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ABB - Process Automation 3BSE045584R1 - AO845A Analog Output S/R HART 8 ch
ABB - Process Automation

3BSE045584R1


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Overview

The ABB AO845A (SKU 3BSE045584R1) is an 8-channel analog output module from ABB Process Automation. It converts digital control signals into 4-20 mA analog outputs for actuating field devices like control valves and transmitters in process automation systems. The module supports HART communication for remote configuration, monitoring, and diagnostics of connected instruments. Key specs include 12-bit resolution, a maximum load resistance of 750 ohms, and rated isolation of 50 V. It operates in single or redundant configurations and includes loop supervised DI functionality. Advanced on-board diagnostics are built-in. Requires a compatible Module Termination Unit (TU810, TU812, TU814, TU830, TU833, TU842, TU843, or TU852).
  • 8-channel analog output module (4-20 mA) with HART communication
  • 12-bit resolution with 0.1% accuracy
  • Maximum load resistance: 750 ohms
  • Rated isolation: 50 V
  • Supports single or redundant operation with loop supervised DI function

Specifications

CE mark
Yes
Corrosion protection
ISA-S71.04: G3
Depth
102 mm (4.01"), 111 mm (4.37") including connector
Electrical safety
EN 61010-1, UL 61010-1, EN 61010-2-201, UL 61010-2-201
EMC
EN 61000-6-4 and EN 61000-6-2
Equipment class
Class I according to IEC 61140; (earth protected)
HART
Yes
Hazardous Location
C1 Div2 cULus, C1 Zone2 cULus, ATEX Zone 2
Height
119 mm (4.7")
High integrity
No
Intrinsic safety
No
Marine certification
BV, DNV, LR
Max ambient temperature
55C (131F), for vertical mounting in compact MTU 40C (104F)
Mechanical operating conditions
IEC/EN 61131-2
Mechanics
S800
Number of channels
8
Overvoltage categories
IEC/EN 60664-1, EN 50178
Pollution degree
Degree 2, IEC 60664-1
Power dissipation
Typ. 3.5 W
Protection class
IP20 according to IEC 60529
Rated insulation voltage
50 V
Redundancy
Yes
Relative humidity
5 to 95%, non-condensing
Resolution
12 bit
RoHS compliance
EU RoHS, UAE RoHS, CN RoHS
Signal specification
4..20 mA
SOE
No
Temperature, Operating
0 to +55C (+32 to +131F), approvals are issued for +5 to +55C
Temperature, Storage
-40 to +70C (-40 to +158F)
Type
Analog Output
WEEE compliance
DIRECTIVE/2012/19/EU
Weight
0.21 kg (0.46 lbs.)
Width
45 mm (1.77")
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Frequently Asked Questions

What is the output signal type and resolution of the AO845A?

The AO845A provides 4...20 mA analog outputs with a 12-bit resolution.

What is the maximum load resistance for the AO845A module?

The maximum load resistance (RLmax) for the AO845A module is 750 ohms.

Does the AO845A module support redundant configurations?

Yes, the AO845A module supports both single and redundant configurations.

What is the rated isolation voltage for the AO845A module?

The AO845A module has a rated isolation voltage of 50 V.

What Module Termination Units are compatible with the AO845A?

The AO845A module is compatible with Module Termination Units TU810, TU812, TU814, TU830, TU833, TU842, TU843, and TU852.

Does the AO845A module have diagnostic capabilities?

Yes, the AO845A module features advanced on-board diagnostics and a loop supervised DI function.

Frequently Asked Questions about ABB - Process Automation

What certifications and standards do ABB - Process Automation products comply with?

ABB - Process Automation products comply with an extensive range of international, national, and marine certifications, including IEC, EN, UL, CSA, CE, and marine classification society standards. Key certifications include IEC 60947 series standards for low-voltage switchgear, UL and CSA approvals for North American markets, CE marking for European compliance, and marine approvals from societies like Bureau Veritas, DNV, and Lloyd's Register of Shipping.

