ABB S800 I/O DI810/DO810 Digital I/O Module Set (3BSE008508R1 / 3BSE008510R1)

Overview: Core Digital I/O for the S800 Distributed Process I/O System

The ABB DI810 and DO810 are 16-channel digital input and digital output modules within the ABB S800 I/O system, a comprehensive, distributed, and modular process I/O platform that communicates with parent controllers over industry-standard fieldbus technology. Because S800 I/O is designed to work with a wide range of process controllers from ABB and other vendors, these digital I/O modules serve as fundamental building blocks across AC 800M, AC 800F, and third-party DCS and PLC architectures wherever standard 24V DC digital field signals must be brought into or driven out from the control system.

As an authorized supplier of ABB S800 I/O modules, Seven Star LLC sources and supplies the DI810/DO810 digital I/O module set to refineries, gas processing plants, and manufacturing facilities across Oman and the wider GCC. Because digital I/O modules are among the most frequently replaced components in a distributed I/O system, Seven Star LLC helps maintenance teams keep genuine replacement modules in stock for both scheduled and unplanned servicing.

Working Principle: Isolated Channel Groups with Diagnostic Feedback

The DI810 Digital Input Module provides 16 channels for 24V DC digital inputs, divided into two isolated groups of eight channels, each with its own voltage supervision input; each input channel provides current limiting, EMC protection, an input state LED indicator, and optical isolation from the module bus. This group-isolated architecture means a fault or voltage anomaly on one group of eight channels does not propagate to the other, containing the impact of field wiring faults to a smaller portion of the module.

The DO810 Digital Output Module mirrors this architecture on the output side, providing 16 channels of 24V DC, 0.5A digital outputs divided into two isolated groups of eight channels, each with protection against short circuits to ground, over-voltage, and over-temperature, plus EMC protection, output state LED indication, and optical isolation from the module bus. A configurable Output on System Problem (OSP) predetermined value can be set for each output, so that if communication with the parent controller is lost, outputs move to a safe, defined state rather than an unpredictable one.

Engineering Design of the DI810/DO810 Modules

Both modules mount via S800 terminal units (TU series) onto a DIN rail base, and are hot-swappable, allowing live module replacement without powering down the surrounding I/O station or interrupting unrelated channels. Compact dimensions (approximately 119 x 45 x 102 mm) and light weight (approximately 0.2 kg) keep the S800 I/O footprint efficient within the control cabinet, while CE, UL, CSA, RoHS, and IEC 61131-2 compliance support deployment across a wide range of regulatory environments.

Field wiring connects via 2-wire terminal blocks on the associated termination unit, and channel status and error indicators on the module front give maintenance technicians immediate visual diagnostics for each of the 16 channels without needing to connect an engineering tool, streamlining routine troubleshooting during plant walk-downs.

Electrical Characteristics and Signal Levels

ABB’s hardware selector data for the ABB DI810 defines the input thresholds as -30 to +5 V for logic 0 and 15 to 30 V for logic 1, with each sinking channel drawing approximately 6 mA at 24 V DC. Input filtering is digitally selectable at 2, 4, 8 or 16 ms, which lets engineers trade response speed against contact-bounce and induced-noise rejection on long field runs. The module draws about 50 mA from the +5 V ModuleBus supply with typical dissipation of 1.8 W.

On the output side the ABB DO810 provides short-circuit-proof, current-limited channels protected against shorts to ground and to 30 V, draws about 80 mA from the +5 V ModuleBus with typical dissipation of 2.1 W, and indicates module error, module warning and per-channel status on front-panel LEDs. Both modules are groupwise isolated from ground with a rated insulation voltage of 50 V and a dielectric test voltage of 500 V a.c. Neither module supports redundancy, so availability requirements above single-module level are addressed at the loop or architecture level rather than by module pairing.

Key Features

The ABB DI810/DO810 Digital I/O Module Set delivers dependable, diagnosable 24V DC digital signal handling. Key characteristics include:

• 16 channels per module, divided into two isolated groups of 8 for fault containment.
• 24V DC current-sink input (DI810) and current-sourcing output (DO810), 0.5A per channel.
• Hot-swappable design for live module replacement without station shutdown.
• Configurable Output on System Problem (OSP) safe-state value for DO810 outputs.
• Per-channel LED status indication and error diagnostics.
• Optical isolation from the module bus on every channel.
• Compatible with a wide range of parent controllers including AC 800M and AC 800F.

Industrial Applications

The DI810/DO810 module set is deployed across refinery process units, gas processing plants, and general manufacturing automation wherever standard 24V DC digital signals – pump status, valve limit switches, motor starter feedback, alarm relays, and similar field devices – must be integrated into a distributed process control system. Their compatibility across multiple ABB and third-party controller platforms makes them a flexible standard I/O choice for both new installations and expansions of existing S800 I/O stations.

Seven Star LLC supports refinery instrumentation teams, gas processing operators, and manufacturing plant maintenance departments across Oman, Muscat, Sohar, and the broader GCC region with sourcing of ABB S800 I/O digital modules, helping projects maintain reliable field signal integration.

Terminal Units, Mounting and Environmental Limits

Terminal unit selection determines the field wiring arrangement and must be confirmed at order stage. The DI810 is listed against TU810V1, TU812V1, TU814V1, TU818, TU830V1, TU833, TU838 and TU850 terminal units, while the DO810 is listed against TU810V1, TU812V1, TU814V1, TU830V1 and TU833. Ambient operating range for both modules is 0 to +55 °C, with the formal approvals issued over +5 to +55 °C, and storage from -40 to +70 °C – figures worth checking against cabinet internal temperature rather than room temperature in Omani plant rooms, where solar gain and dense cabinet packing can lift internal air well above ambient. RoHS conformity covers the EU, UAE and China schemes. Seven Star LLC can confirm the correct terminal unit part number against an existing S800 I/O station layout before a replacement DI810 or DO810 module is despatched.

Technical Specifications

The table below summarizes the core specifications of the ABB DI810/DO810 Digital I/O Module Set as supplied by Seven Star LLC.

Request a Quote for ABB S800 I/O DI810/DO810 Digital I/O Module Set (3BSE008508R1 / 3BSE008510R1)

Seven Star LLC supplies the ABB DI810/DO810 digital I/O module set with full manufacturer documentation and regional technical support. Contact our automation division for a formal B2B quotation, to confirm compatibility with your existing S800 I/O station, or to obtain the complete technical datasheet. Seven Star LLC ensures every unit shipped across Oman and the GCC is genuine ABB hardware, correctly specified, and backed by local support.

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