172PNN21022 SCHNEIDER

172PNN21022 SCHNEIDER Input module

Brand：SCHNEIDER Model number：172PNN21022

Country of origin: France Product weight：0.55kg

HS code：853710119

Product Details：

Product Dimensions：

The Schneider Electric Modicon Momentum 172PNN21022 is a dedicated Modbus Plus communication option adapter designed for the Modicon Momentum automation platform. It functions as an interface module that snap-mounts onto a Momentum M1 processor adapter or I/O base to provide high-speed, peer-to-peer Modbus Plus networking capabilities. By enabling deterministic multi-drop communication across industrial facilities, the 172PNN21022 allows distributed Momentum I/O nodes and controllers to seamlessly exchange data with supervisory PLCs, SCADA systems, and human-machine interfaces without requiring complex protocol translation.

Product Parameters

Product Line: Schneider Electric Modicon Momentum platform.
Module Type: Modbus Plus Communication Option Adapter.
Part Number: 172PNN21022.
Network Protocol: Modbus Plus token-passing industrial network protocol.
Data Transmission Rate: 1 Mbit/s deterministic network speed.
Communication Ports: Dual RS-485 Modbus Plus ports providing redundant network connection capabilities.
Connector Type: Standard 9-pin D-subminiature female connectors.
Power Supply: Powered internally through the associated Modicon Momentum base unit or processor adapter.
Mounting Method: Direct snap-on stack mounting onto Momentum I/O bases or CPU modules.
Status Indicators: Integrated LED indicators displaying module status, network activity, and diagnostic errors.
Operating Temperature: 0°C to 60°C (32°F to 140°F).
Storage Temperature: -40°C to 85°C (-40°F to 185°F).
Relative Humidity: 5% to 95% non-condensing environment.

Product Advantages

The 172PNN21022 option adapter delivers reliable token-ring communication performance, allowing high-speed, deterministic message transfer between controllers and field devices across demanding plant environments.

Its modular snap-on form factor minimizes installation time and eliminates the need for complex external bus cabling or separate power supply connections to the option card itself.

The inclusion of dual ports offers cable redundancy, significantly improving network availability and fault tolerance in critical process applications.

It allows industrial facilities to leverage existing Modbus Plus network infrastructure while expanding distributed I/O capacity using compact Modicon Momentum hardware.

Important Considerations and Precautions

Ensure the host Momentum base unit or processor adapter is completely powered off before installing or removing the 172PNN21022 adapter to avoid damage to internal bus connectors.

Proper network termination resistors must be installed at both physical ends of the Modbus Plus trunk cable to maintain signal integrity and prevent data corruption.

Shielded twisted-pair cabling designed specifically for Modbus Plus networks must be routed away from high-voltage power conduits and variable frequency drives to minimize electromagnetic noise.

Each network node must be assigned a unique Modbus Plus address before bringing the station online to prevent node conflicts.

Adequate cabinet ventilation must be maintained to ensure ambient operating temperatures remain within the specified operational thermal range.

Product Applications

The 172PNN21022 communication option adapter is widely deployed across industrial automation and infrastructure systems where Modbus Plus connectivity is required.

Distributed Control Systems: Integrating remote Modicon Momentum I/O drops into centralized Modbus Plus control architectures managed by Quantum or Compact controllers.
Water and Wastewater Treatment: Interfacing localized pump controls, flow monitoring stations, and chemical dosing systems with central SCADA networks.
Manufacturing and Assembly Lines: Enabling peer-to-peer inter-controller communication between adjacent automated workstations for synchronized material handling.
Energy Management and Utilities: Connecting distributed power monitoring devices, switchgear controllers, and substations to plant-wide monitoring systems.
Material Handling Systems: Connecting distributed conveyor control units along extensive transport routes to maintain deterministic tracking and sorting operations.

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