It is an 8-channel analog output module of the S800 I/O series for ABB Advant 800xA system. It converts digital control signals into standard industrial analog signals (0/4-20mA or 0-10V) to drive on-site equipment such as actuators and valves.
- Model Segment Definition (ABB S800 I/O Naming Rule)
| Model Segment | Meaning | Detailed Description |
| 3BSE | Product series prefix | General prefix for ABB industrial automation products, representing control system I/O modules |
| 38415 | Product part number | Numeric code for unique module identification |
| R1 | Revision number | Revision 1, standing for the first official version of the module |
| AO810V2 | Commercial model | AO = Analog Output, 8 = 8 channels, 10 = Standard type, V2 = 2nd generation upgraded version |
- Core Technical Specifications (Official Data)
| Parameter Category | Technical Index | Remarks |
| Basic Characteristics | ||
| Number of Channels | 8 channels (galvanically isolated) | Each channel can be individually configured for output type |
| Output Type | Current / Voltage selectable | 0-20mA, 4-20mA, 0-5V, 1-5V, 0-10V |
| Resolution | 14-bit (including sign bit) | Accuracy ±0.1% Full Scale |
| Conversion Rate | 25ms per channel | Full channel update cycle: 200ms |
| Electrical Parameters | ||
| Current Output Range | 0-25mA (Maximum drive capability) | Standard load 500Ω (4-20mA), High load 850Ω (0-20mA) |
| Voltage Output Range | 0-10V | Minimum load 1kΩ |
| Isolation Level | 250V AC between channels, 500V AC between channel and backplane | Compliant with IEC 61010-1 safety standard |
| Power Supply | 24V DC (±10%) | Power consumption <2W |
| Environmental Parameters | ||
| Operating Temperature | 0°C to +55°C | Storage temperature: -20°C to +70°C |
| Humidity | 5% to 95% (Non-condensing) | IP20 protection level |
| Vibration / Shock | 5g / 11ms (Half-sine wave) | Meet anti-interference requirements for industrial environments |
| Certifications & Compliance | CE, UL, CSA | Compliant with EN 61131-2, IEC 61010-1 |
- Accessory List & Installation Requirements
3.1 Mandatory Accessories (Must Be Used Together)
| Part Number | Name | Function |
| TU810/TU812/ TU814/TU830/ TU833 | Terminal Unit | Provide field wiring terminals for signal connection and isolation |
| TB810 | Terminal Board | Optional, for high-density wiring scenarios |
| SD811 | Shield Connector | For analog signal shield grounding and interference reduction |
3.2 Installation Specifications
DIN Rail Mounting: 35mm standard rail complying with DIN EN 50022
Backplane Communication: Communicate with controller via S800 I/O bus backplane
Installation Clearance: Keep at least 10mm gap between modules for heat dissipation
Wiring Requirement: Use shielded twisted pair for analog signals, routed separately from power cables (spacing ≥15cm)
- Same Series Models & Cross-Brand Replacement List
4.1 ABB S800 I/O Analog Output Module Series
| Model | Channels | Resolution | Special Features | Application Scenarios |
| AO810V2 (3BSE038415R1) | 8 | 14-bit | Standard type, general output | General industrial control, cost-effective |
| AO815V2 | 8 | 16-bit | High precision with diagnostic function | Process control requiring high measurement accuracy |
| AO820 | 4 | 14-bit | Redundant output, fail-safe | Critical equipment control with redundant backup required |
| AO890 | 8 | 14-bit | HART protocol support | Smart instrument communication and remote diagnosis |
4.2 Cross-Brand Replacement Solution (Parameter Matching)
| Brand | Model | Channels | Resolution | Output Type | Compatibility Note |
| Schneider | BMXDAI1605 | 8 | 14-bit | 0/4-20mA, 0-10V | Adaptable to Modicon M340/M580 system |
| Siemens | 6ES7 332-5HF00-0AB0 | 8 | 14-bit | 0/4-20mA, 0-10V | Compatible with S7-300 system, backplane replacement required |
| Rockwell | 1756-OF8 | 8 | 16-bit | 0/4-20mA, 0-10V | For ControlLogix system, different communication protocol |
| Domestic | HollySys FM148A | 8 | 14-bit | 0/4-20mA, 0-10V | Compatible with LK series DCS, high cost performance |
- Selection Guidelines & Replacement Tips
5.1 Selection Decision Tree (Quick Demand Matching)
- Channel Quantity: 8 channels satisfy most small and medium control loops; expand by parallel installation or select 16-channel models for more points.
