ABB DI810 (3BSE008508R1) – 16‑Channel 24 VDC Digital Input Module for S800 I/O

The ABB DI810 is a dependable 16‑channel 24 VDC digital input module designed for the S800 I/O platform. From my experience, it’s a practical choice when you want stable, noise‑resistant input scanning for switches, proximity sensors, and machine interlocks—without burdening the controller with debounce logic. You might notice that it slots into existing S800 racks smoothly and supports hot‑swap replacement, which keeps downtime low during maintenance windows.

Order Placement Process and Guarantees

• Warranty: 365 days
• Lead time: 1 week for in‑stock; no more than one month at the latest
• Payment: 50% advance payment; full payment before delivery
• Express options: FedEx, UPS, DHL
• Packaging & ESD: Industrial-grade packing with anti‑static protection, typically double‑boxed

Key Features

• 16 digital inputs, 24 VDC: Suits most field sensors and dry contacts used in factory automation.
• Per‑channel status LEDs: Quick diagnostics at the panel—technicians typically locate wiring faults faster.
• Designed for S800 I/O: Plugs into standard S800 termination units (e.g., TU810/TU812/TU814) on DIN rail.
• Noise‑tolerant input circuitry: Stable operation in electrically noisy cabinets with proper grounding.
• Hot‑swap capable: Module replacement under power in most cases, reducing line stoppage.
• Integration with ABB AC 800M: Seamless via S800 ModuleBus; no extra gateways needed on standard setups.
• Field‑side 24 V flexibility: Works well with common PNP proximity sensors and clean contact inputs.

Technical Specifications

Application Fields

The DI810 fits cleanly into distributed I/O architectures for:

• Factory automation lines (machine interlock status, light curtains, door switches)
• Process industries (valve limit switches, pump run feedback, level switch monitoring)
• Power & utilities (breaker auxiliary contacts, panel indication inputs)
• Material handling (conveyor sensors, proximity detectors, jam detection)
• Water & wastewater (float switches, pressure switch alarms)

A maintenance lead from an OEM customer mentioned that swapping a DI810 on a running line took under five minutes with proper lock‑out and hot‑swap procedure—the channel LEDs made verification immediate.

Advantages & Value

• Reliability: Stable 24 VDC input detection with good noise immunity, especially in cabinets with VFDs nearby.
• Compatibility: Works across the S800 ecosystem and integrates naturally with AC 800M controllers.
• Lifecycle & availability: This module is widely used in installed bases, which typically means easier spares planning.
• Cost control: Hot‑swap capability and front LEDs reduce troubleshooting time and maintenance labor costs.
• Scalability: Add more DI810s on the same rack as I/O counts grow—no rewiring of backplane required.

Installation & Maintenance

• Cabinet & DIN rail: Install on ABB S800 termination units (TU810/TU812/TU814) mounted on grounded DIN rail.
• Wiring: Use shielded cable for long runs; route I/O away from high‑power cables. Provide a clean 24 VDC field supply with proper fusing.
• Ventilation: Maintain clearance for airflow; cabinet temperature should remain within the stated operating range.
• Grounding: Bond shields and cabinet ground per site standards to minimize EMI; consistent 0 V reference helps avoid false triggering.
• Hot‑swap: In most cases the module can be replaced under power via the S800 design—follow plant lock‑out/tag‑out and ABB procedures.
• Routine checks: Periodically verify terminal tightness, clean dust from modules, and review diagnostic logs in the DCS.
• Firmware/config: Module behavior is largely hardware‑driven; keep controller firmware current and document channel mapping for audits.

Supporting Components (Typical Pairings)

• Termination Units: ABB TU810 / TU812 / TU814 (DIN‑rail base units for wiring and ModuleBus)
• ModuleBus Terminator: ABB TB810 (end‑of‑bus termination where required)
• I/O Power Distribution: 24 VDC field supply with individual channel or group fusing as per site standards

Quality & Certifications

• Certifications: CE, cULus, RoHS (typical for ABB S800 I/O modules)
• Manufacturer’s Policy: ABB product quality with documented testing and traceability
• Warranty: 365 days from delivery (seller warranty)

If you need a matching set of termination units or a quick check of channel allocation for your panel layout, share the rack drawing and I’ll map the DI810s against your field list—saves time and, in many cases, avoids rework on site.