Symphony DCI System Six
In 1979 DCI-4000 was introduced, providing redundant controllers with flexible I/O arrangements. Running a modular controller language called Controlware, it interfaced via a redundant proprietary network to operator interfaces. DCI-5000, introduced in 1985, provided an open network interface using redundant Ethernet communications. In 1992 System Six with redundant rack mounted Distributed Control Units and a flexible I/O mix was introduced. The operator interface implemented X-Windows and MS Windows based products. DCI System Six became part of the Symphony family of products in 1997. Advancements included the introduction of Windows-based products, open communication protocol, increased speed and memory capacity, and a multi-user engineering environment. In 2002, Symphony DCI began its next step in the evolution process with the introduction of Industrial IT enabled products, S800 & S900 I/O.