- Accuracy Requirement:
General control: AO810V2 (0.1% accuracy) is sufficient
Precision control: Upgrade to AO815V2 (16-bit, 0.05% accuracy)
- Load Capacity:
Standard load (≤500Ω): Directly use AO810V2
High load (500-850Ω): Adopt 0-20mA mode instead of 4-20mA
- Special Functions:
HART communication: Choose AO890
Redundant output: Choose AO820
Fail-safe: Choose AO825 (SIL certified)
5.2 Replacement Mnemonic Rule (3 Key Matching Elements)
Same channel quantity, no accuracy downgrade, meet load requirement, equivalent isolation performance
5.3 Replacement Precautions
- Protocol Compatibility: ABB S800 I/O adopts Profibus DP or ABB dedicated bus; cross-brand replacement requires system compatibility evaluation.
- Terminal Compatibility: Terminal units of different brands are not interchangeable and shall be replaced together.
- Software Configuration: Reconfigure module parameters after replacement to ensure consistent output range and fail-safe logic.
- Redundant System: Conduct compatibility testing first for critical applications to avoid system failure.
- Main Application Scenarios & Typical Cases
- Process Industry: Valve positioner control in chemical, petrochemical and natural gas processes
- Power Industry: Generator excitation control and transformer tap changer regulation
- Manufacturing: Production line speed control, pressure / flow regulation
- Water Treatment: Pump inverter control and chemical dosing flow regulation
Typical configuration: AO810V2 module + TU812 terminal unit + SD811 shield connector, used to control 4-20mA pneumatic regulating valves for precise flow control.
Full List of ABB Analog Output Modules (Structured Quick Reference)
- S800 I/O Series (800xA/DCS System, Industrial Standard Application)
| Module Model | Full Part Number | Channels | Core Features | Output Type | Resolution | Typical Application |
| AO801 | 3BSE020514R1 | 8 | Basic type, channel isolation | 0/4-20mA, 0-10V | 12-bit | General control, low-cost scenarios |
| AO810 | 3BSE008522R1 | 8 | Standard configurable type | 0/4-20mA, 0-5V, 1-5V, 0-10V | 14-bit | General industrial control, medium precision |
| AO810V2 | 3BSE038415R1/R2 | 8 | V2 upgraded version, higher stability | 0/4-20mA, 0-5V, 1-5V, 0-10V | 14-bit | Replacement for AO810, mainstream application |
| AO810V2-eA | 3BSE038415R2 | 8 | Optimized for Freelance system | 0/4-20mA, 0-10V | 14-bit | Freelance DCS system |
| AO815 | 3BSE008523R1 | 8 | High precision with diagnosis | 0/4-20mA, 0-10V | 16-bit | Process control & precision regulation |
| AO820 | 3BSE008546R1 | 4 | Redundant output, fail-safe | 0/4-20mA | 14-bit | Critical equipment control with redundancy |
| AO845 | 3BSE008547R1 | 8 | Redundant output with OSP preset value | 0/4-20mA | 14-bit | Safety-related systems, communication fault protection |
| AO845A | 3BSE018107R1 | 8 | AO845 upgrade, HART pass-through | 0/4-20mA | 14-bit | Smart instrument communication & remote diagnosis |
| AO890 | 3BSE008548R1 | 8 | Intrinsically safe, HART | 0/4-20mA (Ex ia) | 14-bit | Hazardous Area Zone 1/2, explosion-proof required |
| AO895 | 3BSE018108R1 | 8 | High precision intrinsically safe | 0/4-20mA (Ex ia) | 16-bit | Precision control in hazardous areas |
- S900 I/O Series (ATEX Explosion-Proof for Hazardous Areas)
| Module Model | Full Part Number | Channels | Explosion-Proof Grade | Core Features | Output Type | Applicable Area |
