Digital guide
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Yokogawa UT551-02 UTAdvanced Digital Controller with Ethernet
Product Introduction: A 1/4 DIN advanced process controller with dual-loop control, ladder logic, and Ethernet communication, designed for precise temperature and process control in complex industrial systems.
Technical Specifications:
- Control Loops: 2 independent control loops
- Input Type: Universal (thermocouple, RTD, mV, V, mA)
Detailed content
- Control Outputs: Relay, voltage pulse, 4–20 mA DC (2 sets for heating/cooling)
- Communication: Ethernet (standard) + optional RS-485, PROFIBUS-DP
- Display: 14-segment color LCD with bar graph
- Ladder Logic: Up to 1000 steps for custom sequence control
- Program Segments: 20 program segments per loop
- Power Supply: 100–240 V AC (50/60 Hz)
- Dimensions: 96 × 96 × 110 mm (1/4 DIN)
Functional Features:
- Dual-loop simultaneous control for complex heating/cooling processes
- Built-in Ethernet for remote monitoring and SCADA integration
- Ladder logic enables custom automation sequences without external PLC
- Advanced PID with auto-tuning and overshoot suppression
- Recipe management for quick production changeovers
- Comprehensive self-diagnostics and alarm functions
Application Scenarios: Plastic extrusion, heat treatment, semiconductor manufacturing, food processing, and industrial furnaces requiring advanced dual-loop control and network connectivity.
