Hi ... I have a SMEMA 9851 protocol question. To optimize for speed, I would like to partially load a board from the upstream machine as soon as one is presented, and use a walking beam any time later to fully pull in the board when my work area is clear. My question: is it OK to switch my status MachineReady to MachineNotReady before the board has cleared the upstream machine's exit sensor (in the timing diagram, this means doing T4 before T3 has happened)? Thanks, Dirk. --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 15.0 To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 -----------------------------------------------------