Product Introduction

Model Interpretation

Technical Parameters

• Processor: 800 MHz 32-bit RISC CPUABB

• Memory: 48 MB total (16 MB battery-buffered SRAM, 32 MB DRAM); built-in SD card slotABB

• I/O Capacity: Up to 1500 I/Os; supports up to 10 direct I/O modulesABB

• Power Supply: 24 V DC; typical 24 W, max 30 W; power dissipation 18 WABB

• Operating Temperature: -20°C to +70°C; storage -40°C to +85°CABB

• Dimensions: 285 × 152 × 95 mm; weight approx. 1.1 kg

• Redundancy: Supports CPU, communication, and power redundancy; 500 ms switchover time

Interface and Communication Configuration

• Ethernet: 4 × RJ45 (10/100 Mbps); 3 for Modbus TCP/IEC 60870-5-104, 1 for redundancy linkABB Group

• Serial: 3 × RS-232C (2 general, 1 service); 2 × RS-422/485 isolated portsABB

• Expansion: 4 slots for communication interface modules (CI series)ABB Group

• Protocols: Modbus TCP/RTU, IEC 60870-5-104, ControlNet, OPC UA

Core Functions

• Executes high-speed real-time control logic (PID, sequential, and logic control) with millisecond-level cycle time

• Performs centralized data collection, historical logging, and parameter management

• Supports system-wide alarm handling and equipment self-diagnosis for fault localization

• Provides redundant operation with bumpless switchover to eliminate single-point failures

• Enables program editing, downloading, and debugging via Freelance Control Builder software

Application Scenarios

• Power industry: turbine control, generator protection, and auxiliary system monitoring

• Process industries: chemical, oil & gas, water treatment, pharmaceutical, and papermaking

• Manufacturing: production line automation, machine control, and batch processes

• Infrastructure: smart grid monitoring, district heating, and building management systems

Operation and Maintenance Instructions

• Install on standard DIN rail with adequate ventilation; avoid direct heat and vibration

• Use shielded cables for all communication wiring; separate power and signal cables to reduce interference

• Configure and download programs via Freelance Control Builder (v2019 or higher) before commissioningABB

• Regularly check connection integrity, LED status, and battery health (TA 951F lithium battery)ABB

• The module has no user-serviceable parts; replace the entire unit upon permanent hardware failure

• Store in dry, clean environment; operating humidity 10%–95% non-condensingABB