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Description
Technical Specifications
| Product Model | PPC907BE (HIEE4100000R0001) |
|---|---|
| Manufacturer | ABB |
| Product Type | PPC900 Series Process Control Processor Module for Symphony Plus / Harmony Rack |
| Typical Base Units Supported | 07KT97, 07KT94 (with Harmony I/O bus backplane) |
| CPU Architecture | 32-bit RISC microprocessor |
| User Memory (RAM) | Typically 16 MB DRAM (battery-backed for retentive data) |
| Program/Flash Memory | Typically 4 MB Flash (firmware + application download storage) |
| Battery Backup | External lithium battery (e.g., ABB 07BT62 or equivalent) for RAM retention & RTC |
| Supply Voltage | 24 V DC (via base unit / rack power supply, typical range 19.2–30 V DC) |
| Power Consumption | Approx. 8–12 W (dependent on base and connected I/O bus loading) |
| Harmony Bus Interface | Dual-port memory to Harmony I/O bus (H-Bus / INFI 90 compatible) |
| Communication Ports | Via CEX-bus or add-on comm modules (Ethernet TCP/IP, Profibus DP, Modbus, etc.) |
| Cycle Time | Configurable; typical continuous task scan < 50 ms for average-size control strategy |
| Mounting | Plugs into 07KT97 / 07KT94 base unit in Harmony/Evolution rack (horizontal or vertical per rack type) |
| Operating Temperature | 0 °C to +55 °C (32 °F to 131 °F) |
| Dimensions (Module Only) | Approx. 70 mm × 265 mm × 35 mm (W × H × D) |
| Certifications | CE, UL, cUL, GOST-R, Marine approvals per ABB declaration for Symphony Plus components |
Main Features and Advantages
The ABB PPC907BE delivers the computational backbone for Symphony Plus control nodes, combining proven Harmony-bus compatibility with modern processor performance and diagnostic richness.Deterministic process control execution: The 32-bit RISC CPU on the ABB PPC907BE executes user-defined function block diagrams (FBD), structured text (ST), ladder diagram (LD), and sequential function chart (SFC) logic with configurable task priorities and scan periods. Continuous control loops (PID, ratio, cascade, feedforward) and sequential interlock logic share the same execution environment, allowing a single ABB PPC907BE to handle both regulatory control and equipment sequencing—from turbine governor setpoint management to motor start/stop permissive chains—within one downloadable application.Battery-backed retentive memory and online change capability: User RAM on the ABB PPC907BE is backed by an external lithium cell (typically mounted on the base unit or in a dedicated battery holder such as 07BT62) to preserve setpoints, totals, and state variables across power cycles. The module supports online download of minor program changes (addition/modification of logic without stopping the processor, where permitted by task class), a critical feature for process plants where shutting down the controller for a small logic tweak is impractical. Complete downloads require a stop/restart sequence but preserve retentive data if the battery is healthy.Harmony/INFI 90 Evolution bus integration: The ABB PPC907BE interfaces natively to the Harmony I/O bus, meaning it can directly control legacy INFI 90 analog and digital I/O modules (IMFECI, IMFECT, etc.) as well as newer Symphony Plus Harmony I/O (e.g., 07DI92, 07AI91, 07AO91) without protocol gateways. This makes the ABB PPC907BE the cornerstone of brownfield modernization: old I/O racks stay in place, the processor is swapped to a PPC900 series module, and the plant gains modern engineering tools and cyber-security-hardened firmware while avoiding costly I/O rewiring.Comprehensive self-diagnostics and front-panel indication: The module continuously monitors its own CPU, memory, watchdog timer, battery status, and Harmony bus communication. Front-panel LEDs labeled RUN, ERR, I/O BUS, and COM provide at-a-glance status; a red ERR LED combined with specific blink codes assists field technicians in identifying issues such as checksum errors, missing battery, or I/O time-out without a laptop. In the event of a fatal fault, the ABB PPC907BE can be configured to hold last-state outputs, force safe-state outputs (via failsafe parameters in the base unit), or revert to a predefined fallback strategy—essential for safety and asset protection in continuous processes.Engineering tool integration and cyber-security features: When programmed via ABB Control Builder M Professional (CBM), the ABB PPC907BE benefits from tag-based symbolic addressing, cross-reference, online monitoring with forced-value highlighting, and multi-language IEC 61131-3compliance. Firmware revisions include role-based access control, encrypted communication options (when used with appropriate network modules), and audit trail capabilities aligned with NERC-CIP and ISA-99 considerations for critical infrastructure protection.Migration and lifecycle advantage: For plants running legacy Advant OCS (AC450/AC460) or early Symphony/INFI 90 nodes (PMxxx processors), the ABB PPC907BE offers a documented migration path—ABB provides conversion utilities and reference documentation to re-host applications on the PPC900 platform, extending the life of the installed I/O base while modernizing the control engine. This positions the ABB PPC907BE as both a new-project CPU and a strategic obsolescence-mitigation component.
