Din Rail Thermal Controller Is Scalable

Fabricated for panel mounting with no integrated display, the RFS DIN-rail mount temperature controller allows for scalability without the added wiring common to similar components. All parameters are accessed via a Modbus RS-485 network that provides power, field communications, and coordination with the common I/O unit. Users can start with one temperature loop and then scale up to 12 loops without any additional wiring. The controller provides up to two control outputs, and a universal thermocouple or RTD input is coupled with a continuous auto-tuning PID control algorithm. Other features include an RS-485 driver with an input impedance four times higher than the norm, allowing up to 120 RFS units to be connected to a single master. Also available is a remote-mount, tri-color backlit text display, which acts as an operator station and supports up to 30 RFS units. For more information, contact Monique Watkins at EUROTHERM CONTROLS INC., Leesburg, VA. (703) 669-1324.