The T2550 PAC is a high-performance programmable automation controller engineered to deliver cost-effective redundancy solutions for process industries. Developed by Eurotherm, this controller combines deterministic control with secure data recording capabilities, forming the foundation of a complete distributed control and recording environment. The system supports continuous analog, logic, and sequential control while enabling secure data recording at the point of measurement, all designed to maximize return on investment from your process.

Key Features & Advantages

Cost-Effective High Availability Redundancy: The T2550 PAC introduces E-Sync technology, an easy synchronization functionality that simplifies the deployment of redundant processor configurations. In duplex mode, the system provides complete redundancy of processors, power supplies, and network communications at a price-performance level previously unavailable in this category. Automatic commissioning is achieved by plugging the additional processor module into the redundant base and initiating synchronization with a single button press on the front panel. The system delivers bumpless changeover with automatic takeover, ensuring continuous operation without data loss during primary controller failure.

Secure Data Recording at Point of Measurement: The T2550 PAC incorporates secure data recording directly at the measurement source. By inserting the additional processor module, users enable redundant data logging with data stored in non-volatile flash memory. The secure format prevents tampering, making this solution ideal for applications requiring regulatory compliance and data integrity. Data can be periodically archived to primary, secondary, and tertiary FTP servers for long-term retention and historical analysis.

Flexible and Modular I/O Architecture: The system supports a wide range of I/O modules including analog input (2, 3, and 4-channel configurations), analog output (2-channel), digital input (4, 6, and 8-channel options), digital output (4 and 8-channel), relay output (4-channel), and frequency input (2-channel). Modules support multiple signal types including thermocouple, RTD, mA, mV, voltage, potentiometer, and pyrometer inputs. Hot-swap capability allows module replacement without system shutdown, minimizing downtime during maintenance.

Simplified Engineering and Maintenance: The T2550 PAC incorporates multiple features to reduce engineering effort and simplify lifecycle management. Auto I/O build functionality automatically detects and configures installed modules. Personality flash cards enable rapid system recovery and cloning. Clear status indication via front-panel LEDs provides immediate visibility into system health, redundancy status, and communication activity. The intuitive LINtools configuration environment supports online reconfiguration, allowing system modifications without interrupting process operation.

Comprehensive Communication Capabilities: The controller functions as either a standalone solution or an integrated component within a larger automation architecture. Communication options include Modbus TCP, serial Modbus RTU (configurable as master or slave), Profibus slave, and OPC. This flexibility enables seamless integration with PC-based SCADA packages, programmable logic controllers, and Eurotherm Visual Supervisor systems. The controller supports multiple network addressing methods including BootP, DHCP, fixed IP, and link-local addressing.

Advanced Control Functionality: The T2550 PAC is programmed using IEC 61131-3 compliant languages and features advanced PID control with auto-tuning capabilities. The system supports up to 64 analog inputs, 32 analog outputs, 128 digital inputs, and 128 digital outputs, with batch management and recipe functionality available. Setpoint programming supports eight channels with 32 segments each, suitable for complex thermal processing applications including retort furnaces, glass furnaces, sterilization, and freeze-drying processes.

Cybersecurity and Reliability: The T2550 PAC is designed with industrial cybersecurity robustness as a core consideration. The real-time operating environment ensures deterministic execution of control tasks, while the secure data recording format protects critical process information. The system achieves high availability through redundant CPU, power supply, and network configurations, with typical applications including building management systems, environmental monitoring, fermentation processes, and heat treatment equipment.

Applications

• Thermal Processing: Retort furnaces, glass furnaces, heat treatment, sterilization systems
• Life Sciences: Fermentation processes, freeze dryers, pharmaceutical manufacturing
• Industrial Infrastructure: Building management systems, environmental monitoring, HVAC control
• Process Industries: Chemical processing, food and beverage, batch manufacturing