Schneider Electric Modicon Quantum 140 Modules: 140DSI35300

Technical Dossier

Product Details And Specifications

Schneider Electric Modicon Quantum 140 Series Technical Notes

The Schneider Electric Modicon Quantum 140 series is a high-performance programmable automation controller (PAC) platform deployed across the most demanding segments of global heavy industry. Installations span petrochemical complexes, nuclear power generation facilities, offshore oil and gas platforms, refinery distributed control systems (DCS), and large-scale water treatment infrastructure. The platform's 32-bit processing architecture, deterministic scan cycle, and IEC 61131-3 compliance established it as a reference-grade controller for safety-critical and continuous-process environments throughout the 1990s and 2000s. Its modular backplane design—supporting local, remote, and distributed I/O racks—enabled system architects to scale from compact standalone controllers to multi-rack, multi-drop configurations spanning thousands of I/O points. The 140DSI35300 is a discrete input module within this ecosystem, providing 32-channel 24 VDC sink/source digital input capability for field device interfacing in high-density I/O applications.

The Evolution of Modicon Quantum 140 Architecture

The Quantum 140 platform was introduced by Modicon (subsequently acquired by Schneider Electric in 1994) as the successor to the Modicon 984 series. The architecture transitioned from the 984's proprietary Modbus-only communication model to a multi-network topology supporting Modbus Plus, Ethernet TCP/IP (via 140NOE modules), PROFIBUS DP, and DeviceNet. Early Quantum racks used the 140XBP series backplanes with a parallel I/O bus; later revisions introduced the S908 remote I/O head adapter (140CRP93100) for distributed rack expansion over coaxial cable. The CPU lineup evolved from the 140CPU11302 (16 KB RAM, no Ethernet) through the 140CPU65150 and 140CPU67160 (with integrated dual Ethernet ports and 7 MB application memory), reflecting the industry's shift toward plant-wide Ethernet integration. Compatibility constraints are significant: early-generation CPUs (140CPU11302, 140CPU21304) do not support Unity Pro programming software and require Concept or ProWORX. Backplane bus voltage and slot addressing are consistent across the 140XBP series, allowing I/O module substitution without rack replacement in most cases. The platform entered the mature/end-of-life phase circa 2015–2018, with Schneider Electric designating the Modicon M580 (BMENOC, BMEP, BMEH series) as the strategic migration path. Long-term spare parts availability is now the primary operational concern for installed-base customers.

Modicon Quantum 140 Full Catalog & Functionalities (SKU List)

Discrete Input Modules (DI)

• 140DAI34000: 32-ch 24 VDC discrete input, sink type, standard density
• 140DAI35300: 32-ch 24 VDC discrete input, isolated, CE-marked
• 140DSI35300: 32-ch 24 VDC discrete input, sink/source, high-density field wiring
• 140DAI54000: 16-ch 115 VAC discrete input, standard density
• 140DAI74000: 16-ch 230 VAC discrete input, standard density

Discrete Output Modules (DO)

• 140DAO84000: 16-ch 24 VDC discrete output, transistor source type
• 140DAO84010: 16-ch 24 VDC discrete output, transistor sink type
• 140DDO35300: 32-ch 24 VDC discrete output, high-density, sink type
• 140DAO84210: 8-ch relay output, 2A per channel, 24–230 VAC/VDC

Analog Input Modules (AI)

• 140ACI04000: 8-ch analog current input, 4–20 mA, 12-bit resolution
• 140AVI03000: 8-ch analog voltage input, ±10 V / 0–10 V, 12-bit
• 140ARI03010: 8-ch RTD/resistance input, Pt100/Pt1000/Ni100
• 140ATI03000: 8-ch thermocouple input, types J/K/T/E/R/S/B

Analog Output Modules (AO)

• 140ACO02000: 4-ch analog current output, 4–20 mA, 12-bit
• 140AVO02000: 4-ch analog voltage output, 0–10 V / ±10 V, 12-bit

CPU / Controller Modules

• 140CPU65150: Quantum CPU, 3.5 MB RAM, single Ethernet port, Unity Pro compatible
• 140CPU67160: Quantum CPU, 7 MB RAM, dual Ethernet, hot standby capable
• 140CPU11302: Legacy Quantum CPU, 16 KB RAM, Modbus/Modbus Plus only

Communication & Network Modules

• 140NOE77101: Ethernet TCP/IP network option module, 10/100 Mbps
• 140CRP93100: S908 remote I/O head adapter for distributed rack expansion
• 140NOM21200: Modbus Plus network option module

Power Supply Modules

• 140CPS11420: 115/230 VAC input power supply, 3A @ 5 VDC bus
• 140CPS21400: 24 VDC input power supply, 8A @ 5 VDC bus