Schneider Electric TSX DMZ Series Modules

Technical Dossier

Product Details And Specifications

Schneider Electric TSX DMZ Series: Comprehensive Module Range and Technical Overview

The Schneider Electric TSX DMZ series constitutes the discrete and analog I/O expansion module family for the TSX Premium programmable logic controller platform. Deployed across global heavy industry — including petrochemical complexes, nuclear power auxiliary systems, offshore oil & gas platforms, and continuous-process refineries — the TSX Premium PLC with its TSX DMZ I/O base architecture has accumulated a substantial installed base since its commercial introduction in the mid-1990s. The platform's modular rack-and-bus design, deterministic scan cycle, and IEC 61131-3 compliance made it a preferred choice for safety-adjacent and high-availability process control applications. As of 2026, the TSX Premium line has entered its end-of-commercialization phase, making reliable spare parts sourcing a critical operational requirement for facilities maintaining these systems through their extended lifecycle.

The Evolution of TSX DMZ Architecture

The TSX DMZ module family was engineered as the field I/O layer for the TSX Premium CPU rack (TSX P57 series). Modules connect via the TSX Premium backplane bus, which uses a proprietary parallel bus architecture distinct from the later Modicon M340 (BMX) and M580 (BME) Ethernet-based I/O buses. Early TSX DMZ modules (circa 1995–2002) used screw-terminal wiring bases with fixed I/O counts. Subsequent revisions introduced higher-density configurations and improved diagnostic LED arrays. The series spans discrete input modules (DC and AC), discrete output modules (transistor and relay), mixed I/O bases, and analog I/O modules. Compatibility is rack-slot-specific: TSX DMZ modules are not interchangeable with TSX Momentum (TSX ABI/TSX MOM) or TSX Micro (TSX DMF) families. Migration to Modicon M340 or M580 requires both hardware replacement and Unity Pro / EcoStruxure Control Expert software re-engineering. For facilities unable to undertake full migration, lifecycle extension through certified spare parts procurement remains the standard operational strategy.

TSX DMZ Full Catalog & Functionalities (SKU List)

The following SKUs represent the core TSX DMZ module range. Each entry is a discrete, independently orderable line item within the Schneider Electric TSX Premium I/O catalog.

Discrete Input Modules (DI)

• TSXDMZ28DR: 28-point mixed discrete relay I/O base; 16 DI 24 VDC + 12 DO relay 2A
• TSXDMZ28DTK: 28-point mixed discrete transistor I/O base; 16 DI 24 VDC + 12 DO transistor 0.5A
• TSXDMZ64DTK: 64-point high-density discrete transistor I/O base; 32 DI + 32 DO 24 VDC
• TSXDMZ28DRF: 28-point mixed relay I/O base with fast input capability; 16 DI + 12 DO relay
• TSXDEZ12D2: 12-point discrete input module; 24 VDC sink/source compatible
• TSXDEZ32D2K: 32-point discrete input module; 24 VDC, screw terminal, high-density
• TSXDEZ32D2: 32-point discrete input module; 24 VDC, standard terminal block
• TSXDEZ12A4: 12-point discrete input module; 120 VAC input voltage rated
• TSXDEZ28D2: 28-point discrete input module; 24 VDC, mixed terminal configuration

Discrete Output Modules (DO)

• TSXDSZ08R5: 8-point discrete relay output module; 5A per channel, 250 VAC/30 VDC
• TSXDSZ08T2: 8-point discrete transistor output module; 24 VDC, 0.5A per channel
• TSXDSZ32T2K: 32-point discrete transistor output module; 24 VDC, high-density screw terminal
• TSXDSZ32T2: 32-point discrete transistor output module; 24 VDC, standard terminal block
• TSXDSZ08R4: 8-point relay output module; 4A per channel, 250 VAC rated

Analog I/O Modules (AI/AO)

• TSXAEZ414: 4-channel analog input module; 4–20 mA / 0–10 V, 12-bit resolution
• TSXAEZ802: 8-channel analog input module; voltage/current configurable per channel
• TSXASZ200: 2-channel analog output module; 4–20 mA / 0–10 V, 12-bit DAC
• TSXASZ401: 4-channel analog output module; 4–20 mA, isolated outputs

Communication & Specialty Modules

• TSXSCP114: Serial communication module; RS-232/RS-485, Modbus RTU/ASCII master
• TSXSCP111: Serial communication module; RS-232 only, point-to-point Uni-Telway
• TSXETY110: Ethernet TCP/IP communication module; 10BASE-T, Modbus TCP server

Sourcing Hard-to-Find & Obsolete TSX DMZ Parts

Schneider Electric formally announced the end-of-sale timeline for the TSX Premium platform, with many TSX DMZ module variants now classified as obsolete or available only through authorized aftermarket channels. For process industries operating on 20–30 year asset lifecycles, this creates a structural sourcing gap. DriveKNMS maintains a dedicated inventory of TSX DMZ series modules sourced from decommissioned systems, certified refurbishment programs, and authorized distributor overstock. All units are cataloged by part number, firmware revision where applicable, and physical condition grade. DriveKNMS provides cross-reference support to identify functional equivalents within the TSX DMZ family when an exact part number is no longer available, and can advise on the minimum hardware and software changes required for controlled substitution within an existing TSX Premium rack configuration.

Quality Control for the TSX DMZ Range

TSX DMZ modules incorporate a proprietary backplane bus interface that requires functional validation beyond standard power-on testing. DriveKNMS applies a structured test protocol to all TSX DMZ units prior to shipment. Each module undergoes point-by-point I/O channel verification using a dedicated TSX Premium test rack with a TSX P57 CPU executing a structured diagnostic ladder program. Relay output modules (including the TSXDMZ28DR) are tested for contact resistance, coil actuation voltage threshold, and rated current switching endurance. Analog modules are calibrated against a traceable reference standard and verified across the full input/output range. Communication modules are tested for protocol handshake integrity on both RS-232 and RS-485 physical layers. Modules that fail any test parameter are quarantined and not offered for sale. Test records are retained and available upon request for quality-critical procurement processes.

For TSX DMZ module availability, cross-reference requests, or bulk spare parts quotations:

• Email: [email protected]
• WhatsApp: +86 18359293191
• Web: driveknms.com