Message-ID: <15636514.1075862551847.JavaMail.evans@thyme> Date: Mon, 19 Nov 2001 08:11:34 -0800 (PST) From: ahafner2@csc.com To: set@ercot.com Subject: Interval Data Question Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-From: ahafner2@csc.com@ENRON X-To: set@ercot.com X-cc: X-bcc: X-Folder: \CDEAN (Non-Privileged)\Dean, Clint\Deleted Items X-Origin: Dean-C X-FileName: CDEAN (Non-Privileged).pst Can you please clarify how interval data should be reported? In the SR test scripts, there are up to three different values reported for interval usage: 1. The value reported in the QTY02 of the PTD*BO loop 2. The value calculated from data provided in the PTD*BO loop [Ending Read (MEA06) - Beginning Read (MEA05) * Meter Multiplier (MEA03)] 3. Sum of intervals in PTD*PM loop Most of these differences are due to rounding issues. Meaning that the number of decimal places is inconsistently applied. Some of these rounding issues can be significant on large usage values. What is the standard for these variances or the percent of tolerance? My expectation is a clean tie (validation) between the three values listed above. And, for the validated usage value from the 867 to tie out to the usage reported on the 810. Is this an unrealistic expectation? Thanks a bunch, Allyson Hafner EDI Manager CSC Energy Services 614-737-1160