| AO920S | 3KDE175531L9200 | 4 | Ex ia IIC T4 | Isolated, intrinsically safe | 0/4-20mA | Zone 1/2, no HART required |
| AO920N | 3KDE175533L9200 | 4 | Ex ia IIC T4 | Non-isolated, intrinsically safe | 0/4-20mA | Zone 1/2, cost priority |
| AO920B | 3KDE175532L9200 | 4 | Ex ia IIC T4 | Enhanced isolated, intrinsically safe | 0/4-20mA | Zone 1/2, high anti-interference |
| AO930S | 3KDE175531L9300 | 4 | Ex ia IIC T4 | Isolated with HART | 0/4-20mA | Zone 1/2, smart instrument connection |
| AO930N | 3KDE175533L9300 | 4 | Ex ia IIC T4 | Non-isolated with HART | 0/4-20mA | Zone 1/2, HART + cost priority |
| AO930B | 3KDE175532L9300 | 4 | Ex ia IIC T4 | Enhanced isolated with HART | 0/4-20mA | Zone 1/2, HART + high anti-interference |
| DSAX452 | 3KDE175534L9452 | 8 | Ex ia IIC T4 | High-density, intrinsically safe | 0/4-20mA | Zone 1/2, multi-channel demand |
- AC500 PLC S500 Series (Modular PLC Application)
| Module Model | Full Part Number | Channels | Core Features | Output Type | Resolution | Compatible CPU |
| AO523 | 1SAP250200R0001 | 16 | High density, software configurable | 0/4-20mA, 0-10V, ±10V | 12-bit | PM5xx series, AC500-eCo |
| AO562 | 1SAP250201R0001 | 4 | High precision, fast response | 0/4-20mA, 0-10V, ±10V | 16-bit | PM5xx series, high-performance application |
| AX521 | 1SAP250100R0001 | 4AI/4AO | Mixed I/O, space-saving | 0/4-20mA, 0-10V | 12-bit | Compact system with limited I/O points |
| AX522 | 1SAP250101R0001 | 8AI/8AO | High-density mixed I/O | 0/4-20mA, 0-10V, Pt100 | 12-bit | Medium system with multi-function demand |
| 500MBA02 | 1MRB150003R0001 | 8 | Basic type, cost-effective | 0/4-20mA, 0-10V | 12-bit | AC500 basic series |
- Other Series (Special Application Scenarios)
4.1 Advant Master Series
| Module Model | Part Number | Channels | Features | Application |
| AO800 | 3BSE008521R1 | 8 | Basic analog output | Advant Master DCS system |
4.2 Safety-Related Modules (SIL Certified)
| Module Model | Part Number | Channels | SIL Level | Features | Application |
| AO825 | 3BSE018109R1 | 4 | SIL 2 | Fail-safe, redundant output | Safety Instrumented System (SIS) |
- Selection Mnemonic & Key Parameter Comparison
5.1 Selection Rule
System Matching → Channel Quantity → Accuracy → Explosion-Proof → Special Functions
System Matching: S800 for 800xA, S900 for explosion-proof, AC500 for PLC
Channel Quantity: 4/8/16 channels selected by control loop quantity
Accuracy: 12-bit (Basic), 14-bit (Standard), 16-bit (Precision)
Explosion-Proof: Non-explosion-proof (S800), Intrinsically safe (S900)
Special Functions: HART (AO845A/AO890/AO930), Redundant output (AO820/AO845), Fail-safe (AO825)
5.2 Key Parameter Comparison Table
| Series | Typical Accuracy | Max Load (4-20mA) | Isolation Level | Operating Temp | Redundancy Support |
| S800 | ±0.1% | 500Ω (Standard) / 850Ω (High) | 250V AC between channels | 0-55℃ | Partial models (AO820/AO845) |
| S900 | ±0.1% | 750Ω | Ex ia IIC | -20-60℃ | Optional |
| AC500 | ±0.2% | 600Ω | 500V AC between channels | 0-60℃ | No |
- Instructions & Notes
- Model Naming Rule:
AO = Analog Output
Digit = Channel quantity (e.g. 8 = 8 channels)
Suffix V2 = 2nd generation upgraded version
Suffix S/B/N (S900) = Isolated / Enhanced Isolated / Non-isolated
Suffix -eA = Optimized for Freelance system
- Accessory Matching:
S800 series: Match with TU810/TU812/TU814/TU830/TU833 terminal units
S900 series: Match with SA910S/SA920S terminal units
AC500 series: Direct DIN rail mounting with integrated terminals
