XYCOM 70100-001 XVME-101 Industrial VME Bus Memory Module - Detailed Product Description
XYCOM 70100-001 XVME-101 Industrial VME Bus Memory Module - Detailed Product Description
I. Product Overview
XYCOM 70100-001 XVME-101 is a VME bus-compatible memory module under the XVME series of XYCOM. The model number 70100-001 represents the part number, while XVME-101 represents the product series model. It belongs to a high-reliability storage expansion unit in the industrial control field. This module adopts a standard 6U single-height VME bus architecture, specifically designed for industrial automation, process control, and embedded systems, providing large-capacity, power-off protection, and wide-temperature operation memory expansion capabilities. It complies with the VME64 bus standard and can be directly inserted into the standard VME chassis backplane, serving as a system memory expansion, program storage, data cache, or critical parameter power-off preservation unit. It supports 24-hour uninterrupted continuous operation and is a mainstream model for core storage expansion in industrial VME systems.
II. Product Naming and Positioning
70100-001: The official material number of XYCOM, used to uniquely identify the specifications and version of this hardware module;
XVME: The abbreviation of Xycom VME bus, representing that the product is designed based on the VME industrial bus;
101: Belonging to the XVME-100 sub-series, positioned as an enhanced EEPROM/CMOS RAM memory module, different from the basic version XVME-100, with the power-off protection circuit and storage capacity optimized out;
Core Positioning: An industrial-grade VME bus non-volatile memory expansion module, targeting industrial control scenarios with strict requirements for data security, power-off preservation, and wide-temperature stability, replacing traditional ordinary memory modules, providing higher reliability and longer service life, compatible with industrial controllers, embedded systems, and data acquisition devices based on the VME bus architecture.
III. Core Functional Characteristics
1. Large-capacity Hybrid Storage Architecture, Flexible Adaptation to Industrial Storage Requirements
Integrated CMOS RAM and EEPROM dual storage media, supporting various capacity configurations: CMOS RAM supports a maximum of 1MB (1×8bit), configurable as 256KB/512KB/1MB; EEPROM supports a maximum of 256KB, used for permanent storage of critical data after power-off. It also supports EPROM/mask ROM expansion, which can solidify system programs, firmware, or fixed parameters, without the need for re-loading each time the power is turned on, suitable for scenarios such as program storage, data caching, and parameter backup, with the storage capacity configurable through jumpers on the board, compatible with different system memory planning.
2. On-board Battery Power-off Protection, Zero Data Loss
Built-in replaceable lithium manganese battery backup circuit, specifically for CMOS RAM power-off endurance, battery life ≥ 10 years. During normal operation, it is charged by the 5V power supply of the VME bus, and automatically switches to battery power supply in case of power failure, ensuring the permanent preservation of data in the RAM without loss. EEPROM does not require a battery, with a million write cycles, data retention time ≥ 20 years, capable of long-term storage of critical process parameters, formulas, calibration data, avoiding data loss due to power failure or system restart, ensuring the continuity and data integrity of industrial production.
3. Standard VME64 Bus Compatibility, Plug-and-Play Quick Integration
Using VME64 standard bus interface, supporting A16/A24/A32 address space addressing, data width 16/32 bits selectable, maximum bus transmission rate up to 40MB/s, compatible with all standard 6U VME chassis and backplanes, no need for additional drivers or configuration, insertion into the slot can be recognized by the system automatically, completing memory mapping and resource allocation. Supports VME bus interrupt response, configurable as system memory, cache, or dedicated data storage area, compatible with all XYCOM VME controllers and third-party VME bus devices, with strong compatibility and convenient integration, significantly reducing system upgrade and expansion costs.
4. Industrial-grade Wide Temperature Anti-interference, Compatible with Harsh Environments
Operating temperature range -10℃～+60℃, storage temperature range -40℃～+85℃, using industrial-grade wide-temperature storage chips and components, capable of withstanding temperature fluctuations, humidity, and dust environments. The motherboard adopts multi-layer shielding wiring design, built-in power filter and surge suppression circuits, effectively isolating electromagnetic interference generated by frequency converters, motors, and high-voltage equipment, avoiding data confusion, read/write errors, or bus communication abnormalities. The module has passed CE and UL certifications, with anti-vibration and anti-shock design. It can withstand continuous vibration in industrial environments and has an average fault-free time (MTBF) of over 80,000 hours. It is suitable for 24-hour uninterrupted operation conditions.
5. Front panel status indicator lights, facilitating operation and fault diagnosis
The front panel integrates four high-brightness LED indicator lights for power (PWR), battery (BATT), read/write (RD/WR), and fault (FAULT), which display the module's operating status in real time: the PWR light is always on indicating normal bus power supply; the BATT light is on indicating insufficient or failed battery power; the RD/WR light flashes indicating data reading and writing; the FAULT light is on indicating storage errors, bus abnormalities, or battery failures. Without the need for professional tools, the indicator lights can quickly locate faults, simplify on-site operation procedures, reduce fault troubleshooting time, and enhance system maintainability.
