Product Overview

The ABB 2UBA002322R0010​ is an interface module positioned within ABB’s AC800M / 800xA DCS and S800 remote I/O ecosystem, most commonly encountered as a compact bus-bridge or communication-interface PCBA that links an AC800M controller node, an S800 I/O rack, or a drive/DCS-adjacent cabinet to the wider system bus or fieldbus layer. While ABB’s “2UBA” prefix covers several interface/spare variants (sibling codes such as 2UBA002323R0010, 2UBA002324R0010 appear in the same spare-channel catalogs), the 2UBA002322R0010​ is consistently referenced as a 24 V DC, DIN- or rack-mountable interface board whose role is to carry bus signaling, status reporting, and in some builds fieldbus pass-through between the local node and the plant-level network—whether that is ABB 800xA, a third-party DCS (Siemens PCS7, Emerson DeltaV, Honeywell Experion), or a drive-network master.Physically the ABB 2UBA002322R0010​ follows ABB’s compact-interface form factor: a multi-layer PCB with gold-finished contact points, LED status indicators (Power / Run / Bus / Fault, design-dependent), and a 24 V DC power footprint that pulls from the same auxiliary rail already present in an AC800M/S800 cabinet or an S800 remote-I/O cluster. The operating envelope is specified -20°C to +60°C, IP20 for cabinet interior, DIN-rail or rack-slot mounting per the host chassis. In the hierarchy of an 800xA node, the 2UBA002322R0010​ typically sits between the controller/processor (PM891/PM892 class) or the S800 I/O head and the outward-facing communication path—either as a bus-interface daughtercard on a carrier, or as a standalone DIN interface that aggregates a small cluster of local points before handing them to a CI-series communication module (CI871/CI854/CI867) for protocol conversion.For maintenance teams running ABB 800xA / AC800M plants—petrochemical, power-gen balance-of-plant, pulp & paper, pharmaceuticals, water/wastewater—the ABB 2UBA002322R0010​ is the “quiet spare” that revives a node where the bus interface has drifted, logged a comms fault, or failed post-surge. Like several other ABB PCBA spares in this catalog series (the P3LG drive DSP, the Relion 1MRK002322-ABR02, the SAY130 drive control, the PSTX motherboard, the MNS mLINK gateway), the 2UBA002322R0010​ is firmware-/revision-sensitive—the “R0010” suffix and the host-node BOM must align, which makes it a “matched spare” item rather than a generic bin-pick.

Technical Specifications

Main Features and Advantages

Bus-bridge role in the AC800M / 800xA / S800 stack:​ The ABB 2UBA002322R0010​ is not a controller and not a fieldbus master—it is the interface layer that lets a local node (AC800M CPU rack, S800 remote-I/O cluster, or drive-adjacent DCS point) land cleanly on the system bus and, via a CI-series sibling, onto the plant fieldbus. In an 800xA architecture, the PM891/PM892 CPU talks down to S800 I/O over optical ModuleBus; the 2UBA002322R0010​ can appear as the optical/electrical interface segment, the repeater/terminator anchor, or the local-bus aggregation point before the CI module pushes data up to 800xA. That layering is why the 2UBA002322R0010​ is seldom the “star” of a BOM but is always on the “spare needed” list—when the bus blinks, the whole I/O cluster goes “comms lost.”24 V DC auxiliary-rail compatibility:​ Like the P3LG, the SAY130, and the PSTX motherboard in this ABB spare series, the ABB 2UBA002322R0010​ pulls from the cabinet’s existing 24 V DC auxiliary distribution. No separate PSU, no fan, no thermal drama—just seat, screw, and (where firmware allows) auto-enumerate. In a dense AC800M/S800 cabinet that may hold a PM CPU, two S800 heads, and two CI communication modules, keeping the auxiliary load low matters.LED diagnostics at the faceplate:​ Power, Run, Bus, Fault LEDs on the 2UBA002322R0010​ let a technician at the cabinet front tell “24 V DC dead,” “bus optical break,” or “node mismatch” without a laptop. In a plant where the DCS cabinet is three buildings from the control room, that saves the walk back—same value prop we called out on the P4LG carrier, the 1MRK000173-BBR03 binary I/O, and the 1TGE102009R1001 MNS gateway.Compact footprint, DIN/rack flexible:​ The ABB 2UBA002322R0010​ is specified for DIN-rail mounting in S800-adjacent panels and for rack-slot / carrier-seating in AC800M chassis builds, depending on the host-node BOM. That dual-mount flexibility is why spare catalogs list the same R0010 label under both “AC800M spares” and “S800 I/O spares”—the PCB is the same, the mounting kit differentiates. For a plant engineer standardizing on ABB 800xA across a site, keeping two 2UBA002322R0010​ on the shelf (one DIN-kitted, one rack-kitted) covers both the control-building MCC-room S800 clusters and the main DCS rack.Firmware / revision matching (the 2UBA gotcha):​ As with every ABB PCBA in this series that carries Flash or bus-personality, the ABB 2UBA002322R0010​ is revision-sensitive. The “R0010” suffix and the host-node BOM (PM891 vs PM892, S800 head revision, CI-module generation) must align; a mismatched 2UBA002322R0010​ will throw “Bus Mismatch” or “Node Unknown” on the 800xA status tree and refuse to enumerate. That makes the 2UBA002322R0010​ another “matched spare per node-type” item—keep one per AC800M CPU revision and one per S800 head revision, not one generic “2UBA” bin.Sibling synergy with CI-series communication modules:​ The ABB 2UBA002322R0010​ rarely works alone in a full DCS node—it typically hands off to a CI871 (Profibus DP), CI854 (AF100/Profibus), or CI867 (Modbus TCP/RTU) that does the protocol-heavy lift. The 2UBA002322R0010​ keeps the local-bus side clean (optical isolation, EMI hardening) while the CI module handles the master-side GSD/EDD/device-parsing. For a plant upgrading from Advant (AC450/AC410, which we covered earlier as 7944831D) to 800xA/AC800M, the 2UBA002322R0010​ is one of the small interface pieces that makes the migration node-stable.