The following are available on enterprise.modicon.com 1 Nov 1997 Modicon Micro Controllers Ladder Logic Manual (890USE14600, Version 1.0) 1 Jan 1997 110CPU512/612 Modicon Micro PLC Hardware User Manual (890USE14500, Version 1.0) And a 2001 catalog as well. I can e-mail them to you meirsag at yahoo dot com