- Replacement Principle:
Higher version can replace lower version within the same series (AO810V2 replaces AO810)
Cross-series replacement requires system and protocol compatibility check
Accuracy and channel quantity shall not be lower than original module
Selected Application Cases of ABB Analog Output Modules (Full Industry Coverage + Configuration & Value Dimension)
- Power & Energy Industry (Mainly S800 I/O, High Reliability & Redundancy Demand)
1.1 Thermal Power Plant Boiler Combustion Control System (AO810V2+AO845A)
End User: Large state-owned power plant (600MW unit)
Core Configuration:
Main Controller: AC800M redundant controller (PM865)
Analog Output: 8 pcs AO810V2 (feed water regulating valve, forced/draught fan inverter control) + 2 pcs AO845A (fuel valve redundant output)
Terminal Unit: 10 pcs TU812 + SD811 shield connector
Realized Functions:
Precisely control boiler feed water flow, air flow and fuel supply via 4-20mA signals to optimize combustion efficiency (excess air factor controlled at 1.15-1.2)
AO845A redundant output keeps fuel valve at safe opening during communication failure, compliant with IEC 61850
Real-time regulation of turbine inlet valve to match grid load demand
Customer Benefits:
Boiler efficiency increased by 2.3%, saving about 12,000 tons of standard coal annually
NOₓ emission reduced by 18%, meeting ultra-low emission standard
System availability up to 99.99%, reducing unplanned shutdowns
1.2 Wind Farm Pitch Control System (AO815+AO820)
End User: Multinational wind power operator (100MW wind farm)
Core Configuration:
Pitch Controller: AC800M + 3 pcs AO815 (high-precision pitch angle control) + 3 pcs AO820 (redundant safety chain output)
Signal Type: 0-10V (pitch motor servo control) + 4-20mA (safety brake control)
Realized Functions:
Dynamically adjust blade angle (0-90°) according to wind speed and grid frequency to maximize wind energy capture
16-bit high precision of AO815 ensures pitch angle control error <0.1% and improves power generation efficiency
AO820 redundant output triggers safety brake rapidly in emergency to guarantee equipment safety
Customer Benefits:
Annual power generation increased by 3.2%, revenue increased by about 2.1 million CNY
Blade fatigue damage reduced by 25%, service life extended
Compliant with GL 2010 wind power safety standard and TÜV certified
- Petrochemical Industry (S800/S900, Explosion-Proof & High Precision Demand)
2.1 Refinery Distillation Column Control System (AO810V2+AO890)
End User: Integrated refining & chemical enterprise (10 million tons/year refining capacity)
Core Configuration:
Distillation Unit: 800xA system + 6 pcs AO810V2 (reflux pump inverter, reboiler steam valve control) + 2 pcs AO890 (tower bottom temperature control for hazardous area)
Explosion-Proof Level: AO890 meets Ex ia IIC T4 for Zone 1 hazardous area
Realized Functions:
Precisely control reflux ratio (0.5-3.0) and tower bottom temperature ( ±0.2°C ) to maintain mass and energy balance
HART function of AO890 realizes remote diagnosis of smart valve positioner and early warning of sticking fault
MPC algorithm optimizes product purity through analog output modules
Customer Benefits:
Gasoline product purity increased by 0.5 percentage points, annual premium income about 8 million CNY
Steam consumption reduced by 12%, annual energy cost saving about 3.5 million CNY
Unplanned shutdown reduced by 4 times per year, avoiding loss of about 20 million CNY
