Norm,
The following doc begins to show information related to FIFO: http://www.openser.org/dokuwiki/doku.php?id=fifo_relay
A review of the "ul_add" function shows that the parameters are a little different than those you have supplied.
It sure does. The only documentation I had been able to find was some very old SER documentation. The updated docs solved my problem immediately. Thanks for the help.
Doug