Description
The ABB UAD155A0111 3BHE029110R0111 is a high-performance 16-channel analog input module engineered for ABB’s flagship System 800xA and AC 800M distributed control systems (DCS). As a critical component of the S800 I/O family, this module delivers precision measurement of voltage signals (±10V, ±5V, 0–10V, 0–5V) from sensors and transmitters across industrial processes. Its ruggedized design ensures reliable operation in harsh environments like oil refineries or power generation facilities, while seamless integration with ABB’s Automation Builder software streamlines engineering workflows.
Designed for mission-critical applications, the ABB UAD155A0111 3BHE029110R0111 provides galvanic isolation (1,500 V AC) between channels and backplane, eliminating ground loops and electrical noise interference. The module supports hot-swapping during operation, minimizing downtime during maintenance or replacements. With a 16-bit resolution and ±0.1% accuracy, it captures subtle process variations essential for quality control and safety systems. The ABB UAD155A0111 3BHE029110R0111 exemplifies ABB’s commitment to robustness, scalability, and long-term lifecycle support in industrial automation.

ABB UAD155A0111 3BHE029110R0111
Technical Specifications
| Parameter Name | Parameter Value |
| Product Model | ABB UAD155A0111 3BHE029110R0111 |
| Manufacturer | ABB |
| Product Type | Analog Input Module |
| Channels | 16 single-ended |
| Input Signal Range | ±10V, ±5V, 0–10V, 0–5V (software-configurable) |
| Resolution | 16-bit |
| Accuracy | ±0.1% of full scale (25°C) |
| Isolation | 1,500 V AC (channel-to-channel and system) |
| Sampling Rate | 100 Hz per channel |
| Operating Temperature | -25°C to +70°C |
| Power Consumption | 1.8 W (typical) |
| Dimensions | 120 x 128 x 116 mm (H x W x D) |
| Connection Interface | Front-mountable FTA/FTE terminal blocks |
| Compatibility | System 800xA, AC 800M controllers, S800 I/O base units |
Main Features and Advantages
Precision Measurement: The ABB UAD155A0111 3BHE029110R0111 leverages 16-bit ADC technology for industry-leading accuracy (±0.1%), enabling fine-grained monitoring of critical process variables like pressure, temperature, and flow rates. Each channel features independent signal conditioning and software-configurable filtering to eliminate aliasing.
Enhanced Reliability: With 1,500 V AC galvanic isolation per channel, the module prevents electrical noise propagation and ground loops in electrically noisy environments. Its conformal-coated PCB resists humidity, dust, and corrosive atmospheres, extending service life in offshore platforms or chemical plants.
Operational Efficiency: Hot-swappable architecture allows module replacement without system shutdown, while front-access wiring reduces maintenance time. Native integration with ABB’s Control Builder M enables automatic configuration upload and real-time diagnostics. The ABB UAD155A0111 3BHE029110R0111 also features per-channel LED status indicators for rapid fault localization.
Application Field
The ABB UAD155A0111 3BHE029110R0111 excels in heavy process industries requiring high-density analog signal acquisition. In oil and gas refineries, it monitors pipeline pressures, tank levels, and safety valve positions via 4–20mA transmitters. Power generation facilities deploy it for turbine vibration analysis and temperature profiling across boilers and heat exchangers.
For pharmaceutical manufacturing, the module’s ±0.1% accuracy ensures compliance with FDA batch process regulations during reactor vessel control. Water treatment plants utilize its 16-channel capacity to oversee pH, turbidity, and chlorine sensors across distributed pumping stations. The ABB UAD155A0111 3BHE029110R0111 also serves in pulp/paper mills for consistency measurement and steam flow control, where its -25°C cold-start capability guarantees operation in unheated substations.

ABB UAD155A0111 3BHE029110R0111
Related Products
UAD155B0111: Next-gen variant with extended temperature range (-40°C to +85°C)
UDC221A0111: Digital input companion module for mixed I/O racks
CI854A: Communication interface for S800 I/O to AC 800M controllers
TB801: Terminal base unit for UAD155A mounting
FTA12: Field termination assembly for simplified wiring
SD821: Surge protector for analog signal protection
UAC318AE01: Analog output module for closed-loop control systems
PM861AK01: Processor module for AC 800M controller integration
Installation and Maintenance
Pre-installation preparation: Verify compatibility with S800 I/O base units (e.g., TB801, TB802) and ensure firmware matches System 800xA/AC 800M controller revisions. Discharge electrostatic energy via grounded wrist strap before handling the ABB UAD155A0111 3BHE029110R0111. Confirm voltage jumpers align with sensor signal ranges.
Maintenance recommendations: Monitor module health via Automation Builder’s diagnostic logs and front-panel LEDs (green=OK, red=fault, yellow=communication error). Clean air vents biannually using low-pressure nitrogen. Replace every 8–10 years or after surge events. Always use ABB-approved FTA12 terminal blocks during rewiring to maintain isolation integrity.






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