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Phone：+86 17062388866Description
The ABB PP846A 3BSE042238R2 is a high-density analog input module designed for ABB’s S800 I/O system, delivering precision signal acquisition in demanding process automation environments. Part of ABB’s Symphony® Plus and 800xA DCS platforms, this module conditions 16 analog inputs (4–20 mA, 0–10 VDC, or thermocouple/mV signals) with galvanic isolation and advanced diagnostics. Engineered for SIL 2 applications (IEC 61508), the PP846A features automatic drift compensation and HART 7 pass-through, enabling seamless integration with smart field devices. Its robust construction (-40°C to +70°C operating range) and EMI/RFI hardening ensure reliable performance in harsh settings like power plant turbine halls or offshore oil platforms. The module’s hot-swappable design minimizes downtime during maintenance, while DIN-rail mounting simplifies integration into control cabinets.
ABB PP846A 3BSE042238R2
Technical Specifications
| Parameter Name | Parameter Value |
| Product Model | PP846A 3BSE042238R2 |
| Manufacturer | ABB |
| Product Type | Analog Input Module |
| Channels | 16 (Single-ended) |
| Input Types | 4–20 mA, 0–10 VDC, ±50 mV, TC (J/K/T/E) |
| Resolution | 16-bit |
| Accuracy | ±0.05% FS @ 25°C |
| Update Rate | 50 ms per channel |
| HART Support | Yes (HART 7 pass-through) |
| Isolation | 500 VAC channel-to-channel/channel-to-backplane |
| Diagnostics | Open wire, over-range, short-circuit |
| Operating Temperature | -40°C to +70°C |
| Power Consumption | 1.8W @ 24 VDC |
| Connection | Spring-clamp terminals (0.2–2.5 mm²) |
| Certifications | UL, ATEX Zone 2, IEC 61326, SIL 2 |
Main Features and Advantages
Precision signal processing: 24-bit delta-sigma ADC technology achieves ±0.05% accuracy with programmable filtering (1–60 Hz). The PP846A’s auto-zero calibration compensates for thermal drift, critical in environments with temperature swings.
Advanced diagnostics: Continuous monitoring detects sensor degradation, wiring faults, and ground loops, triggering prioritized alarms in ABB’s 800xA DCS. Configurable alert thresholds reduce nuisance trips by 50%.
Safety and efficiency: Dual-wire redundant power inputs ensure fail-safe operation. Gold-plated contacts and conformal coating (IPC-CC-830B) withstand corrosive atmospheres. Tool-less module replacement cuts MTTR to under 3 minutes.
Application Field
The ABB PP846A 3BSE042238R2 excels in critical measurement:
Power Generation: Boiler tube temperature monitoring (640+ points per rack).
Oil & Gas: Wellhead pressure/temperature acquisition in SIL 2 HIPPS systems.
Chemical: Reactor feed flow control with HART-enabled transmitters.
Water Treatment: pH/ORP monitoring across membrane filtration stages.
In steel mills, it survives 5g vibration while acquiring blast furnace thermocouple data.
ABB PP846A 3BSE042238R2
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