Acromag / Xembedded / Xycom XVME-293 Counter Module with Quadrature

The XVME-293 is a VMEbus-compatible counter module delivering 10 channels of high-speed counting with integrated quadrature input for direction and position feedback in industrial control systems. The module supports up to four simultaneous quadrature transducers and counts at rates to 5 MHz, making it suitable for motion control, encoder feedback, and precision measurement applications requiring VMEbus integration.

Technical Specifications

• 10 counter channels


• Quadrature input support for direction and relative position sensing


• Counting rate: 5 MHz maximum


• Up to four quadrature transducers simultaneously Output Channels


• 5 general-purpose output channels


• 1 frequency output (FOUT) channel


• Utility functions: frequency output, one-shot output, frequency division, pulse generation VMEbus Interface


• Dual 96-pin, 3-row rear connectors


• Full VMEbus backplane compliance (physical and electrical)


• Interrupt generation: 7 programmable levels Environmental


• Operating temperature: 0°C to 65°C (32°F to 149°F)


• Non-operating temperature: -40°C to 85°C (-40°F to 185°F)


• Humidity: 5% to 95% RH, non-condensing


• Mechanical shock (operating): 30g peak, 11 msec duration


• Vibration (operating): 5–2000 Hz, 0.015" peak-to-peak displacement, 2.5g maximum acceleration Physical


• Form factor: B-size, single-width front panel

Key Features

• High-speed counting to 5 MHz supports fast encoder and transducer applications


• Quadrature decoding eliminates external signal processing


• Multi-transducer capability simplifies multi-axis motion feedback


• Seven interrupt levels enable flexible real-time control


• Frequency division and one-shot outputs add timing flexibility

Typical Applications

• Motion control and servo positioning


• Encoder feedback and speed measurement


• Industrial automation counters


• Process control systems requiring precise position data


• Multi-axis machine tool control

Compatibility & Integration Designed for direct integration into VMEbus backplane systems, the XVME-293 pairs with standard VME controllers and I/O modules. Related XVME modules including the XVME-203 share similar architectural capabilities.