Thanks for the suggestions, I new there must be a better way. I have used Francios solution, except I used a Calc block with an OSP so that the CLEAR in the ACCUM block only stays TRUE for 1 sec. Otherwise the ACCUM block misses roughly a minute of accumulation. Brian -----Original Message----- From: foxboro-bounce@xxxxxxxxxxxxx [mailto:foxboro-bounce@xxxxxxxxxxxxx]On Behalf Of BrianLong Sent: Thursday, October 20, 2005 7:32 AM To: Foxboro Subject: [foxboro] Clearing Accum block There are a number of ways to do this but I though someone out there might have a "better or clever" way. I need to clear an ACCUM block at the top of every hour. Thanks in Advance, Brian Long Arkansas Kraft _______________________________________________________________________ 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 _______________________________________________________________________ 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