Product Core Brief
- Model: BC810K02 (3BSE031155R1)
- Brand: ABB
- Series: AC800M / 800xA CEX-Bus Infrastructure
- Core Function: Segments and interconnects the CEX bus for AC800M controllers, enabling redundant communication paths and online CPU baseplate replacement.
- Product Type: CEX-Bus Interconnection Unit Kit
- Key Specs: 24V DC external supply (19.2–30V) | Supports PM861A/PM862/PM864A/PM865/PM866/PM867 CPUs | Includes TP857 baseplates + TB850 terminators + TK851 cable
- Condition: New Original (New Surplus) / Factory Sealed
Product Introduction
Redundant AC800M systems live or die by CEX-bus integrity. The is the hardware that splits a single CEX bus into isolated segments, so a fault on one segment doesn’t take down the entire controller communication backbone. It ships as a kit — two BC810 interconnection units, two TP857 baseplates, a TK851 interconnect cable, and two TB850 terminators — ready to drop into a redundant CPU rack.
Why it matters: in a dual-CPU configuration, this unit allows online replacement of the CPU baseplate without interrupting CEX traffic. That means you can swap a faulty baseplate during a running process instead of scheduling a full plant shutdown. One bad CEX segment stays isolated. The rest keeps talking. For facilities running PM864A, PM865, or PM866 controllers, keeping a spare kit on the shelf is cheaper than one unplanned outage.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | BC810K02 / 3BSE031155R1 |
| Product Type | CEX-Bus Interconnection Unit Kit |
| Compatible CPUs | PM857, PM861A, PM862, PM863, PM864A, PM865, PM866, PM866A, PM867, PM891 |
| Supply Voltage | 19.2–30V DC (nominal 24V DC) |
| Power Consumption | ~1.2W typical, 50mA typical |
| Bus Type | CEX-Bus (AC800M internal high-speed bus) |
| Operating Temperature | -40°C to +80°C |
| Protection Class | IP20 (panel mount) |
| Dimensions | 59 × 185 × 127.5 mm (per unit) |
| Weight | ~1.5 kg (full kit) |
| Kit Contents | 2× BC810 units, 2× TP857 baseplates, 1× TK851 cable (1.0 m), 2× TB850 terminators |
Key Selling Points & Differentiators
- True kit, not a loose unit. Ships with both BC810 interconnects, TP857 baseplates, TK851 cable, and TB850 terminators — no scavenging for missing pieces.
- Enables online CPU baseplate replacement. In a redundant pair, swap the baseplate without stopping CEX traffic. That’s the single biggest maintenance advantage this part offers.
- CEX bus segmentation. Isolates faults to one segment. A shorted cable on segment A won’t kill segment B.
- Broad CPU compatibility. Works with PM861A through PM867 and PM891 — covers most AC800M installations still in the field.
- Not recommended for AC800F systems (PM802F/PM803F) or non-ABB controllers. This is AC800M-specific CEX-bus hardware.
- 12-month warranty on all units, with pre-shipment visual and power-up verification.
Quality Transparency SOP
- Label & revision audit. Verify 3BSE031155R1 marking, manufacturing date, and ABB holographic label. Cross-check against known counterfeit markers.
- Visual PCB inspection. Check for corrosion, burnt components, or rework traces under magnification. CEX connectors get inspected for bent pins.
- Power-up test. Apply 24V DC to the TP857 baseplate. Confirm LED status indicators illuminate correctly and the unit draws current within spec (~50mA).
- Continuity & termination check. Verify TK851 cable continuity pin-to-pin. Confirm TB850 terminator resistance values with a Fluke multimeter.
- ESD sealing. Each unit bagged individually in anti-static packaging, boxed with foam inserts and a signed test report.
Technical Risk Avoidance
- ❗ Replacing a BC810 unit stops traffic on its CEX segment. Unlike CPU baseplate swaps, swapping the BC810 itself interrupts all communication on that segment. Plan accordingly — this is not a “hot-swap everything” part.
- ❗ TB850 terminators must be installed at both ends of the CEX bus. Missing or loose terminators cause reflection errors and intermittent communication faults that look like CPU failures.
- ❗ Verify CPU compatibility before ordering. works with PM861A/PM862/PM864A/PM865/PM866/PM867/PM891. It does not work with AC800F (PM802F/PM803F) or AC800K controllers.
- ❗ TK851 cable length is fixed at 1.0 m in the K02 kit. If your rack spacing differs, confirm mechanical fit before installation. Don’t substitute with unshielded cable.
Buyer’s FAQ
Q: Is this a single unit or a complete kit? A: Complete kit. You get two BC810 interconnection units, two TP857 baseplates, one TK851 cable (1.0 m), and two TB850 terminators. Some sellers list single BC810 units separately — those are not the K02 kit.
Q: Will this work with my PM866A controller? A: Yes. The BC810K02 is compatible with PM866A, PM867, and PM891 in addition to the PM861A/PM862/PM864A/PM865/PM866 range.
Q: Are these genuine ABB parts or refurbished? A: We supply new original surplus — factory sealed, never installed. Each unit passes incoming inspection for label authenticity and physical condition.
Q: Can I use this in a non-redundant (single CPU) system? A: Technically yes, but you won’t get the online baseplate replacement benefit. In a single-CPU setup, the BC810 still provides CEX bus segmentation and fault isolation.
Q: What’s the warranty and lead time? A: 12-month warranty from ship date. In-stock kits ship within 1–2 business days. If you need a specific manufacturing date range, let us know before ordering.
