Schneider TSXMRPC001M SRAM Memory Card

The Schneider Electric TSXMRPC001M is a PCMCIA-format, configurable Static Random-Access Memory (SRAM) application and file memory extension module designed for the Modicon Premium automation platform. Installed directly into the dedicated memory slot of the central processing unit, this hardware component expands the physical memory matrix available for executing complex control code, storing dynamic recipe data logs, and maintaining application archives.

Hardware Specifications

System Compatibility Matrix

The TSXMRPC001M card features explicit internal architecture matching that of the Modicon Premium controller families. It provides dedicated execution support when slotted into the following processing systems:

• TSX57C series processors
• TSX570. through TSX576. modular processors
• TSXPCI572. and TSXPCI573. slot-card controllers

Functional Memory Allocation

• Application Extension Allocation: Allocating memory up toward the maximum 1024 kB allows the host CPU to parse expanded rung logic, structural functional blocks (FBD), and vast structured text programs.
• Data Storage Extension Allocation: Allocating memory toward the upper boundary of 832 kB yields a stable internal register holding zone. This is ideal for managing large lookup tables, operational system metrics, or detailed variable recipe structures.

Frequently Asked Questions

Q: Can the TSXMRPC001M memory card be hot-swapped while the Modicon Premium CPU is actively scanning execution logic?

A: No. Unseating or inserting an SRAM expansion card into Slot 0 while the processor is powered will instantly disrupt the central memory bus lines. This causes an immediate unrecoverable CPU fault, drops all synchronized communication profiles, and can lead to the corruption of active volatile process variables.

Q: How is data retained on the volatile TSXMRPC001M card when panel control power is removed?

A: Volatile SRAM structures depend on backup power to maintain state. When the primary PLC backplane bus drops voltage, data integrity is preserved via an auxiliary backup battery embedded within the main processor housing or via an onboard lithium battery built into the card assembly. This prevents logic erasure during scheduled facility shutdowns.

Field Installation & Maintenance Guidelines

• Physical Insertion and Connector Alignment: Prior to opening the CPU expansion port cover, verify that all power feeds to the TSX RKY subrack assembly are isolated. Align the PCMCIA guide tabs of the 0.168-pound memory card with the internal tracks of Slot 0. Firmly slide the card inward until the low-force multipin connector seats square into the processor board, then snap the lock mechanism closed.
• Anti-Static (ESD) Management: Volatile SRAM components are vulnerable to permanent electrostatic discharge breakdown. Always wear a grounded wrist strap or touch a structural master earth grounding bar before handling the memory card. Store the module inside an anti-static shielding bag when it is uninstalled from the host machine rack.