The HC900 controller provides a cost-effective platform for combining loop and logic control. The HC900 is ideal for unit process applications that require a combination of analog process control functions and discrete control actions. When networked with the Experion system for supervisory control, the HC900 controller provides an ideal unit controller for standalone processes, skid-mounted systems and other periphery operations in a process facility.

The HC900 controller offers a blend of analog process, logic and sequencing control algorithms. There are no preset limits on the number of times a function block type may be instantiated in a controller (limit based on memory availability and required scan rate). Features include:

• 1,920 I/O points
• Compact 4, 8 or 12 I/O slot rack sizes
• Open Ethernet network connectivity
• Peer-to-peer data exchange
• Automated loop tuning
• Setpoint programmers
• Setpoint schedulers with multiple ramp/soak outputs andultiple 64-step sequencers

This powerful platform, combined with a tightly integrated touch screen operator interface (900 Control Station) that supports a variety of preformatted displays with trending and data storage, is easily applied across many industries. The HC900 is configured using PC-based Windows configuration software (Hybrid Control Designer), which utilizes graphical function block configuration techniques and supports run-mode edit capability to help minimize process interruptions and provides advanced monitoring features.

The HC900 redundancy capability allows it to be used in applications where maximum process uptime is needed. The redundant platform provides redundant CPUs, power supplies and network communications for additional process security.

The HC900 controller and I/O platform, in tandem with the Hybrid Control Designer PC-based software, shortens design time and simplifies control strategy development. This results in a total installed cost advantage with reduced engineering and process startup time.