2.2 Chemical Reactor Temperature & Pressure Control (AO815+AO845A)
End User: Fine chemical enterprise (pesticide intermediate production)
Core Configuration:
Reactor Control: AC800M + 4 pcs AO815 (heating/cooling system control) + 2 pcs AO845A (pressure regulating valve redundant output)
Output Type: 4-20mA (proportional valve control) + 0-10V (heating power control)
Realized Functions:
Temperature control accuracy up to ±0.1°C, pressure control accuracy ±0.02MPa, meeting fine chemical synthesis requirements
AO815 diagnostic function monitors valve status in real time and early warns leakage risk
Precisely control feeding rate and reaction time in batch production to improve product consistency
Customer Benefits:
Product yield increased from 92% to 99.5%, reducing waste disposal cost
Reaction cycle shortened by 15%, annual production capacity increased by 20%
Safety risk reduced and passed HAZOP analysis certification
- Manufacturing Industry (S800/AC500, Flexible Configuration & Fast Response)
3.1 Automotive Painting Workshop Precision Control (AO815)
End User: Joint venture automobile manufacturer (300,000 vehicles annual output)
Core Configuration:
Painting Line: 800xA system + 12 pcs AO815 (12 sets of painting valves and coating transfer pump control)
Signal Type: 4-20mA (coating flow control, accuracy 0.01L/min)
Realized Functions:
Dynamically adjust nozzle flow based on vehicle 3D model data to achieve uniform coating thickness (±5μm)
HART communication monitors valve status in real time and early warns blockage or wear
Synchronize with robot trajectory to ensure painting quality on complex curved surfaces
Customer Benefits:
Coating rework rate reduced by 8%, annual coating cost saving about 4.5 million CNY
Production tact improved by 10%, annual capacity increased by 30,000 vehicles
VOCs emission reduced by 12%, meeting environmental standards
3.2 PV Module Laminator Temperature Control (AO810V2)
End User: Leading PV enterprise (5GW module annual output)
Core Configuration:
Laminator: AC500 PLC + 4 pcs AO810V2 (8 heating zones, 2 channels per module in parallel)
Output Type: 0-10V (heating power control, 14-bit resolution)
Realized Functions:
PID algorithm precisely controls heating plate temperature with uniformity ±0.5°C to ensure full cross-linking of EVA film
Automatically compensate heat loss by monitoring temperature difference of each heating zone
Link with vacuum system to realize precise control of pressure-temperature-time
Customer Benefits:
Module yield increased from 92% to 98%, annual loss reduction about 60 million CNY
Energy consumption reduced by 18%, annual electricity saving about 2.8 million CNY
Equipment maintenance cycle extended by 50%, reducing downtime
- Water Treatment & Environmental Protection Industry (AC500/S800, Energy Saving & Stable Operation)
4.1 Municipal Wastewater Treatment Plant Aeration System (AO810V2+AC500)
End User: Municipal wastewater treatment plant (500,000 tons daily treatment capacity)
Core Configuration:
Aeration Tank Control: AC500 PM573 + 6 pcs AO810V2 (12 Roots blower inverter control)
Control Logic: PID regulation based on dissolved oxygen (DO) concentration (2-4mg/L)
Realized Functions:
Dynamically adjust blower speed according to inlet water quality and flow to precisely control aeration volume
Alternate operation of multiple blowers to balance equipment wear and extend service life
Link with online water quality analyzer to realize precise aeration and avoid over-oxygenation
