Tim, I can not explain the latency, but have you tried using the map file instead of the IND block's connectionless connection? I would normally try to use the aos mapping function in preference to the IND block, because the IND block connection creates broadcast messages on every read or write. The mapping function is looked after by foxapi and is far more reliable than an IND block. Richard Wetton..... -----Original Message----- From: Lowell, Tim: [mailto:Tim.C.Lowell@xxxxxxxxxxxxxxxxxx]=20 Sent: Thursday, 18 November 2004 5:44 AM To: foxboro@xxxxxxxxxxxxx Subject: [foxboro] Setting Application Objects from IND blocks We are working on a DMCplus application where we have to set the values of Application Objects, which were generated by DMCBridge, using an IND sequence block. We are noticing a great deal of latency, upwards of 1 or 2 minutes, between the time the IND sequence code runs and when the Application Object value gets set. Here is an example bit of IND HLBL code: =20 IF value1 > value2 :APP_OBJ_CMPND:APP_OBJ.PARAM :=3D value3; ENDIF =20 Is this fairly typical of IND sequence code performance? Is there something special about Application Objects vs. regular CP blocks that might cause this? Is there a setting somewhere that maybe we have left at the default that governs how fast AO's can be written to? =20 Any ideas would be appreciated. =20 Thanks, =20 Tim Lowell Control Systems Engineer ConocoPhillips Trainer Refinery (610) 364-8362 tim.c.lowell@xxxxxxxxxxxxxxxxxx =20 =20 =20 _______________________________________________________________________ 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 =20 foxboro mailing list: http://www.freelists.org/list/foxboro to subscribe: = mailto:foxboro-request@xxxxxxxxxxxxx?subject=3Djoin to unsubscribe: = mailto:foxboro-request@xxxxxxxxxxxxx?subject=3Dleave =20 _______________________________________________________________________ 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