ABB SD853 (3BSE088188R1) – Specialty Digital Module for S800 I/O applications

The ABB SD853, part number 3BSE088188R1, sits in ABB’s S800 I/O family and is typically used where you need specialty digital functions on a compact, DIN‑rail mounted I/O segment. From my experience, SD‑series modules are picked when a standard DI/DO won’t cut it—think high‑speed counting, sequence-of-events capture, or other time‑critical digital tasks tied into an AC 800M or Advant-based system via S800 I/O. You might notice that it drops straight onto a TU8xx terminal base, so you keep wiring simple and the footprint tight.

Company’s Order Placement Process and Guarantees

• Warranty: 365 days
• Lead time: 1 week when in stock; no more than 1 month at the latest
• Payment: 50% advance payment; full payment before delivery
• Express options: FedEx, UPS, DHL

Key Features

• S800 I/O form factor – Plugs onto TU8xx terminal bases, which keeps installation consistent across your cabinets.
• Specialty digital functionality – Commonly used for fast digital inputs, counting, or SOE-type applications where timing matters.
• ModuleBus powered – Draws power via the S800 backplane; no need for separate local power in most cases.
• Controller-agnostic via S800 – Interfaces upstream through standard S800 I/O infrastructure to AC 800M/Advant systems.
• Compact and serviceable – Front access for module replacement and labeling; minimizes downtime if a swap is needed.

Technical Specifications

Related or Supporting Products

• ABB TU810 / TU812 – Terminal bases for S800 I/O; choose based on wiring style and channel density. These are typically the pieces you mount on DIN rail first.
• ABB SD833 – Another SD‑series specialty digital module, often used for counter/fast DI tasks; a common alternative depending on required input type.
• ABB SD822 – Specialty digital module variant frequently seen in pulse counting applications; selection depends on the sensor interface.
• ABB DI810 / DI811 – Standard 24 VDC digital input modules when high‑speed or SOE features aren’t required.
• ABB CI854A / CI851 – Communication interface modules used to connect S800 I/O segments to the controller (e.g., via PROFIBUS DP or ModuleBus optics), depending on the architecture.

Installation & Maintenance

• Cabinet & mounting – Install TU8xx terminal bases on a grounded DIN rail within an enclosure that meets at least IP20. Keep adequate clearance above/below modules for airflow.
• Power & grounding – Use a clean 24 VDC supply for the S800 backplane. From my experience, a solid protective earth and shield termination point reduces nuisance counts on fast inputs.
• Wiring – Route field digital lines separately from high‑power cables. You might notice the SD‑series performs best when shielded pairs are grounded at one end only.
• Environmental – Operate within typical S800 I/O limits (temperature/humidity). Avoid condensation; add cabinet ventilation if ambient exceeds mid‑40s °C.
• Routine checks – Verify terminal tightness quarterly, clean dust with dry air, and review diagnostics in the DCS for channel state or event buffer anomalies.
• Firmware/config – If the application uses time‑stamped events, sync controller time across the network and keep controller and CI modules on supported firmware.
• Spares strategy – Keep at least one spare SD‑series module and a TU8xx base gasket; swap time is usually minutes if labeling is in place.

Quality & Certifications

• Certifications – Typically CE‑marked; RoHS compliant. UL/cUL recognition applies in many cases for S800 I/O modules (varies by exact variant and region).
• Manufacturing – Produced under ISO 9001 quality systems by ABB.
• Warranty – 365‑day warranty from us; ABB standard product policies apply where relevant.