Technical Specifications

Main Features and Advantages

DP-V1 at 12 Mbit/s without eating a CI854A budget: The ABB 3BSE018137R1​ gives the AC800M a full DP-V1 pipe—cyclic data + acyclic diagnostics/parameter read-write—at the full 12 Mbit/s that Profibus DP allows, which means a segment of 32 ACS880 drives each sending 8-word PD + 4-word PCD can still cycle in <10 ms if the GSD mapping is tight. For EPC specs that just need “AC800M → drive row” or “AC800M ← third-party DCS as DP slave” and don’t need the CI854A’s deeper diagnostic buffer or the multi-master finesse, the CI858-1​ is the right-cost FRU. The -1 spin keeps the same DB9 electrical front-end and the same ModuleBus handshake as the base CI858, so the hardware config treats them as the same GSD family with a firmware-rev delta.

1.5 kV isolation between DP segment and rack backplane: The Profibus DP PHY on the ABB 3BSE018137R1​ is galvanically isolated from the PM8xx backplane’s 24 V DC / ModuleBus, rated ~1.5 kV AC. That matters when the DP segment runs through a VFD-heavy MCC (drive row on one drop, rack 15 m away in the control room) and the VFD du/dt couples onto the DP shield drain—without the isolation the ModuleBus on the PM866 could see CRC storms; with the CI858-1​ isolation, the DP side can take the common-mode without bleeding into the rack.

DB9 + term DIP, no external media converter: The CI858-1​ fronts a standard Profibus DB9 (A/B plus shield cage) and carries the segment-termination DIP on-board (or on the rack’s DP terminal block depending on spin—check the PM8xx hardware manual for whether term is on the CI858-1 front or on the TB850/TB851 DP terminal accessory). Either way, no external repeater/terminator box is needed for a single-drop segment under 100 m—the ABB 3BSE018137R1​ plus the PM8xx rack’s DP terminal block covers it. For a 32-drive row at 12 Mbit the segment should be RS-485 with proper cabling and one repeater at mid-point, but the CI858-1​ itself doesn’t object.

ModuleBus auto-enumeration: Once the ABB 3BSE018137R1​ is seated in the PM8xx electrical slot and the 24 V DC backplane is up, the PM866/PM860 scans ModuleBus, sees the ‘s FRU-ID EEPROM, assigns it a ModuleBus address, and the hardware config in Control Builder M (or 800xA Hardware Editor) just needs the GSD import + station-number DIP match. No jumper dance, no firmware download to the itself—the ABB 3BSE018137R1​ is a “slot-and-go” FRU as long as the firmware spin supportt revision (older PM8xx firmware may need a refresh to seer FRU-ID; that’s the one pre-check).

Wide-temp and industrial EMC: The ​ is rated -40 °C to +70 °C and IEC 61131-2 / IEC 61000-4 EMC L3, so the same ABB 3BSE018137R1​ that lives in a climate-controlled control room also works in an offshore skid MCC or a desert-plant DCS cabinet where daytime ambient hits +65 °C. The CE/UL/RoHS stack also clears most international EPC checklists without an exemption request.

FRU logistics alongside the CI854A decision tree: The ABB 3BSE018137R1​ is a Customer Replaceable Unit—swap is power-down the PM8xx rack (or at least the electrical-slot 24 V if your rack has per-slot power gating—most don’t, so full rack 24 V off is safer), release the slot screw, extract, seat the replacement, restore 24 V, PM8xx re-enumerates. For plant stores carrying spares, the decision tree is: “Do we need CI854A depth (multi-master, richer diag, larger DP config)s enough?”—the answer decides whether the shelf stocks ABB 3BSE018137R1​ or CI854A or both. A mixed fleet (some racks talk 4 DP segments, some talk 1) will stock both: CI854A on the heavy racks, ​ on the “one DP drop to the drive row” racks.