PRODUCT INFORMATION
Product Overview
The ABB AO845A 3BSE045584R1 is an S800 I/O analog output module for industrial control systems. This unit provides current output signals rated across 0 to 20 mA or 4 to 20 mA. Digital-to-analog conversion is performed with 12-bit resolution across active operating channels. The hardware architecture allows implementation in both single-channel and redundant system topologies.
Each module loop supports a maximum load resistance specification of 750 ohms. An integrated loop-supervised digital input function delivers automated circuit status monitoring. The unit connects to the field process using dedicated S800 module termination units. Compatible mounting bases include compact and extended termination unit models such as TU810 and TU843. Plant operators utilize this module for precise signal distribution within Advant and 800xA automation architectures.
TECHNICAL DATA
Technical Specifications
| Parameter | Specification |
|---|
| Part Number | 3BSE045584R1 |
|---|
| Model | AO845A |
|---|
| Product Type | Analog Output Module |
|---|
| Product Series | S800 I/O |
|---|
| Output Current Range | 0 to 20 mA / 4 to 20 mA |
|---|
| Resolution | 12 bit |
|---|
| Maximum Load Resistance (RLmax) | 750 ohm |
|---|
| Operating Topology | Single or redundant |
|---|
| Supervisory Function | Loop supervised DI function |
|---|
| Compatible Termination Units | TU810, TU812, TU814, TU830, TU833, TU842, TU843, TU852 |
|---|
TECHNICAL INFORMATION
Features
- Provides analog output current ranges of 0 to 20 mA and 4 to 20 mA.
- Features integrated 12-bit digital-to-analog conversion resolution.
- Supports both single and redundant operational module configurations.
- Handles field loop loads up to a maximum resistance of 750 ohms.
- Includes an integrated loop-supervised digital input diagnostic function.
- Integrates with multiple standard S800 module termination units.
TECHNICAL INFORMATION
Applications
- Advant OCS and 800xA control systems requiring redundant analog outputs.
- Process control loops requiring 0 to 20 mA or 4 to 20 mA signaling.
- Field current loop actuation with loop resistance up to 750 ohms.
- Supervised analog output loops requiring integrated circuit diagnostics.
TECHNICAL INFORMATION
Connections / Interfaces
- Module Termination Unit TU810 compact base connection.
- Module Termination Unit TU812 compact base connection.
- Module Termination Unit TU814 compact base connection.
- Module Termination Unit TU830 extended base connection.
- Module Termination Unit TU833 extended base connection.
- Module Termination Unit TU842 redundant base connection.
- Module Termination Unit TU843 redundant base connection.
- Module Termination Unit TU852 base connection.
TECHNICAL INFORMATION
Installation Guidelines
- Insert the module into a compatible S800 module termination unit.
- Ensure the module locks firmly into the termination base guides.
- Verify that connected loop resistance does not exceed 750 ohms.
- Follow specified wiring polarity on the selected module termination unit.
- Confirm redundancy wiring matches channel pairs when using redundant bases.
TECHNICAL INFORMATION
Configuration Guidelines
- Select between 0 to 20 mA and 4 to 20 mA signal ranges in software.
- Configure single or redundant operational modes in the control builder.
- Activate the loop-supervised digital input diagnostic function as required.
- Assign physical channel addresses matching the selected termination unit slot.
TECHNICAL INFORMATION
Compatibility
- ABB S800 I/O system infrastructure.
- ABB Advant 800xA automation platforms.
- Module Termination Units TU810, TU812, TU814, TU830, TU833, TU842, TU843, and TU852.
COMPATIBILITY
Compatibility & Replacement
COMPATIBLE MODELSABB S800 I/O system infrastructure. ABB Advant 800xA automation platforms. Module Termination Units TU810, TU812, TU814, TU830, TU833, TU842, TU843, and TU852.
Verify compatibility against the exact Part Number, revision and manufacturer documentation before ordering.
PART VERIFICATION
Before You Order
Industrial automation parts can share similar model names, suffixes and revisions. Confirm the complete manufacturer Part Number before purchase.
01Check Part NumberMatch the complete ordering code on the existing unit.
02Confirm RevisionCheck suffix, hardware or firmware when applicable.
03Send a Label PhotoWe can review a clear label photo when identification is uncertain.
ORDERING PROCESS
From RFQ to Dispatch
1Submit Part Number2Verify Product Identity3Confirm Stock & Condition4Issue Quotation5Dispatch & Tracking
PRODUCT FAQ
Frequently Asked Questions
What signal ranges does the ABB AO845A module deliver?
The AO845A delivers standard 0 to 20 mA and 4 to 20 mA analog output current ranges.
Does the AO845A 3BSE045584R1 support redundant operation?
Yes. The module supports both single and redundant operational configurations using compatible redundant termination bases.
What maximum load resistance can the AO845A drive?
The module drives field circuits with a maximum load resistance of 750 ohms.
What is the market reference price for the AO845A 3BSE045584R1?
Observed market reference pricing is approximately 763 USD. This figure is indicative market reference pricing only and is not a final quotation.
Which module termination units connect with the AO845A?
The AO845A connects with TU810, TU812, TU814, TU830, TU833, TU842, TU843, and TU852 termination units.
