ABB INNPM01 Network Processing Module – Reliable INFI-NET communications for INFI 90/Symphony nodes

The ABB INNPM01 is the Network Processing Module used in legacy ABB Network 90/INFI 90 (and many Symphony Harmony) systems to manage INFI-NET communications for a node. From my experience, it’s the backbone card that keeps controller and peer-to-peer traffic moving smoothly across the plant network, while coordinating data exchange on the module backplane. You might notice that sites keep a redundant pair of INNPM01s specifically because they’re stable, predictable, and easy to swap during maintenance windows.

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• Warranty: 365 days
• Delivery: Typically 1 week if in stock; no more than 1 month latest
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Key Features

• INFI-NET Network Processing – Routes and manages INFI-NET traffic for the node, typically ensuring deterministic communications between controllers and peer devices.
• Backplane Coordination – Handles data exchange with the module bus/backplane so controller and I/O modules see timely, consistent data.
• Redundancy-Friendly – Commonly deployed as a redundant pair; switchover is straightforward in most cases, minimizing downtime.
• Onboard Diagnostics – Status LEDs and error codes simplify troubleshooting; maintenance teams can identify issues without a laptop in many cases.
• Lifecycle-Friendly – A proven, stable design; widely used in brownfield upgrades when plants need to extend INFI 90 node life.
• No Direct Field I/O – Serves as the network engine; all signal I/O remains at controller and I/O modules, reducing wiring complexity at this card.

Technical Specifications

Related or Supporting Products

• ABB INNPM22 – Later-generation network processing module with enhanced performance and diagnostics; often used as an upgrade path.
• ABB INNIS01 – INFI-NET interface module used for network interfacing and node communications in larger topologies.
• ABB INICT03 – Computer transfer/communication interface for linking INFI 90 nodes to higher-level systems.
• ABB IMMFP03/IMMFx series – Multi-function processor modules working with the NPM to execute control strategies on the backplane.

Installation & Maintenance

One thing I appreciate is how predictable these modules are when the installation basics are done right. Typical best practices:

• Cabinet and Environment – Mount in a clean, dry cabinet with adequate ventilation. Maintain 0–60 °C and keep dust to a minimum to avoid heat build-up.
• Wiring & Grounding – Follow ABB grounding practices; keep network cable shields properly terminated. Maintain bend radius and separation from high-voltage lines.
• Redundancy Setup – If using a redundant pair, verify firmware compatibility and node addressing on both modules before commissioning.
• Hot-Swap Caution – Many sites perform on-line replacement only when a redundant mate is healthy; follow site procedures and ESD precautions.
• Routine Care – Quarterly visual checks for connector seating and dust. Firmware updates are seldom but should match plant standards. Log any LED/error codes for trend diagnostics.

A maintenance lead recently told us, “We swapped an INNPM01 pair during a planned outage; the node came back clean on first boot, and our historian data showed no anomalies.” That’s fairly typical when the network terminations and grounding are tidy.

Quality & Certifications

• Certifications – CE and UL/cUL typically applicable; RoHS depends on manufacturing revision. Produced under ISO 9001 quality systems.
• Manufacturer Warranty – ABB factory terms apply where available; our supply includes a 365-day warranty for repair/replace.