What industries and applications are ABB - Process Automation products used for?

ABB - Process Automation products are engineered for critical applications across multiple heavy-duty and process industries, including Chemical, Energy, Oil and Gas, Mining, Metals, Pulp and Paper, Marine and Offshore, Food and Beverage, and Water/Wastewater. Their solutions cover a wide range of applications such as pump and compressor systems, conveyors, cranes, hoists, fans, and complex industrial automation requirements, with specialized drive systems designed for high-reliability environments and sustainable industrial operations.

What technical support does ABB - Process Automation offer?

ABB - Process Automation offers comprehensive technical support through a full range of lifecycle services, including 24/7 support, software maintenance, technical assistance, repairs, spare parts logistics, training, and customized service agreements. Their technical support covers system diagnostics, cyber security, performance checks, and provides ongoing optimization to maximize plant availability, reliability, and operational excellence.

What are the main product lines offered by ABB - Process Automation?

ABB - Process Automation offers the comprehensive Compact Product Suite, which includes process controllers, field interfaces, HMIs, and control systems designed for industrial automation. Key product lines include the AC 800M Controller, S800 I/O systems, HR Series Controllers, SD/SDe Controllers, and ABB Ability™ Symphony® Plus platform. These products provide seamless integration, scalability, and high performance across process industries, supporting everything from small to large multi-system configurations.

What are the key features of ABB - Process Automation products?

ABB - Process Automation products feature a SIMPLE, SCALABLE, SEAMLESS, and SECURE total plant automation solution. The Symphony Plus system offers comprehensive integration across plant operations, supporting everything from small to large multi-system configurations with seamless device and system connectivity. Key capabilities include advanced cybersecurity, flexible control platforms, and the ability to integrate new technologies and functionalities incrementally while protecting existing control system investments.

What communication protocols do ABB - Process Automation products support?

ABB - Process Automation products support a comprehensive range of industrial communication protocols, including PROFIBUS DP V1, PROFINET with dual port, EtherNet/IP with dual port, CANopen, and Modbus RTU. Additional supported protocols include IEC 61850, OPC UA, and MasterBus 300, providing flexible connectivity for diverse industrial automation requirements.

What environmental ratings do ABB - Process Automation products have?

ABB - Process Automation products feature robust environmental ratings across multiple standards. Typical ratings include IP54 to IP66 protection levels, with options for dust-tight and water-resistant enclosures. Products are certified for various environmental conditions, including CSA and CE standards, with specific ratings for industrial and outdoor applications ranging from NEMA Type 1 to Type 4X enclosures.

What accessories are available for ABB - Process Automation products?

ABB - Process Automation offers a comprehensive range of accessories for motor protection and control products. Key accessories include expansion modules like the DX111-FBP.0 (digital inputs), VI150-FBP.0 (voltage module), and AI111.0 (analog/temperature module). Additional accessories span auxiliary contact blocks, electronic timers, interlocks, interface relays, terminal blocks, connection accessories, and mounting pieces for contactors and motor starters.

How are ABB - Process Automation products typically installed?

ABB - Process Automation products are installed through a comprehensive, professional process that includes precise equipment verification, systematic assembly, secure electrical connections, and thorough pre-commissioning and commissioning tests. Installation services cover critical steps such as foundation frame verification, equipment assembly, bushing and busbar installation, control cable connections, earthing system connection, and comprehensive functional testing to ensure optimal performance and reliability.

What is ABB - Process Automation's warranty policy?

ABB - Process Automation offers standard and extended warranty options for its industrial automation products. For specific product lines like S800 I/O, S900 I/O, Fieldbus, and AC 800M, customers can purchase extended warranty coverage ranging from 12 to 48 additional months. The extended warranty pricing is calculated as a percentage (3-12%) of the affected hardware articles in the order, with terms governed by ABB AB in Sweden's Process Control Products supply conditions.