Application Field
The ABB PPC907BE is deployed as the control processor in ABB Symphony Plus DCS nodes across a broad spectrum of process industries. In fossil-fuel and combined-cycle power plants, the ABB PPC907BE runs boiler master, turbine governor interface logic, burner management system (BMS) interlocks, and balance-of-plant (BOP) control loops—often in redundant processor pairs for turbine-protection-grade availability. Its ability to interface directly with Harmony I/O means existing analog input modules reading furnace pressure, steam temperature, and drum level, as well as digital outputs driving fuel trip solenoids, remain in service while the control intelligence is upgraded to modern PPC900 hardware.In pulp & paper mills, the ABB PPC907BE controls digester batch sequences, stock preparation refiners, bleach plant chemical dosing loops, and paper machine drive section setpoints communicated via the Harmony bus to local I/O racks distributed along the machine aisle. The module’s online-change capability is particularly valued during grade-change trials where control parameter adjustments and minor logic additions are frequently made without process interruption.Oil & gas upstream and midstream facilities use the ABB PPC907BE in compressor station control, produced water injection skids, and gas metering stations where the processor’s rugged design, wide operating temperature range, and compatibility with both legacy INFI 90 I/O and newer Ethernet-based plant information networks suit remote, unmanned installations. In pharmaceuticals and specialty chemicals, the ABB PPC907BE executes batch phase logic conforming to ISA-88 models, with recipe management handled at the operations level and downloaded setpoints enforced locally to ensure continued safe operation even during brief network interruptions.For system integrators and plant owners undertaking DCS life-extension programs, the ABB PPC907BE is specified to replace end-of-life PM/AC-series processors in existing Harmony racks—preserving the field wiring, I/O modules, and plant network address scheme while bringing the control node up to a currently-supported hardware/firmware baseline with access to ABB’s modern engineering and cyber-security patch stream. This targeted modernization approach using the ABB PPC907BE typically delivers 60–80% cost savings versus full DCS rip-and-replace while eliminating single-source obsolescence risk.
Related Products
- HIEE4100000R0001 — The complete ABB ordering code / spare part number for the PPC907BE processor module; often listed interchangeably with PPC907BE in bills of materials and procurement documents.
- 07KT97 — Standard base unit / carrier for the PPC907BE in most Harmony rack installations; provides 24 V DC power connection, Harmony I/O bus interface, battery connector, and screw/spring terminal access for local I/O if configured.
- 07KT94 — Alternative base unit for the PPC907BE with extended I/O bus reach or specific legacy compatibility; check rack type before substitution.
- 07BT62 — Lithium battery pack for backing up user RAM and real-time clock on systems using the PPC907BE mounted on 07KT97/07KT94 bases; typically ordered as a consumable spare.
- 07CR41 / 07CR42 — Harmony / Symphony Plus control rack (4-slot or 8-slot) into which the 07KT97 + PPC907BE assembly is installed; provides backplane power distribution and I/O module slots.
- 07DI92 / 07AI91 / 07AO91 — Symphony Plus Harmony digital and analog I/O modules commonly controlled by the PPC907BE via the Harmony bus in both new and migrated installations.
- CI854A / CI867 — Communication interface modules (Profibus DP-V1 Master or Modbus TCP/RTU) that can be added to the CEX-bus of a rack hosting the PPC907BE to provide fieldbus connectivity to third-party devices.
- PPC902AE101 / PPC905AE101 — Other PPC900 series processors with different memory or feature sets; earlier/later variants in the same family—useful for cross-reference when verifying upgrade compatibility with the PPC907BE.
