Schneider Electric Modicon Quantum 171CCC96030 Modules

Technical Dossier

Product Details And Specifications

Schneider Electric Modicon Quantum Series: Comprehensive Module Range and Technical Overview

The Schneider Electric Modicon Quantum platform is one of the most widely deployed programmable automation controller (PAC) architectures in global heavy industry. Installed across petrochemical refineries, nuclear power generation facilities, offshore oil & gas platforms, and large-scale chemical processing plants, the Quantum series established a benchmark for high-availability, rack-based control architecture throughout the 1990s and 2000s. Its S908 remote I/O bus, deterministic scan cycle, and hot-standby redundancy capability made it the preferred choice for Safety Instrumented Systems (SIS) and distributed control applications requiring continuous uptime. The 171CCC96030 is a Quantum-series communication co-processor module providing peer-to-peer Modbus Plus network connectivity, enabling high-speed data exchange between Quantum racks and third-party devices across large plant topologies.

The Evolution of Modicon Quantum Architecture

The Modicon Quantum platform was introduced by Modicon (later acquired by Schneider Electric in 1994) as a successor to the Modicon 984 series. The architecture is built around a proprietary backplane bus supporting modular CPU, I/O, communication, and power supply modules in a common rack form factor (3, 6, 10, and 16-slot configurations).

Generation 1 (Early 1990s): Initial Quantum CPUs (140CPU11302, 140CPU11303) used Modbus Plus as the primary peer network. I/O expansion relied on the S908 remote I/O coaxial bus with head-end adapters (140CRP93200).

Generation 2 (Late 1990s – 2000s): Introduction of Ethernet TCP/IP communication modules (140NOE77100, 140NOE77101) and expanded CPU processing power (140CPU65150, 140CPU65160). The 171CCC-series co-processor modules (including the 171CCC96030) were introduced to offload Modbus Plus network management from the primary CPU, enabling deterministic scan times in high-node-count networks.

Generation 3 / Migration Era (2010s–present): Schneider Electric introduced the Modicon M580 (ePAC) as the designated successor to the Quantum platform. The M580 uses Ethernet as its native backplane bus (EtherNet/IP) and supports direct migration from Quantum I/O racks via the BMECRA31210 remote adapter. The Quantum platform entered the Active Maintenance phase and select modules have been declared End of Life (EOL). Customers operating Quantum installations are advised to maintain critical spare inventories, particularly for communication co-processors and CPU modules, as lead times for new production units have extended significantly.

Modicon Quantum Full Catalog & Functionalities (SKU List)

CPU Modules

140CPU11302: Quantum CPU, 512KB memory, Modbus Plus port, no Ethernet.
140CPU11303: Quantum CPU, 512KB memory, dual Modbus Plus ports.
140CPU43412U: Quantum CPU, 1MB user memory, single Ethernet port, Unity Pro compatible.
140CPU65150: Quantum CPU, 3.5MB memory, dual Ethernet, hot-standby capable.
140CPU65160: Quantum CPU, 7MB memory, dual Ethernet, enhanced hot-standby.

Communication Co-Processor Modules (171CCC Series)

171CCC96030: Modbus Plus co-processor adapter, 1-port, rack-mount, offloads MBP network from CPU.
171CCC96020: Modbus Plus co-processor, earlier revision, compatible with Gen 1 Quantum racks.
171CCC98030: Modbus Plus co-processor, extended node support variant.
171CCC76030: Compact co-processor module for reduced rack configurations.

Ethernet Communication Modules

140NOE77100: Quantum Ethernet TCP/IP module, 10/100 Mbps, Modbus TCP server.
140NOE77101: Quantum Ethernet module, enhanced web server, SNMP support.
140NOE77111: Quantum Ethernet module, dual-port, ring topology support.

Remote I/O Head-End Adapters

140CRP93200: S908 remote I/O head-end adapter, coaxial bus, up to 31 drops.
140CRA93200: S908 remote I/O drop adapter, rack-mount.

Discrete Input/Output Modules

140DAI74000: 32-channel 24VDC discrete input module, sink type.
140DAO84000: 32-channel 24VDC discrete output module, source type.
140DDI35300: 16-channel 125VDC discrete input module, isolated.

Analog Input/Output Modules

140ACI04000: 4-channel analog current input, 4–20mA, 12-bit resolution.
140ACO13000: 2-channel analog current output, 4–20mA.
140AVI03000: 4-channel analog voltage input, ±10V, 12-bit.

Power Supply Modules

140CPS11420: Quantum power supply, 115/230VAC input, 5VDC/8A output.
140CPS21400: Quantum power supply, 24VDC input, redundancy-capable.

Sourcing Hard-to-Find & Obsolete Modicon Quantum Parts

The Modicon Quantum platform has entered the Active Maintenance and selective End-of-Life phase. Schneider Electric has formally discontinued production of several 171CCC-series co-processor modules, including the 171CCC96030, with no direct new-production replacement available within the Quantum form factor. For facilities operating Quantum-based control systems under long-term maintenance contracts or deferred migration schedules, maintaining a verified spare inventory of communication co-processors is operationally critical.

DriveKNMS maintains a dedicated inventory of Quantum-series modules sourced from decommissioned plant equipment, authorized surplus channels, and factory-refurbished stock. Each unit is cataloged by part number, hardware revision, and firmware version where applicable. For the 171CCC96030 and related 171CCC variants, DriveKNMS provides: verified pull units with full functional test records, factory-sealed new-old-stock (NOS) units where available, and cross-reference support for identifying compatible revision substitutes. Inquiries for bulk spare packages (covering CPU + communication + power supply modules) for a single Quantum installation are handled on a project basis with lead time commitments.

Quality Control for the Modicon Quantum Range

Quantum-series communication co-processor modules such as the 171CCC96030 present specific test challenges due to their reliance on the Modbus Plus physical layer (RS-485 derivative, token-passing protocol) and their tight integration with the Quantum backplane bus. DriveKNMS applies the following test protocol to all Quantum communication modules:

Backplane Bus Integrity Test: Module is seated in a live Quantum test rack and backplane communication is verified via Unity Pro diagnostic tools. Slot addressing and module recognition are confirmed before functional testing proceeds.

Modbus Plus Network Test: The 171CCC96030 is connected to a two-node Modbus Plus test network. Token rotation, node addressing, and peer-to-peer data exchange are verified at rated network speed (1 Mbps). Error counters are monitored over a minimum 30-minute soak period.

Thermal Cycling: Modules are subjected to a thermal soak at 55°C for 2 hours to identify latent component failures common in aged electrolytic capacitors on the co-processor board.

Firmware Revision Verification: Hardware revision label and internal firmware version are recorded and cross-referenced against Schneider Electric's compatibility matrix for the target CPU firmware version.

All tested units are issued a DriveKNMS test certificate with date, technician ID, and pass/fail criteria documented.

© 2026 DriveKNMS. All trademarks belong to their respective owners. Specifications are for reference only and subject to change without notice. Verify all parameters against official documentation before installation.