Application Scenarios
A legacy fossil-fuel power station operates its boiler and turbine auxiliary control on a Bailey Infi 90 DCS that has been in continuous service for over two decades. The plant’s engineering team wants to extract real-time boiler drum level, feedwater flow, and mill status data into a modern historian for performance monitoring and regulatory reporting, but the Infi-Net network is a closed, deterministic highway that does not natively speak Ethernet or OPC. The INICT13A serves as the bridge: it connects to the Infi-Net loop and presents the collected process data to a supervisory computer through its computer-side interface, allowing the historian to poll values without interfering with the control modules’ scan cycles. For plants where the DCS remains the authoritative control layer but the business side demands visibility, the INICT13A provides a continuity path that avoids the cost and risk of a full control-system migration.
Parameter
| Parameter | Value/Description |
|---|---|
| Product Model | INICT13A (also cataloged as ICT13A, SPICT13A) |
| Manufacturer | ABB Bailey |
| Product Category | Infi-Net to Computer Transfer Module |
| System Compatibility | ABB Bailey Infi 90 and Net 90 DCS |
| Primary Function | Real-time data transfer between Infi-Net and external computers |
| Network Interface | Infi-Net control network |
| Data Transfer | Bi-directional exchange for monitoring, configuration, and diagnostics |
| Diagnostic Indicators | LED indicators for power, communication status, and fault conditions |
| Power Supply | Provided through the Infi 90 system backplane |
| Mounting | Standard Infi 90 module mounting unit |
| Operating Temperature | –20°C to +60°C (per distributor specifications) |
| Storage Temperature | –40°C to +70°C |
| Humidity | 5% to 95% non-condensing |
| Approximate Weight | 0.5 kg (distributor-listed) |
Parameter note: Distributor listings for legacy ABB Bailey modules vary in their reported specifications, and the values above reflect commonly cited figures rather than an official ABB datasheet . The module’s power is drawn from the Infi 90 backplane, so no separate supply wiring is required. The computer-side interface type is configuration-dependent and should be verified against the existing Infi 90 architecture before ordering a replacement .
Technical Principles and Innovative Values
- Dedicated Data Path Separate from the Control Highway: The INICT13A does not inject its traffic into the same logical channel that carries control-module-to-control-module exception reports. It functions as a transfer module within the Infi-Net architecture, collecting and presenting data to the computer side while the DCS’s process control units continue their deterministic communication over the Infi-Net ring. In a plant where a control-room operator station and a supervisory historian both need data, this separation prevents a slow or disconnected computer from affecting the scan time of the boiler control loops.
- Compatibility with the Infi 90 Legacy Ecosystem: The INICT13A is designed specifically for Infi 90 and Net 90 installations, meaning it integrates with the existing module mounting units, backplane power, and network termination hardware without requiring adapters or protocol converters . For a plant that has already invested in Bailey controllers, I/O modules, and termination units, this direct compatibility reduces the commissioning effort to slot insertion, network connection, and configuration verification—no new cabinet infrastructure or gateway configuration is necessary.
- Diagnostic Visibility Without Additional Instrumentation: The module’s LED indicators provide at-a-glance status for power, communication activity, and fault conditions . During commissioning or troubleshooting, engineers can use these indicators to confirm whether the module is communicating with the Infi-Net side, the computer side, or both. In a legacy installation where documentation may be incomplete, this front-panel feedback shortens the diagnostic loop compared with modules that require software tools to reveal communication health.