70EA05A-E HESG447419R1 ABB Bailey

The ABB Bailey Communication Interface (including modules from the INFI 90, Network 90, and Symphony DCS families such as the INICI03, INNIS01, and ICT01 series) serves as a critical bridge between process control networks, multi-function controllers, and high-level human-machine interfaces (HMI) or computer systems. Built for industrial-grade data conversion, message routing, and continuous real-time telemetry, this interface translates internal backplane communication protocols into standardized supervisory network streams. It ensures high throughput, deterministic response times, and uninterrupted system connectivity across large distributed control system (DCS) architectures.

Key Product Parameters

Supply Voltage: Positively regulated 5 VDC power rail supplied via the system backplane (tolerance range within plus or minus 5%).

Power Draw: Typical power consumption of 2.1 Watts with an operating current draw of approximately 415 milliamperes.

Processing Architecture: Integrated 16-bit CMOS high-speed microprocessor with dedicated onboard firmware execution.

Memory Configuration: 256 KB of battery-backed static RAM for configuration parameters, dynamic buffers, and communication tables.

Primary Network Interfaces: Dual RS-232-C asynchronous serial channels or high-speed Cnet / INFI-NET module bus connection terminals.

Baud Rates Supported: Configurable speed settings including 300, 1200, 2400, 4800, 9600, and 19200 baud.

Operating Temperature: 0 to 70 degrees Celsius (32 to 158 degrees Fahrenheit) ambient.

Storage Temperature: Minus 40 to plus 85 degrees Celsius (minus 40 to plus 185 degrees Fahrenheit).

Relative Humidity: 5% to 95% relative humidity, non-condensing.

Physical Dimensions: Approximate length of 31.4 cm, width of 3.7 cm, and height of 17.8 cm.

Weight: Approximately 0.26 kg to 0.70 kg depending on the specific model configuration.

Product Advantages

Deterministic Performance: Employs a dedicated embedded processor to isolate communication management from control loops, ensuring zero signal delay or system bottlenecks during high-density I/O traffic.

Backward Compatibility: Fully compatible with legacy Bailey Network 90, INFI 90 OPEN, and modern ABB Symphony Enterprise systems without requiring complex network restructuring.

Data Integrity: Non-volatile battery-backed memory guards configuration tables against primary power supply interruptions, eliminating runtime parameter loss.

High Scalability: Supports multiple scan rates and dynamic polling lists to prioritize mission-critical alarms while reducing unnecessary message overhead across the network.

Industrial Durability: Engineered with heavy-duty noise immunity, wide temperature operating bands, and robust backplane connectors suitable for continuous operation in harsh manufacturing environments.

Operational Considerations

Electrostatic Discharge Protection: Always wear a grounded ESD wrist strap when handling or replacing modules to prevent catastrophic damage to delicate CMOS semiconductor circuits.

Backplane Alignment: Ensure power is completely isolated or that approved hot-swap protocols are carefully followed prior to inserting the board into the module mounting chassis to avoid pin bending or electrical shorts.

Serial Cable Length Limits: Maintain standard RS-232 distance restrictions (maximum 15 meters or 50 feet without signal boosters) to prevent data frame corruption in high EMI environments.

Battery Maintenance: Periodically monitor and replace the onboard battery cell to ensure continuous RAM backup during scheduled plant shutdowns.

Ventilation Space: Maintain proper airflow clearance within the enclosure rack to prevent localized heat buildup above the 70 degrees Celsius operational limit.

Product Applications

Power Generation Plants: Used for routing boiler, turbine, and auxiliary subsystem telemetry to central control rooms for continuous monitoring.

Chemical and Petrochemical Refineries: Enables fast data transmission between distributed batch process controllers, safety shutdown systems, and operator consoles.

Pulp and Paper Manufacturing: Manages continuous process feedback, web speed tracking, and environmental monitoring systems.

Water and Wastewater Facilities: Interconnects remote pumping stations, treatment units, and supervisory telemetry servers across wide geographical areas.

Metal Processing and Mining: Facilitates heavy industrial automation, furnace monitoring, and material handling systems where high fault tolerance is mandatory.