01 in the calc block. Trigger a OSP to BO01 and that Clears the Totalizer. I have one set up to clear the same total at 4:30 AM and PM using HAIND and HHaind from the REALM block. You can watch the time in seconds this way. Loyd Greer Great Lakes Chemical _______________________________________________________________________ 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