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ABB HIA805 – 8-Channel Analog Input Module with HART
Product Overview
The ABB HIA805 is a high‑precision analog input module designed for Symphony Plus and Advant OCS distributed control systems. It provides 8 galvanically isolated channels for reading 4–20 mA current or ±10 V voltage signals from field sensors, transmitters, and instrumentation devices. Its primary role is to convert analog process signals into digital data for monitoring, closed‑loop control, and data logging in power, petrochemical, and water treatment plants. With built‑in HART modems per channel, the unit enables bi‑directional communication with smart field devices, supporting configuration, diagnostics, and asset management. The compact, DIN‑rail form factor eases integration into standard control cabinets.
Technical Specifications — HIA805
| Parameter | Value |
|---|---|
| Product Model | HIA805 |
| Manufacturer | ABB |
| Product Type | Analog Input Module, 8‑Channel |
| Power Supply | 24 V DC (19.2–32 V DC), <3 W |
| Communication / Protocol | HART, Modbus RTU, RS‑485 |
| Operating Temperature | -40 °C to +70 °C |
| Mounting | DIN rail (EN 60715), hot‑swap capable |
| Dimensions (H×W×D) | 110 × 120 × 30 mm |
| Weight | 0.35 kg |
| Typical Interfaces | 8× isolated analog inputs, HART per channel |
| Compliance | CE, UL, IEC 61000‑6‑2, IP20 |
ABB HIA805
Key Features and Benefits — HIA805
- High‑Accuracy Acquisition: 16‑bit resolution with ±0.1% FS accuracy ensures reliable process data.
- Channel‑to‑Channel Isolation: 2500 V DC isolation reduces ground loops and noise interference.
- HART Compatibility: Integrated modems allow access to smart device diagnostics and parameters.
- Wide Signal Support: Configurable for 4–20 mA, 0–10 V, and ±10 V ranges.
- Robust Environmental Performance: Operates reliably in extreme temperatures and high EMI areas.
- Diagnostic Functions: Wire break and over‑range detection simplify maintenance.
Related Models
- HIA806: 16‑channel analog input module for high‑density signal collection.
- HIA804: 4‑channel isolated analog input module for cost‑effective applications.
- HDO805: Analog output module for 4–20 mA control signal generation.
- HDI805: Digital input module for discrete sensor and contact monitoring.
Installation and Maintenance — HIA805
Mount the module on a standard DIN rail in a grounded control cabinet and ensure adequate ventilation. Connect the 24 V DC power supply and field wiring to the removable terminal block, observing correct polarity and signal type. Verify power and communication LEDs after power‑up. For maintenance, inspect connections quarterly and clean the unit with a dry cloth to prevent dust buildup. Check for loose terminals or corrosion in humid environments. Avoid exposure to corrosive gases or excessive vibration. Back up configuration before replacement or firmware updates. Proper installation and periodic checks ensure stable, long‑term performance in process automation systems.
