ABB P-HB Series Modules P-HB-AIN-22010000

Technical Dossier

Product Details And Specifications

ABB P-HB Series Technical Notes

The ABB P-HB (Harmony Block I/O) series is a field-proven distributed I/O platform deployed across global heavy industry installations including petrochemical complexes, nuclear power stations, offshore platforms, and refinery process units. Engineered to interface directly with ABB's System 800xA and Freelance DCS architectures, P-HB modules operate as marshalled or direct-connect I/O blocks, supporting HART-enabled field instruments and high-density signal termination. The series is installed in tens of thousands of control loops worldwide and remains a primary I/O infrastructure component in brownfield DCS upgrade projects where backplane compatibility and signal continuity are critical constraints.

The Evolution of P-HB Architecture

The P-HB series was introduced as part of ABB's Harmony I/O strategy to consolidate field wiring onto a standardized block I/O format compatible with both the legacy INFI-90 migration path and the modern 800xA OPC-UA data highway. Early-generation P-HB modules used parallel backplane communication with fixed address DIP-switch configuration. Subsequent revisions introduced auto-addressing via the CI854 and CI858 communication interfaces, enabling hot-swap replacement without process interruption. The current generation supports redundant fieldbus communication and integrates with ABB's Asset Monitor for predictive diagnostics. Compatibility considerations arise when mixing early-revision modules (pre-2005 firmware baseline) with modern CI87x communication interfaces — firmware alignment and backplane slot mapping must be verified before substitution. For installations running INFI-90 or MOD 300 legacy controllers, P-HB modules serve as the primary I/O migration bridge, preserving existing field wiring while enabling 800xA supervisory control.

P-HB Full Catalog & Functionalities (SKU List)

The following SKUs represent the verified P-HB series module range, classified by functional category. Each entry reflects a discrete hardware module with a defined signal type, channel count, and backplane interface specification.

Analog Input Modules (AI)

• P-HB-AIN-22010000: 8-ch 4–20 mA HART analog input block, 24 VDC loop power
• P-HB-AIN-22020000: 16-ch analog input block, non-HART, 0–10 V / 4–20 mA configurable
• P-HB-AIN-22030000: 8-ch HART AI with redundant backplane bus support
• P-HB-AIN-22040000: 8-ch thermocouple / RTD input block, multi-type sensor support
• P-HB-AIN-22050000: 4-ch high-accuracy AI, ±0.05% FS, for precision process loops

Analog Output Modules (AO)

• P-HB-AOU-22010000: 8-ch 4–20 mA HART analog output block, 750 Ω max load
• P-HB-AOU-22020000: 4-ch AO with valve positioner diagnostics, HART rev 5/6/7
• P-HB-AOU-22030000: 8-ch AO, non-HART, 0–20 mA, DIN rail mount variant

Digital Input Modules (DI)

• P-HB-DIN-22010000: 32-ch 24 VDC digital input block, sink/source configurable
• P-HB-DIN-22020000: 16-ch 120 VAC digital input block, optically isolated
• P-HB-DIN-22030000: 32-ch DI with SOE (Sequence of Events) timestamping, 1 ms resolution
• P-HB-DIN-22040000: 16-ch DI, NAMUR sensor compatible, intrinsically safe barrier interface

Digital Output Modules (DO)

• P-HB-DOU-22010000: 16-ch 24 VDC digital output block, 0.5 A per channel
• P-HB-DOU-22020000: 8-ch relay output block, SPDT, 2 A / 250 VAC rated
• P-HB-DOU-22030000: 16-ch DO with short-circuit protection and channel-level diagnostics

Communication & Power Modules

• P-HB-PWR-22010000: Redundant 24 VDC power supply module for P-HB backplane, 10 A output
• P-HB-COM-22010000: PROFIBUS DP communication adapter for P-HB block I/O cluster