ABB SPNPM22 – Network Processing Module for Symphony Plus / Bailey INFI 90 (INFI‑NET Communications)

The ABB SPNPM22 is the Symphony Plus spare-part designation for the classic Bailey INFI 90 Network Processing Module (NPM22). In practical terms, it manages INFI‑NET communications—coordinating peer-to-peer data exchange, time distribution, and network diagnostics across the control system. From my experience, this module is a go-to replacement when you need stable INFI‑NET backbone performance without touching the running application logic. It typically drops into existing INFI 90 racks, supports redundant operation, and keeps mature plants running reliably with minimal disruption.

Company’s Order Placement Process and Guarantees

• Warranty period: 365 days
• Delivery time: 1 week for in-stock; no more than one month at the latest
• Payment: 50% advance payment; full payment for delivery
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Key Features

• INFI‑NET backbone processing – Provides deterministic data handling and network services for Bailey/Symphony Plus nodes.
• Redundancy-ready – Can be paired (primary/backup) for bumpless network failover in most cases.
• Drop-in replacement – Fits standard INFI 90 module mounting units; no external power supply needed.
• Robust diagnostics – Front-panel LEDs and service port access streamline troubleshooting during startups or switchover tests.
• Time distribution support – Helps propagate time across the control network for consistent event stamps.
• Stable lifecycle support – Ideal for brownfield plants needing sustained parts availability without a full DCS migration.

Technical Specifications

Application Fields

Plants that still rely on ABB Bailey INFI 90 or Symphony Plus infrastructure generally keep a few SPNPM22 units on hand. Typical sites include:

• Power generation (coal, gas, combined cycle) – backbone communications for turbine and balance-of-plant controllers.
• Oil & gas and petrochemicals – linking process units over INFI‑NET with deterministic behavior.
• Pulp & paper – steady network timing and diagnostics across paper machine sections.
• Metals, mining & cement – maintaining peer-to-peer data flows in harsh cabinet environments.

Advantages & Value for Procurement

• Continuity without redesign – Keeps mature INFI 90 networks stable; no software rework in most cases.
• Compatibility – Works within ABB Bailey racks and existing network topologies.
• Reduced downtime risk – Redundancy capability and quick swap minimize outage windows.
• Dependable lifecycle support – Sensible choice while planning phased migrations to newer platforms.
• Tested units and warranty – Each unit is function-tested; backed by a 365-day warranty.

Installation & Maintenance

• Cabinet & environment – Install in a clean, ventilated control cabinet; maintain ambient 0–55 °C and avoid excessive vibration.
• Wiring & terminations – Follow INFI‑NET cabling practices and correct termination/impedance. Verify connectors and shielding continuity, especially on longer runs.
• Redundancy setup – When using dual NPMs, assign unique roles/addresses and perform a switchover test during commissioning.
• ESD & handling – Use grounding straps; seat the module firmly into the backplane to ensure reliable contact.
• Routine maintenance – Periodically inspect connectors, clean dust filters or cabinet intakes, check LED status trends, and back up network configurations. Firmware revisions should match your site standard before deployment.

Quality & Certifications

• Typically complies with CE requirements for industrial environments.
• UL/CSA recognition is commonly available on ABB INFI 90 modules, depending on revision.
• RoHS status can vary by vintage; many refurbished units are serviced to original specifications.
• Manufacturer’s baseline warranty is complemented by our 365-day coverage on supplied units.

Supporting Components (often used together)

• ABB SPNIS21 – Network interface module used in Symphony/INFI 90 nodes; pairs well with NPM-based networks for clean data exchange.
• ABB SPBRC410 – Bridge/Controller module commonly found in Symphony Plus upgrades; many sites keep both SPNPM22 and SPBRC410 as strategic spares.
• INFI 90 Module Mounting Unit – Standard rack chassis providing backplane power and slots for SPNPM22 and companion modules.