Product Short Description
Product Name: ABB 408368 IAM Module (Interface & Data-processing Module for Advant OCS)
Product Introduction: The 408368 is an I/O interface and data-processing module designed for ABB’s Advant OCS distributed control system. It acts as a “switching station” between the main processor and remote I/O modules, transmitting control commands downstream and returning field-device signals (sensor data, switch states) to the controller.
Description
Technical Specifications (commonly documented):
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Manufacturer: ABB
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Product Type: IAM (I/O Access / Interface & Data-processing) Module
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System Family: Advant OCS
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Supply Voltage: 24 VDC (typical)
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Power Consumption: ~5 W typical
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Communication: I/O bus based on IP-20 (I/O Processor 20) protocol
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Operating Temperature: 0°C to +60°C (some sources state -20°C to +70°C)
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Storage Temperature: -40°C to +70°C
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Relative Humidity: 5% to 95% non-condensing
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Protection Class: IP20
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Mounting: Rack-mount (Advant OCS rack)
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Status Indication: LED indicators (power, run, fault, communication)
Alternative parameter sets from spare-part sources:
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16 isolated digital inputs, 77–130 VAC / 75–130 VDC
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8 analogue inputs + 4 analogue outputs, 4–20 mA / 0–10 V, 16-bit resolution, ≤±0.1% FS accuracy
Functional Features:
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Seamless integration into existing Advant OCS architecture
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High reliability under high-temperature, humid and EM-interference environments
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Real-time, high-speed I/O bus communication
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On-board LED diagnostics for rapid fault localization
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Plug-and-play installation (minimal configuration required)
Application Scenarios: Legacy Advant OCS control systems in power plants, petrochemical facilities, pulp & paper mills, and other process industries requiring continued spare-part support for ageing DCS installations.
Installation & Notes: Install in the designated Advant OCS rack slot. Provide stable 24 VDC. Verify the exact I/O configuration (digital vs. analogue) against your system’s I/O map. Because the 408368 is a critical communications node, a failure will halt all I/O traffic on its segment—keep a verified spare in stock.
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