Process Automation Digital Input Solution – ABB DI651 3BHT300026R1 | S800 I/O Series
Where This Product Is Used
The ABB DI651 (Part No. 3BHT300026R1) is a Digital Input Module designed for the ABB AC 800M controller platform and S800 I/O system. It is widely deployed across demanding industrial environments where reliable discrete signal acquisition is critical:
- Oil & Gas Processing Plants – Monitoring valve position feedback, pump run/stop status, and emergency shutdown (ESD) signals in DCS architectures.
- Power Generation & Utilities – Capturing breaker status, relay contact inputs, and protection relay trip signals in substation automation systems.
- Pulp & Paper Mills – Reading machine-state signals from conveyors, presses, and dryers integrated into ABB Extended Automation System 800xA.
- Chemical & Petrochemical Plants – Interfacing with field-level switches (pressure, level, flow) in SIL-rated safety instrumented systems.
- Water & Wastewater Treatment – Collecting digital status from pumps, blowers, and gate actuators in SCADA-connected process islands.
- Automotive & Discrete Manufacturing – Integrating with PLCs for machine interlocking, cycle-complete signals, and safety gate monitoring.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 3BHT300026R1 |
| Module Type | Digital Input (DI) |
| Series | S800 I/O |
| Compatible Controller | ABB AC 800M |
| Number of Channels | 16 DI channels |
| Input Signal Type | 24 V DC digital signals |
| Isolation | Galvanic isolation between field and system bus |
| Communication Bus | S800 I/O ModuleBus |
| Mounting | DIN rail via S800 I/O baseplate |
| Operating Temperature | 0 °C to +55 °C |
| Storage Temperature | -40 °C to +70 °C |
| Humidity | 5–95% RH (non-condensing) |
| Protection Class | IP20 |
| Manufacturer | ABB Ltd. |
| Country of Origin | Sweden / Germany |
Why Engineers Specify This Model
- Seamless AC 800M Integration – Native S800 I/O ModuleBus communication eliminates gateway overhead and simplifies engineering in ABB Control Builder M.
- Galvanic Isolation – Protects the controller backplane from field-side transients and ground loops common in heavy industrial environments.
- Hot-Swap Capability – Modules can be replaced under power without shutting down the controller, minimizing process downtime.
- Compact Form Factor – High channel density in a slim DIN-rail profile reduces panel space and wiring complexity.
- Proven Reliability – Deployed in thousands of ABB 800xA and Freelance DCS installations globally with a long service lifecycle.
- Diagnostic Transparency – Per-channel diagnostics are surfaced directly in System 800xA for rapid fault isolation.
Complete System Bill of Materials
To build a fully operational S800 I/O node with the DI651, the following components are typically required:
- ABB DI651 (3BHT300026R1) – This digital input module
- ABB TB820V2 / TB840A – ModuleBus Modem / S800 I/O cluster coupler
- ABB S800 I/O Baseplate – Module mounting rail (e.g., TP830, TP854)
- ABB AC 800M Controller – PM860, PM861, PM864, or PM866 CPU module
- ABB CI854B / CI858 – PROFIBUS DP or ModuleBus interface for remote I/O
- 24 V DC Power Supply – Redundant PSU recommended for critical applications
- Field Terminal Blocks – For 24 V DC discrete field wiring
Compliance & Industry Standards
- CE Marked – Compliant with EU Machinery Directive and EMC Directive
- UL Listed – Recognized for use in North American industrial installations
- IEC 61131-2 – Programmable controller input/output requirements
- IEC 61000-4 Series – EMC immunity (ESD, EFT, surge, conducted RF)
- ATEX / IECEx – Suitable for use with certified barriers in Zone 2 / Div. 2 applications (verify with project SIL assessment)
- RoHS Compliant – Restriction of Hazardous Substances
Quality Assurance & Sourcing
At Konmask.com, every ABB module undergoes a structured verification process before shipment:
- Visual inspection for physical damage, label integrity, and firmware revision markings
- Functional power-on test where applicable
- Original ABB packaging or anti-static ESD-safe packaging for transit
- Traceability documentation available upon request (batch records, test reports)
- Sourced from authorized ABB distribution channels and verified surplus stock
We specialize in hard-to-find ABB S800 I/O and AC 800M components, supporting both new project builds and legacy system maintenance.
How to Source This Part
- Add to Cart – Click “Add to Cart” and proceed to checkout for immediate online purchase.
- Request a Quote – Contact us at [email protected] for volume pricing, lead time confirmation, or project BOM review.
- WhatsApp / Phone – Reach our technical sales team at +0086 19859288691 for urgent requirements.
- Datasheet & Documentation – Request the ABB DI651 product manual or 3BHT300026R1 datasheet via email.
Typical lead time: In stock – ships within 1–3 business days. Express international shipping available.
Application-Specific FAQ
Q: Is the DI651 compatible with ABB System 800xA?
A: Yes. The DI651 is a native S800 I/O module fully supported in ABB System 800xA and AC 800M Control Builder M engineering environments.
Q: Can the DI651 be used in a SIL 2 safety application?
A: The standard DI651 is not SIL-certified. For safety-rated applications, ABB offers dedicated S800 Safety I/O modules (e.g., DI810 SIL). Consult your functional safety engineer.
Q: What is the difference between DI651 and DI810?
A: The DI651 is a standard 16-channel 24 V DC digital input module for the S800 I/O system. The DI810 is a safety-rated variant designed for SIL 1/2 applications. Both mount on the same S800 baseplates.
Q: Do you supply the matching baseplate and coupler?
A: Yes. We stock a range of S800 I/O accessories including baseplates (TP830, TP854) and ModuleBus couplers (TB820V2, TB840A). Contact us with your full BOM for a consolidated quote.
Q: Can I replace a DI651 without shutting down the AC 800M controller?
A: Yes. The S800 I/O system supports hot-swap module replacement. The controller continues to run while the module is exchanged, subject to your system’s redundancy configuration.
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Contact: [email protected] | +0086 19859288691
