TSXP57104M | Schneider Electric | Unity Processor Module

Overview

The TSXP57104M Unity Processor Module from Schneider Electric is a central processing unit developed for the Modicon Premium automation platform. It is intended for medium to large-scale PLC architectures where deterministic performance, multi-rack expansion, and structured task execution are required. Although this processor has been phased out of active production, Schneider Electric continues official service and lifecycle support until 2026, making it suitable for system maintenance, upgrades, and long-term spare part strategies.

Designed around the Unity architecture, the processor integrates tightly with Unity Pro engineering software and supports both discrete and analog I/O processing across distributed rack configurations.

Key Functional Characteristics

The TSXP57104M supports flexible rack layouts, allowing either two 12-slot racks or up to four reduced-slot racks depending on system topology. It can manage a substantial I/O footprint while maintaining predictable scan times and task scheduling.

Its internal memory architecture supports program execution, data handling, and function block processing, with optional PCMCIA expansion enabling additional data storage. A built-in RS485 serial interface allows local communication without the need for an external module.

Memory and Processing Architecture

Internally, the processor provides 96 kB of RAM usable for program and data storage. When equipped with a PCMCIA memory card, total usable memory increases, supporting larger applications and extended data retention.

Execution performance is optimized for Boolean logic, fixed-point arithmetic, and floating-point calculations, with instruction execution times varying based on memory configuration. The processor supports structured applications with multiple event-driven tasks alongside master and fast tasks.

Communication and Integration

The TSXP57104M includes a non-isolated RS485 serial interface via a mini-DIN connector, operating at 19.2 kbit/s. It supports communication module expansion through the Modicon Premium backplane, enabling integration with fieldbus and network modules as required.

Local LED indicators provide immediate visual diagnostics for processor state, I/O or configuration faults, system errors, and terminal communication activity.

Technical Specifications

Electrical Characteristics

• Supply voltage via rack backplane: 5 V DC
• Current consumption: 850 mA
• Net Weight: 0.84 lbs

Memory Configuration

• Internal RAM (no PCMCIA): 96 kB program and data
• Internal RAM with PCMCIA: up to 224 kB program memory
• PCMCIA card support: up to 256 kB additional data storage

System Capacity

• Supported racks:
  • 2 racks with 12 slots each
  • 4 racks with 4, 6, or 8 slots
• Total slot capacity: 16, 24, or 32 slots
• Discrete I/O capacity: 512 points
• Analog I/O capacity: 24 channels
• Application-specific channels: 8

Task and Performance Data

• Supported tasks:
  • 1 master task
  • 1 fast task
  • Up to 32 event tasks
• Boolean instruction execution time:
  • 0.19 µs without PCMCIA
  • 0.25 µs with PCMCIA
• Floating-point operations: 1.75 to 2.6 µs

Environmental Ratings

• Operating temperature: 0 to 60 °C
• Storage temperature: -25 to 70 °C
• Relative humidity: up to 95% non-condensing
• Maximum altitude: 2000 m
• Ingress protection: IP20
• Pollution degree: 2

Compliance and Certifications

The TSXP57104M meets IEC 61131-2 requirements and carries CE marking. It is certified for use in Class I Division 2 hazardous locations and approved by multiple marine and industrial certification bodies including ABS, BV, DNV, GL, LR, and RINA.

Typical Applications

This processor is commonly deployed in:

• Multi-rack Modicon Premium PLC systems
• Process automation and continuous control
• Manufacturing lines requiring deterministic task execution
• Legacy system expansions and replacements

Frequently Asked Questions

Is the TSXP57104M still supported by Schneider Electric? Yes. While discontinued for new production, Schneider Electric provides official service and support through 2026.

Which software is required to program this processor? Unity Pro is required for configuration, programming, diagnostics, and maintenance.

Can the memory be expanded? Yes. A PCMCIA card can be installed to expand available program and data memory.

Does it support distributed I/O? Yes. When used with compatible Modicon Premium communication modules, the processor can manage distributed I/O architectures.