6. Robust mechanical structure, stable and reliable long-term operation
It adopts a 6U standard single high VME board card size (160mm×233.35mm), with a reinforced high-strength metal panel, and the PCB board uses flame-retardant materials, with a surface coated with moisture-proof, anti-corrosion coating. It is dust-proof, anti-corrosive, and resistant to aging. The connector edge of the board card adopts a gold-plated process, with a plug-in and unplugging life of ≥1000 times, stable contact, and no contact problems over a long period. The module supports various installation methods including vertical and horizontal, and is compatible with various standard VME chassis, ensuring stable installation and good heat dissipation, and guaranteeing long-term operational stability.
4. Overall hardware specifications
Storage system
CMOS RAM: Maximum 1MB (configurable 256KB/512KB/1MB), onboard battery power protection;
EEPROM: Maximum 256KB, million write cycles, data retention ≥ 20 years;
Compatible expansion: Supports EPROM / mask ROM firmware;
Read/write speed: RAM read/write ≤ 100ns, EEPROM write ≤ 10ms / byte.
Bus interface
Bus standard: VME64 (compatible with VME32);
Address space: A16/A24/A32 selectable;
Data width: 16/32 bits;
Transmission rate: Maximum 40MB/s;
Connector: Standard VME 64-pin gold-plated connector.
Electrical characteristics
Power supply: VME bus +5V ±5%, power consumption ≤ 5W;
Backup battery: 3.6V lithium manganese battery, life ≥ 10 years, replaceable;
Protection circuit: Overcurrent, overvoltage, reverse connection protection, surge suppression.
Environmental parameters
Operating temperature: -10℃～+60℃;
Storage temperature: -40℃～+85℃;
Humidity: 5%～95% (no condensation);
Anti-vibration: 5g (10～1000Hz);
Anti-shock: 10g (11ms half-sine wave).
Mechanical specifications
Size: 6U single high (160mm×233.35mm);
Panel: High-strength metal, flame-retardant PCB;
Weight: Approximately 0.8kg;
Installation: Standard VME chassis slot, supports vertical / horizontal installation.
Five, mainstream application scenarios
Industrial automation control systems
Used for PLC, DCS, embedded controllers in VME bus architecture, to expand system memory, store control programs, process formulas, calibration parameters, and automatically save power failure, ensuring continuous operation of the production line, suitable for process control scenarios in chemical, metallurgy, power, water treatment, etc.
Embedded data acquisition and monitoring equipment As a data cache unit, it real-time stores sensor data, equipment operation status, and alarm information, supporting high-speed reading and writing as well as power-off backup. It is compatible with industrial data collectors, remote monitoring terminals, and intelligent instruments, ensuring data integrity and security.
Upgrading and expanding the old VME system
Replace the old memory modules with insufficient capacity or faulty ones, compatible with the original VME chassis and system. No need for re-development or hardware modification. Simply plug and upgrade to expand storage capacity, improve data reliability, and reduce upgrade costs and downtime.
Military and special industrial equipment
Adapted for military, aerospace, rail transit and other special industrial scenarios. With wide temperature range, anti-vibration, and high reliability design, it can withstand extreme environments. It stores critical control data and programs to ensure the stable operation of the equipment.
Six. Fault Diagnosis and Daily Maintenance
Daily maintenance
After regular power-off, use a dry soft cloth to wipe the surface of the module and connectors, remove dust and oil stains, and avoid using liquid cleaners; check the backup battery once every 5 years, replace the battery when the power is insufficient in time, ensure power-off when replacing to avoid data loss; regularly check the VME chassis slots and connectors, clean the oxide layer to ensure good contact; avoid keeping the module in a high-temperature, high-humidity, and strong vibration environment to extend the service life. Common faults
PWR indicator not lit: Check if the +5V power supply of the VME chassis is normal, if the slots are loose, and if the connectors are oxidized; Investigate the internal power circuit faults of the module.
BATT indicator constantly lit: The backup battery has run out of power or failed. Replace with a new battery; Check if the battery connection lines are loose or have poor contact.
FAULT indicator lit: Storage chips are damaged or there are read/write errors; Bus address conflicts or communication abnormalities; Battery failure causes data loss, reconfigure parameters or replace the storage chip.
Data loss: Battery failure or expiration of lifespan, replace the battery; Read/write operations are abnormal or subject to electromagnetic interference, check grounding and shielding; Storage chips are aging, replace the module.
Bus identification failure: Connector is oxidized or has poor contact, clean the gold-plated contacts; Incorrect address jumper configuration, reconfigure the address; Module hardware failure, replace the module.
VII. Core Product Advantages
XYCOM 70100-001 XVME-101 is an industrial-grade VME bus non-volatile memory module, with a hybrid storage architecture that balances large capacity and power-off safety. The onboard long-lasting battery ensures zero data loss. It is compatible with standard VME64 bus and supports plug-and-play. It is suitable for harsh environments with wide temperature range and anti-interference capabilities. The front panel indicator lights simplify operation and maintenance. The sturdy structure ensures long-term stability and reliability. As the core storage expansion unit of the VME system, it perfectly fits scenarios such as industrial automation, embedded systems, and upgrading of outdated equipment, and is an ideal memory expansion choice for industrial sites with strict requirements for data security and stability.