Product Details

The XYCOM XVME-113, PN 74113-001, is a discontinued double-height 6U VMEbus RAM/ROM memory module, designed for XYCOM legacy VME control racks and embedded industrial processor systems. It is equipped with twenty-four 32-pin JEDEC memory sockets, divided into two independent configurable memory banks, supporting flexible installation of RAM, EPROM, Flash and EEPROM chips. The maximum capacity reaches 12MB RAM, 24MB EPROM, 12MB EEPROM or 12MB Flash, and it features a full 32-bit VMEbus slave interface, compatible with 8-bit,16-bit and 32-bit VME CPU modules. This module integrates a built-in real-time clock RTC and battery backup circuit. When the main VME power supply fails, the backup battery continuously supplies power for CMOS RAM and RTC, preserving critical control recipes, process parameters, runtime data and system time information to avoid data loss and time reset after power outage. It also includes power-down write protection circuitry, which blocks invalid write operations when voltage drops below the threshold to prevent memory corruption. The board supports read-modify-write cycles and unaligned data transfers, adapting to real-time control data access requirements. Users can configure base address, address modifier, memory device type and access timing via on-board jumpers and DIP switches to avoid resource conflicts with other VME modules in the same chassis. The front edge is fitted with LED indicators for power status, memory access activity and low battery warning, which help maintenance technicians quickly locate power faults, battery depletion and bus handshake errors during commissioning and routine inspection. The PCB adopts industrial-grade electronic components and EMC noise suppression design, resisting electromagnetic interference from inverters and servo drives, as well as vibration, dust and temperature fluctuation in factory sites. This legacy high-capacity VME memory module is mainly supplied as spare replacement and upgrade parts for existing XYCOM VME automation systems. Users need to confirm VME chassis compatibility, bus address mapping and battery health status before installation. A conformal coated version is optional for high humidity, dusty and corrosive industrial environments. This model is widely used in CNC control racks, DCS process monitoring stations, test measurement platforms and old VME-based automation system retrofit projects.

This vme ram rom memory module adopts standard 6U double-height VME rack mount structure. It draws power from the VME backplane. LED indicators display power status, memory bank activity and low battery alarm for convenient on-site inspection. The operating temperature range is 0°C to 50°C, storage temperature ranges from -40°C to 85°C, relative humidity 5% to 95% non-condensing. It complies with industrial shock, vibration and EMC standards and has CE certifications. It supports memory bank and address configuration backup for fast recovery after hardware replacement.

This XYCOM XVME-113 VME memory module is widely applied in legacy VME control racks and industrial automation upgrade projects. It provides high-capacity flexible storage, battery-backed data retention and real-time clock function for the VME master control system. As a reliable discontinued spare part, the XYCOM XVME-113 retains original VME bus timing and signal compatibility, and effectively reduces the renovation cost of legacy industrial control system maintenance.