Schneider Electric TSXMRPC001M Modicon Premium SRAM Memory Card

Configured for volatile data retention and volatile register expansion within Modicon Premium controller architectures, the Schneider Electric TSXMRPC001M (TSXMRPC001M SRAM Memory Card) provides direct physical/electrical execution. This solid-state hardware extension card inserts into the dedicated memory slot of a Modicon Premium processor to scale local allocation tables. By adding zero-latency static random-access memory directly to the internal CPU memory bus, this component expands the execution boundaries for active application code, recipe data blocks, and runtime system variables without creating bus transfer bottlenecks.

Hardware Specifications

Memory Architecture Allocation and Internal Bus Sync

This static memory module synchronizes directly with the host processor clock line to handle high-speed read and write cycles without inserting wait states into the program execution path. The hardware supports flexible application memory allocation limits, enabling engineers to partition the 832 kB array between active Boolean application code registers and unlocated data storage variables. Internal address decoding logic enforces secure parity bit checks across every data byte, detecting word corruption caused by localized electromagnetic field noise. This tightly coupled bus integration allows the CPU to process complex control strategies, track large data arrays, and run multi-tasking structures at maximum execution velocity.

Frequently Asked Questions

Q: What happens to the stored data inside the TSXMRPC001M if the module is removed from the CPU slot while unpowered?

A: Because this card utilizes volatile SRAM architecture, it relies on the host CPU module internal lithium battery via the slot interface pins to maintain voltage bias. Removing the card from its slot while the rack is powered down interrupts this bias, resulting in the immediate erasure of all compiled application code and stored variables.

Q: Is this memory card compatible with modern Modicon M580 ePAC systems?

A: No. The TSXMRPC001M uses a legacy PCMCIA physical form factor and parallel bus structure designed exclusively for Modicon Premium and TSX Micro processors. Modern Modicon M580 platforms utilize embedded flash memory and standard SD cards for non-volatile storage, requiring a complete system migration.

Q: Can the application memory allocation ranges be modified on-the-fly during CPU runtime?

A: No. Reallocating the memory partitions between code and data spaces shifts the physical base addresses within the CPU memory map. This change requires putting the host processor into a STOP state, modifying the configuration parameters in the programming software, and executing a full application download.

Field Installation Guidelines

• Static Discharge Protection: Always wear a properly grounded wrist strap (ESD protection) before handling or inserting the memory card to prevent high-voltage electrostatic discharge from puncturing the internal CMOS gates.
• Insertion Orientation: Inspect the guide grooves on the sides of the card housing, ensuring the module is aligned correctly before sliding it firmly into the processor slot until the mechanical ejector button clicks out.
• Battery Verification: Verify that the host CPU module battery status indicator is clear (no battery fault) before downloading programs to the SRAM card, ensuring long-term data retention during planned power outages.
• Environment Maintenance: Keep the protective slot dust cover closed on the CPU module when no card is present, preventing conductive industrial particulates from fouling the high-density interface pins.