Core Information of X20DS4389
X20DS4389 is a high-performance digital signal processor module from B&R’s X20 product series,
designed for precision industrial automation tasks. It integrates 4 dedicated digital input channels, 4
configurable digital I/O channels, and advanced functions including edge detection, edge generation,
oversampling, and NetTime timestamping (125 ns resolution). Compliant with multiple industrial
certifications, it excels in scenarios requiring microsecond-level signal processing, such as high-speed
counting, precise timing control, and rapid event response.
●Model Number: X20DS4389
●Product Series: B&R X20 I/O System
●Core Function: Performs high-precision digital signal processing, including edge detection (with
timestamp), edge generation (down to µs), oversampling (up to 25 µs scan rate), pulse duration
measurement, and differential time measurement. Supports NetTime synchronization for system-wide
precise timing.
●Key Features: 8 total digital channels (4 fixed inputs + 4 configurable I/O), 4 edge
detection/generation units, 4 oversampling channels, 125 ns timestamp resolution, thermal shutdown
protection, and compatibility with 1-wire/2-wire sensor connections.
●Application Scope: Industrial automation (e.g., high-speed manufacturing, precision motion control,
process monitoring), compatible with hazardous locations (Class I, Division 2 / Zone 2) and marine
environments (DNV GL, LR, ABS certified).
Environmental & Operational Traits
Operating Temperature: -25 to 60°C (horizontal mounting); -25 to 50°C (vertical mounting).
Storage/Transport Temperature: -40 to 85°C.
Relative Humidity: 5–95% (non-condensing).
Installation Elevation: ≤2000 m (derate 0.5°C per 100 m above 2000 m).
Pitch: 12.5 +0.2 mm; Mounting Orientation: Horizontal or vertical.
Derating: No derating below 55°C; above 55°C, adjacent modules’ power dissipation ≤1.15 W.
Electrical Parameters
●Digital Inputs (4 fixed channels):
Nominal Voltage: 24 VDC (-15% / +20% tolerance)
Input Current: Approx. 1.3 mA (24 VDC)
Input Circuit: Sink; Input Resistance: 18.4 kΩ
Switching Threshold: Low <5 VDC; High >15 VDC
Input Frequency: 40 kHz
●Configurable Digital I/O (4 channels):
Output Type: Push/Pull/Push-Pull; Sink/Source circuit
Nominal Voltage: 24 VDC (-15% / +20% tolerance)
Nominal Output Current: 0.1 A per channel; Total: 0.4 A
Switching Delay: <2 µs (0→1 and 1→0); Switching Frequency: Max. 24 kHz (resistive load)
Output Protection: Thermal shutdown (overcurrent/short-circuit), inductive load protection
●Power Consumption: Internal I/O power: 1.5 W (no additional actuator dissipation).
●Sensor/Actuator Power Supply: Module-internal, max. 600 mA.
