CAMAC Progress Report

                     Week Ending: August 31, 2001
                               Week: 31


Tom Folkers:
     1. Other issues keep me busy all week.

Tom Sargent:
     1. Wrote logic to read the parallel I/O inputs to check for error 
        conditions.  I wrote code to drive the parallel I/O outputs to 
        control the Krupp rack.  The parallel input ports are jumpered 
        to simulate the inputs from the Krupp rack. Diagnostic print 
        commands allow dumping the state of the inputs and outputs and 
        flags those conditions that prevent the drive from operating.
     2. New state-driven drive logic was added to allow the servo 
        program to sequence through a start-up of the Krupp rack, 
        being tolerant of relay timing delays.  It also continuously 
        monitors for operator input and for any error conditions that 
        might appear on the inputs from the Krupp rack (limit 
        switches, servo failure, etc.).  This appears to work. When 
        the system is driving, manually causing an error condition bit 
        to go active, causes it to ramp that axis down to 0 speed. 
        When the error condition goes away, servo resumes driving and 
        catches up to the object being tracked.
     3. New message output code logs messages to Monitor to record 
        when the drive starts or stops and, if it stopped, what 
        signals caused it to stop.

Pete Hubbard:
     1. Finish KRUPP rack simulator for testing software.
     2. Starting on documentation and drawing update for Tracker 
        interface chassis, DBE  counter interface chassis, and Tracker 
        Traquair interface chassis.

Dave Ashby:
     1. No Report.