Product Details

The XYCOM 70203-001 XVME-203 is a discontinued 6U VMEbus counter and timer I/O module, designed for legacy VME control systems, motion monitoring and pulse signal acquisition applications. It is equipped with high-speed counter chips, supporting 16-bit counting channels up to 5MHz input frequency, and provides quadrature encoder interfaces to detect rotation direction, speed and position for encoders. This module supports multiple counting modes including up counting, down counting and bidirectional counting, which can collect pulse signals from encoders, proximity sensors and flow meters. It integrates interrupt control logic to generate VME interrupts when preset count values are reached, helping the host CPU respond to motion events in real time. The board follows standard VME bus specification, supporting A16 address space. Users can configure base address, interrupt level and counting parameters via on-board DIP switches and jumpers to avoid resource conflicts on the VME backplane. The circuit adopts industrial-grade filtering and EMC protection design to suppress electrical noise and transient interference from field wiring, ensuring stable pulse acquisition under vibration and electromagnetic interference in factory environments. The front panel is fitted with LED indicators to show power status, pulse input activity and interrupt flag, allowing maintenance technicians to quickly check signal status and diagnose wiring faults or configuration errors during commissioning and routine inspection. This legacy counter module is mainly supplied as spare replacement parts for existing XYCOM VME automation systems. Users need to confirm encoder signal type, address mapping and interrupt setup before installation. A conformal coated version is optional for high humidity, dusty industrial sites. This model is widely used in production line speed monitoring, material length measurement, CNC motion control racks, chemical process skids and old VME-based automation retrofit projects.

This VME counter I/O card adopts standard 6U VME board structure. It draws 5VDC power supply from VME backplane. LED indicators display power status, pulse activity and interrupt status 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 counter preset and interrupt configuration backup for fast recovery after hardware replacement.

This XYCOM 70203-001 XVME-203 counter module is widely applied in legacy VME motion control racks and industrial measurement system upgrade projects. It provides reliable high-speed pulse counting and encoder position feedback for VME host controllers. As a reliable discontinued VME spare part, the XYCOM 70203-001 XVME-203 retains original bus timing and counting logic, and effectively reduces the renovation cost of legacy industrial control system maintenance.