Technical Specifications
| Parameter | Value |
|---|---|
| Product Model | 3BHE022293R0101 |
| Manufacturer | ABB |
| Module Series | PCD232 |
| Product Type | Communications I/O Module |
| Operating Voltage | 24 VDC |
| Communication Interface | RS-485 |
| Communication Protocol | Modbus RTU (industrial standard) |
| Digital Inputs | 16 channels |
| Digital Outputs | 16 channels |
| Data Transfer Rate | Up to 1 Mbps |
| Power Consumption | 15 W max |
| Operating Temperature | -25 °C to +60 °C |
| Storage Temperature | -40 °C to +85 °C |
| Enclosure Rating | IP20 |
| Dimensions (D×H×W) | 175.26 mm × 35.56 mm × 297.18 mm |
| Weight | 0.6 kg |
| Certifications | CE, UL, CSA |
| Reliability Rating | 99.99% |
| Mounting | Standard control cabinet / rack installation |
Main Features and Advantages
The 3BHE022293R0101 stands out in ABB’s communications I/O portfolio by merging protocol processing and local digital I/O into a single, space-efficient module. This dual-role architecture eliminates the need for separate communication cards and I/O modules, reducing total installed cost and simplifying spare parts inventory for plant maintenance teams. The 3BHE022293R0101 leverages a dedicated communication co-processor to handle the Modbus RTU protocol stack independently, freeing the host controller’s CPU for core control algorithm execution while ensuring deterministic, low-latency field data exchange.
High-speed, noise-resistant communication:
The integrated RS-485 physical layer of the 3BHE022293R0101 supports data rates up to 1 Mbps and features robust noise immunity essential for high-voltage switchyards, variable frequency drive enclosures, and heavy-industrial environments. The differential signaling of RS-485, combined with the module’s industrial-grade circuit design, allows reliable communication over long cable runs—often exceeding 1,200 meters—without signal repeaters.
Comprehensive local I/O capacity:
With 16 digital inputs and 16 digital outputs, the 3BHE022293R0101 provides immediate, low-latency access to discrete field signals without requiring an additional I/O module. Input channels acquire status from pushbuttons, limit switches, relay contacts, and proximity sensors, while output channels drive indication lamps, solenoid valves, and interposing relays. This integrated I/O makes the 3BHE022293R0101 especially valuable in excitation control and turbine auxiliaries, where fast, deterministic discrete control is as important as fieldbus communication.
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