Acromag / Xembedded / Xycom XVME-542 Analog Input/Output Module

The Acromag/Xembedded/Xycom XVME-542 is a VMEbus-compatible analog input/output module engineered for industrial process control, automation, and high-resolution data acquisition. It integrates 16-bit ADC and 12-bit DAC capabilities in a single form factor, delivering flexible channel configurations and programmable gain control across multiple voltage ranges.

– Technical Specifications

Analog Input
• 16-bit ADC with 0.003% FSR accuracy (single-channel mode) and 0.006% FSR (other modes)
• Configurable as 64 single-ended, 32 differential, or 64 pseudo-differential channels
• Input ranges: 0–5 V, 0–10 V (unipolar); ±5 V, ±10 V (bipolar)
• Software-programmable gains: Range 1 (1, 2, 5, 10), Range 2 (4, 8, 20, 40), Range 3 (10, 20, 50, 100)
• 10 µsec acquisition and conversion time; 16 µsec settling time
• Throughput: 100 kHz (single-channel), 62.5 kHz (autoscanning), 38.5 kHz (other modes)
• Five operating modes: random channel, sequential channel, single-channel, external trigger, autoscanning (8/16/32/64 channels)
• Maximum input voltage: 44 V (powered), 30 V (unpowered)
• Input impedance: 18 MΩ minimum; bias current ±200 pA max; input capacitance 100 pF max
• Operating common mode voltage: −11 V to +13 V

Analog Output
• 12-bit DAC with 8 output channels
• Voltage outputs: 4–20 mA, 0–5 V, 0–10 V, ±2.5 V, ±5 V, ±10 V; current outputs supported
• 5 mA output drive (voltage); transparent or simultaneous update modes
• D/A latch readback capability; analog ground reference for current return

Power & Interface
• 5 V ±5%: 1.8 A typical (voltage outputs full scale), 2.75 A typical (current outputs full scale)
• VMEbus Standard I/O Architecture compliance
• Eight-position addressing switch; three-position interrupt level select switch

– Key Features

• Flexible input channel multiplexing across single-ended, differential, and pseudo-differential topologies
• Programmable gain control enabling signal conditioning across three independent ranges
• Simultaneous analog output update capability for synchronized multi-channel control
• External trigger support for time-synchronized acquisition

– Typical Applications

Process control systems, automated test equipment, multi-channel sensor interfacing, industrial data logging, and control systems requiring high-resolution analog I/O in VMEbus environments.

– Compatibility & Integration

Fully compatible with VMEbus Standard I/O Architecture, ensuring consistent programming across Xycom/Xembedded module families. Supports both supervisory and non-privileged access modes with configurable short I/O or standard address space selection.