Product Overview
In hazardous process environments, reliable signal acquisition is critical. The ABB AI930B analog input module (AI4H-B) delivers robust performance for connecting intrinsically safe field devices in Zone 2, Zone 1, or Zone 0. As part of the S900 I/O system, the AI930B supports 4...20 mA loop-powered 2-wire transmitters and communicates via PROFIBUS DP, reducing marshalling and wiring costs by installing directly in the field. The ABB AI930B is engineered for demanding applications, offering ATEX certification for Zone 2, hot swap capability, and extended diagnostics.
Key Features & Benefits
- ATEX certification for installation in Zone 2
- Power and communication redundancy
- Hot configuration in run and hot swap functionality
- Extended diagnostics and excellent configuration via FDT/DTM
- G3 coating for all components (ISA-S71.04 G3)
- Simplified maintenance with auto-diagnostics
- Power supply for 4...20 mA loop-powered 2-wire transmitters
- Short and break detection
- Electrical isolation between input/bus and input/power
- Common return for all 4 input channels
- Transmission of HART frames via fieldbus and cyclic HART variables
Technical Specifications
| Parameter |
Value |
| Article Number |
3KDE175512L9300 |
| Type |
Analog Input |
| Number of Channels |
4 |
| Signal Type |
4...20 mA |
| HART |
Yes |
| SOE |
N/A |
| Redundancy |
No |
| Intrinsic Safety |
Yes |
| Mechanics |
S900 |
| CE Mark |
Yes |
| Hazardous Location |
ATEX Zone 2 |
| Corrosive Atmosphere |
ISA-S71.04 G3 |
| Relative Humidity (max) |
93% ± 3% at 40°C |
| Max Ambient Temperature |
-20 °C...60 °C |
| RoHS Compliance |
DIRECTIVE/2011/65/EU (EN 50581:2012) |
| WEEE Compliance |
DIRECTIVE/2012/19/EU |
| WEEE Category |
Small Equipment (No External Dimension More Than 50 cm) |
| Width |
20 mm (0.79 in.) |
| Depth |
104 mm (4.09 in.) |
| Height |
104 mm (4.09 in.) |
| Weight |
0.14 kg (0.31 lbs.) |
Industry Applications
The ABB AI930B excels in oil and gas, chemical, and pharmaceutical plants where hazardous area classifications demand intrinsically safe I/O. For example, in a Zone 2 process unit, the AI930B connects 4-wire transmitters for pressure or temperature, transmitting HART data over PROFIBUS DP for remote monitoring. Its ATEX certification and G3 coating ensure reliable operation in corrosive atmospheres. The hot swap feature allows module replacement without interrupting the primary voltage, minimizing production downtime—a key advantage for continuous processes.
Installation & Setup Guidance
Install the ABB AI930B on a standard S900 I/O rail in a Zone 2 area. Ensure the bus connector is properly seated and the module is mechanically locked. Wire the 4...20 mA loop-powered transmitters to the input terminals, observing polarity and using shielded cables for best noise immunity. For intrinsic safety, verify that the field devices and cabling meet the ATEX requirements. The module supports hot configuration, so you can adjust parameters while the system is running. Always follow the S900 I/O system manual for specific wiring and mounting details.
Maintenance & Reliability
Routine maintenance for the AI930B is minimal due to its auto-diagnostics and hot swap design. Periodically inspect the module for dust or corrosion, especially in G3 environments. Check the bus communication status and review diagnostic logs via FDT/DTM. The module's integrated disconnection mechanisms allow safe replacement during operation, reducing maintenance time and cost. By choosing the ABB AI930B, you invest in long-term reliability and simplified serviceability.
Compatibility & Integration
The AI930B is part of the ABB S900 I/O system, which communicates with control systems using PROFIBUS DP. It integrates seamlessly with ABB and third-party controllers that support PROFIBUS DP. The module supports HART communication, enabling asset management and predictive maintenance. For redundant power and communication, configure the S900 I/O system accordingly—the AI930B itself does not provide redundancy but works within a redundant architecture.
Buying Guide
Before purchasing, verify that your control system supports PROFIBUS DP and that the AI930B matches your field device signal requirements (4...20 mA). Confirm the hazardous area classification (Zone 2) and ensure the module's ATEX certification meets your site regulations. The article number for this module is 3KDE175512L9300. PLC Source PRO offers genuine ABB AI930B modules with fast shipping and reliable support. Contact our team for availability and bulk pricing.