Mitsubishi SRAM Memory Card – Q1MEM-1MS

The Mitsubishi Q1MEM-1MS is a high-reliability SRAM memory card designed for use with Mitsubishi Electric's MELSEC-Q series programmable logic controllers (PLCs). This memory card provides a storage capacity of 1 megabyte (1 MB), utilizing static random-access memory (SRAM) technology to offer fast read/write speeds and low power consumption.

As an SRAM-based module, the Q1MEM-1MS retains data as long as power is supplied, and it typically includes a built-in lithium battery backup to preserve stored data during power outages or when the card is removed from the PLC system. This makes it suitable for applications requiring reliable data retention, such as recipe storage, process parameters, alarm histories, and backup of ladder programs or device comments.

The Q1MEM-1MS is hot-swappable and compatible with various MELSEC-Q CPU modules, allowing users to easily expand system memory or transfer program data between controllers. Its compact, rugged design ensures stable operation in industrial environments.

Key Specifications:

●Product Type: SRAM memory card

●Memory Capacity: 1 MB

●Battery Backup: Yes (lithium battery)

●Compatibility: MELSEC-Q series PLCs

●Applications: Program storage, data logging, parameter backup, recipe management