Customer Benefits:
Blower energy consumption reduced by 25%, annual electricity saving about 1.8 million CNY
Sludge production reduced by 15%, lowering treatment cost
Effluent quality stably meets Class 1-A standard of GB 18918-2002
4.2 Waterworks Chemical Dosing System (AO523+AC500-eCo)
End User: County-level water supply company (100,000 tons daily water supply)
Core Configuration:
Dosing Room: AC500-eCo + 2 pcs AO523 (16 channels, PAC & PAM dosing pump control)
Output Type: 4-20mA (dosing pump frequency control, 0-50Hz)
Realized Functions:
Automatically calculate dosing amount based on raw water turbidity, pH and flow for precise dosing control
Link with sedimentation tank liquid level and effluent turbidity to realize closed-loop control
Historical data recording and trend analysis to optimize dosing strategy
Customer Benefits:
Chemical consumption reduced by 12%, annual cost saving about 350,000 CNY
Effluent turbidity stably below 0.5NTU, improving water supply quality
Manual operation reduced and labor intensity lowered
- Metallurgical Industry (S800, High Load & Anti-Interference)
5.1 Steel Hot Rolling Reheating Furnace Control (AO810+AI810)
End User: Large iron & steel group (hot rolled coil production line)
Core Configuration:
Reheating Furnace: AC800M redundant controller + 5 pcs AO810 (gas flow valve & air flow valve control) + 5 pcs AI810 (temperature acquisition)
Output Type: 4-20mA (proportional regulating valve control, load 800Ω)
Realized Functions:
Zoned furnace temperature control (1200-1250°C) with temperature deviation within ±5°C
Optimize air-fuel ratio (1.05-1.1) to improve combustion efficiency and reduce NOₓ emission
Link with rolling mill speed to realize precise billet temperature control
Customer Benefits:
Furnace thermal efficiency increased by 3%, annual gas cost saving about 5 million CNY
Steel billet oxidation loss reduced by 0.2%, annual output increase about 12,000 tons
Product thickness tolerance improved from ±0.15mm to ±0.08mm, upgrading product quality
- Application Selection Key Points (Selection & Value Dimension)
6.1 Module Selection Matching Table
| Industry | Core Demand | Recommended Module | Key Features |
| Power | Redundancy & High Reliability | AO845A/AO820 | Redundant output, fail-safe, IEC 61850 compliant |
| Chemical | Explosion-Proof & High Precision | AO890/AO815 | Intrinsically safe, 16-bit precision, HART communication |
| Manufacturing | Fast Response & Uniformity | AO815/AO810V2 | Fast response, 14/16-bit precision, channel isolation |
| Water Treatment | Energy Saving & Stability | AO810V2/AO523 | Multi-channel, low power consumption, PID optimization |
| Metallurgy | High Load & Anti-Interference | AO810 | 850 high load capacity, 500V isolation |
6.2 Core Value Formula
Application Value = Quality Improvement from Higher Precision + Cost Saving from Energy Reduction + Downtime Loss Reduction from Higher Reliability
6.3 Key Success Factors for Implementation
- System Matching: S800 for 800xA/DCS, AC500 for PLC, S900 for explosion-proof areas
- Complete Accessories: Terminal unit (TU810/812/830) + shield connector (SD811) are essential
- Parameter Optimization: Select current/voltage output according to load type and set proper fail-safe value
- Diagnosis Utilization: Enable HART function for predictive maintenance and lower operation cost
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