Schneider TSX3721001 Modular Base Controller – Momentum Series
Schneider TSX3721001 Modular Base Controller: Procurement Strategy & Asset Value in a Constrained Supply Chain The Schneider Electric TSX3721001 is…
Model: 170MCI00100
Product Overview
Commercial availability is handled through direct RFQ, model verification and export-oriented follow-up rather than public cart checkout.
Datasheet Preview
Use attached product manuals when available. If the manual is not public yet, request the full file directly through RFQ.
Commercial Path
Product pages on DRIVEKNMS are designed to verify model, brand and series first, then move the buyer into one clean quotation path.
Technical Dossier
The Schneider Electric Modicon Momentum 170M series is a modular programmable automation controller (PAC) platform deployed across global heavy industry sectors including petrochemical refineries, nuclear power generation facilities, offshore oil & gas platforms, and continuous-process chemical plants. Its distributed I/O architecture — based on a two-part assembly of an I/O base and a communication adapter — allows field-level intelligence without centralized rack infrastructure. Installed base counts in the hundreds of thousands of nodes globally, with active deployments spanning 20+ years in safety-critical environments where replacement cycles are long and spare parts availability is operationally critical.
The Momentum platform was introduced by Schneider Electric (then Modicon/AEG Schneider) in the mid-1990s as a response to the industry demand for distributed, rack-free I/O. The architecture separates the I/O base (which handles field wiring and signal conditioning) from the communication adapter (which handles network protocol and, in some variants, embedded CPU logic). This two-layer design allowed users to swap communication protocols — Modbus Plus, Ethernet TCP/IP, Profibus DP, DeviceNet, Interbus — without rewiring field terminals.
Early generations (circa 1996–2002) used Modbus Plus (170MCI00100 class) and proprietary backplane communication. The mid-generation (2002–2010) introduced Ethernet-native adapters (170ENT11001, 170ENT11002) and expanded the I/O base catalog to include high-density analog and specialty function modules. The late-generation (2010–2018) saw the introduction of Unity-compatible CPU adapters (170CPU67160, 170CPU67260) capable of running IEC 61131-3 structured text and function block programs natively on the Momentum node. Schneider Electric officially announced end-of-sale for the majority of the 170M series in 2018–2020, transitioning customers toward the Modicon M340 and M580 platforms. However, the installed base remains active, and long-term maintenance support (LTMS) parts continue to be sourced through authorized distributors and specialist suppliers.
Communication Adapters
CPU / Controller Adapters
Discrete I/O Bases
Analog I/O Bases
Power Supplies
With Schneider Electric's end-of-sale declaration for the majority of the 170M series, procurement teams at refineries, power utilities, and chemical plants face increasing lead times and counterfeit risk when sourcing replacement modules through standard distribution channels. DriveKNMS maintains a dedicated inventory of tested, genuine Modicon Momentum 170M modules — including communication adapters, CPU modules, and I/O bases — sourced from decommissioned plant equipment, authorized surplus, and verified secondary market channels.
For end-users operating under IEC 61511 (functional safety) or IEC 62443 (industrial cybersecurity) frameworks, DriveKNMS provides full traceability documentation including original manufacturer date codes, firmware revision records, and test certificates. Emergency same-day dispatch is available for critical spares. Long-term maintenance agreements (LTMAs) covering multi-year spare parts reservation are available for large installed-base operators.
Each 170M series module processed by DriveKNMS undergoes a structured inspection and functional test protocol designed around the specific electrical and communication characteristics of the Momentum platform: