TAC I/NET 7716 Process Control Unit Manual

This document describes the TAC I/NET 7716 Process Control Unit (PCU), a LAN-based controller for direct digital control and monitoring of process functions such as environmental control, energy management, and trending. It details the controller’s monolithic hardware design, features like adaptive PID algorithms, universal inputs, configurable outputs, peer-to-peer token passing LAN, downloadable firmware, and advanced control functions including demand limiting and event-initiated sequences.