ABB IMNPM01 INFI 90 Network Processor Module

The ABB IMNPM01, also cataloged as the IMNPM01 Network Processor Module, operates as a dedicated hardware component for protocol conversion, real-time data buffering, and network gateway execution within ABB Bailey INFI 90 and Symphony Plus platforms. It executes bidirectional communication management between the high-speed Infi-Net plant loop and localized controller backplane buses, supporting dual-port RAM operations to prioritize process control telemetry.

Hardware Specifications

Deterministic Networks & Backplane Bus Communication

The IMNPM01 module incorporates dual-processor architecture and dual-port RAM to manage high-speed data buffer exchanges without introducing backplane latency. Operating across deterministic networks at up to 2 Mbps, the processor prioritizes real-time process control data and critical alarm transmission across distributed INFI 90 racks. Firmware flash compatibility ensures synchronized network protocol execution when paired with an adjacent redundant processor module. The onboard CS31 bus interface enables RS-485 serial communication, maintaining deterministic cycle times across complex I/O density scaling configurations.

Frequently Asked Questions

Q: Does the IMNPM01 support online replacement while the backplane bus remains powered?

A: The IMNPM01 features hot-swappable module architecture. However, technicians must verify that the redundant secondary network processor has full control of the Infi-Net communication loop before extracting the active module to avoid bus communication interruption.

Q: What primary supply voltage is required from the backplane rack assembly?

A: The module draws power directly from the internal system backplane power rail, requiring a regulated +5 VDC supply with maximum consumption capped at 10 W.

Field Installation Guidelines

Follow standard industrial automation practices during installation to ensure deterministic communication performance:

1. Insert the IMNPM01 module firmly into the designated slot of the standard ABB Harmony or INFI 90 module rack until backplane connectors seat completely.
2. Secure top and bottom panel retention screws to maintain continuous ground continuity with the cabinet rack chassis.
3. Verify that the matching IMMPI01 terminal module or interface cable assembly is correctly latched to the rear backplane slot.
4. Route all external network communication wiring away from high-voltage AC cables and variable frequency drive outputs within cabinet raceways.
5. Terminate shielded twisted-pair communication cables at the single-point cabinet system ground busbar to mitigate ground loop noise on serial links.