Product Details

The XYCOM XVME-201, PN 70201-002, is a discontinued single-height 3U VMEbus digital I/O module, designed for XYCOM legacy VME control racks and industrial discrete automation systems. It provides 48 TTL-level digital I/O channels without built-in interrupt function, which distinguishes it from the interrupt-supported XVME-200 model. This module works as the signal interface between the VME master CPU and field TTL sensors, proximity switches, indicator lamps and simple logic actuators, responsible for collecting digital input status and output switching control signals for routine machine logic control. It follows standard VMEbus slave communication protocol for bidirectional data read and write, and it does not support hardware interrupt triggering on signal state change. The onboard circuits include TTL signal buffers, noise filtering and transient suppression components to reduce electromagnetic interference from inverters and servo drives on production floors, ensuring stable signal transmission. Users can configure base address and port direction mode via on-board jumpers and DIP switches to avoid resource conflicts with other VME modules installed in the same chassis. The front edge is fitted with LED indicators for power status, bus access and port activity, helping maintenance technicians quickly locate wiring faults and bus handshake errors during commissioning and routine inspection. The PCB adopts industrial-grade electronic components and reliable EMC protection design, capable of resisting vibration, dust and temperature fluctuation in machining workshops and test measurement stations. This legacy TTL digital I/O module is mainly supplied as spare replacement parts for existing XYCOM VME automation systems. Users need to confirm VME chassis compatibility, bus address allocation and TTL signal wiring requirements before installation. A conformal coated version is optional for high humidity, dusty industrial sites. This model is widely used in CNC machine control racks, test bench signal switching, packaging machinery and old VME discrete control system retrofit projects.

This vme digital io module adopts standard 3U single-height VME rack mount structure. It draws power from the VME backplane. LED indicators display power status, bus activity and port signal 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 port direction and address configuration backup for fast recovery after hardware replacement.

This XYCOM XVME-201 digital I/O module is widely applied in legacy VME control racks and industrial automation upgrade projects. It delivers reliable TTL discrete signal acquisition and output control for the VME master control system. As a reliable discontinued spare part, the XYCOM XVME-201 retains original VME bus timing and signal compatibility, and effectively reduces the renovation cost of legacy industrial control system maintenance.