AI880A
High Integrity Analog Input · 8 Channels · 3BSE039293R1
Lifecycle note: AI880A supports High Integrity applications but is not an intrinsically safe input module. Preserve channel settings and follow the approved system procedure before replacing safety-related equipment.
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+86 153 5940 8275High Integrity Analog Input · S800 I/O
ABB AI880A, article number 3BSE039293R1, is an eight-channel High Integrity analog input module for the S800 I/O system. It accepts unipolar, single-ended 0–20 mA and 4–20 mA signals with 12-bit resolution. The module supports single or redundant configurations and HART pass-through communication; its eight channels are isolated from the ModuleBus as one group.
AI880A uses a 250 Ω input impedance with the TY801 shunt stick and distributes supervised, current-limited transmitter power to individual channels. ABB specifies a 10 ms update cycle and a 190 ms hardware-filter rise time from 0 to 90%, which describe different aspects of signal acquisition. Configurable current-input limits support NAMUR NE43 applications, while internal voltage, field-power input and per-channel field-power output supervision aid fault diagnosis.
For engineering, system integration and MRO procurement, match the installed MTU, shunt arrangement, HART path and configured alarm limits to the project records. ABB lists TU834, TU844, TU845 and TU854 as compatible MTUs. Verify cabinet orientation and temperature limits, document channel-level commissioning results, and assess any safety-related replacement through the approved site procedure. The linked original ABB S800 I/O outline explicitly identifies AI880A and 3BSE039293R1.
| Model / article number | ABB AI880A / 3BSE039293R1 |
|---|---|
| Channels / signal type | 8; unipolar, single-ended current inputs |
| Input ranges / resolution | 0–20 mA or 4–20 mA / 12 bits |
| Input impedance | 250 Ω with TY801 shunt stick |
| Maximum error / temperature drift | 0.1% / 50 ppm/°C |
| Hardware filter / update cycle | 190 ms rise time (0–90%) / 10 ms |
| Overrange | +12% for 0–20 mA; +15% for 4–20 mA |
| Input voltage / field cable | 11 VDC maximum, non-destructive / 600 m maximum |
| Insulation / dielectric test | 50 V rated insulation / 500 VAC dielectric test |
| ModuleBus current / dissipation | 45 mA at +5 V; maximum 50 mA at +24 V / 2.4 W |
| External 24 V current | 4 mA + transmitter current; maximum 260 mA |
| HART / configuration / MTUs | HART pass-through; single or redundant; TU834, TU844, TU845, TU854 |
| Temperature / enclosure | 0 to +55 °C operating; approvals +5 to +55 °C; vertical compact MTU maximum +40 °C / IP20 |
| Dimensions / weight | 45 W × 119 H × 102 D mm; 111 mm depth including connector / 0.15 kg |
Preserve the input range, alarm thresholds, HART configuration and approved safety application records before replacement.
Using ABB’s specified 250 Ω impedance, the voltage drop is 5 V at 20 mA. Include this burden, cable losses and any other series devices when checking transmitter compliance voltage. The shunt voltage does not turn AI880A into a general-purpose 0–5 V input module.
Record the selected current range and the configured under-range, over-range and alarm limits for each channel. ABB states NE43 support and configurable limits; do not assume a copied default matches the transmitter’s fault-current behaviour. Include low- and high-fault current injection in the agreed channel verification.
AI880A supervises field-power output per channel as well as its common field-power input and internal voltage. Review channel diagnostics and the affected loop’s wiring and load alongside module status. This distinction helps separate a channel-specific problem from a common supply issue without assuming the whole module has failed.
No. The published process-input ranges remain 0–20 mA and 4–20 mA. Treat HART pass-through as the supported communication path for a compatible HART workflow, and verify the host and field-device configuration separately from the analog scaling and safety application.
The 10 ms figure is the module update cycle; 190 ms is the hardware-filter rise time from 0 to 90%. A step-input test should report the applied signal and measured response rather than require the filtered value to reach its final level in a single update. Use the complete application timing requirements when defining acceptance criteria.
Reconcile the installed MTU model with ABB’s AI880A list: TU834, TU844, TU845 or TU854. ABB also specifies keying code FD. Record the actual MTU and keying arrangement in the replacement documentation; similar external shapes alone do not establish suitability.
ABB lists a general maximum ambient temperature of 55 °C but limits vertical mounting in a compact MTU to 40 °C. Check the actual mounting arrangement and local cabinet temperature before accepting the installation. The specification also distinguishes the operating range from the temperature range covered by approvals.
No. ABB lists High Integrity as supported and intrinsic safety as not supported for AI880A. A safety-system classification and an intrinsically safe field circuit are separate requirements. Have the responsible engineer verify the complete loop and any required interfaces against the applicable project and manufacturer documentation.
Send the model, complete part number, quantity, destination and nameplate photo. We will verify identification details before confirming availability and lead time.
Official PDF: ABB S800 I/O Outline — AI880A. File size is below 1 MB; verify the exact installed hardware and configuration before use.
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