The SEL-3505-3 real-time automation controller from Schweitzer Engineering Laboratories provides a fully programmable IEC 61131-3 logic engine with built-in function blocks, including PID. The 6.96- by 5.54- by 2.25-inch controller can be cabinet or DIN rail mounted. It is designed for data concentration, protocol conversion and control applications. Security features include centralized authentication via lightweight directory access protocol, logging of all user access, port control, intrusion detection and alarming. 509/332-1890; www.selinc.com.