B&R X20DC2396 DC digital input slice module

Model Number: X20DC2396

Product Type: Digital Counter Module

Core Function: Supports 2 ABR incremental encoders (24 V signal) for linear/angular position 

detection; monitors encoder power supply voltage; provides 4x signal evaluation and homing 

functionality.

Key Features: 100 kHz max input frequency, 16/32-bit counter resolution, sink input type, bus 

isolation (500 V eff), diagnostic LEDs and software status monitoring, and hazardous location 

compliance.

Required Accessories: X20BM11/X20BM15 bus module, X20TB12 12-pin terminal block (ordered 

separately).

Application Scope: Industrial automation systems requiring position/speed detection (e.g., rotating 

machinery, linear actuators), compatible with B&R X20 I/O system.

Number of Encoder Inputs: 2 (for ABR incremental encoders).

Encoder Supply Voltage: 24 VDC (asymmetrical), short-circuit and overload proof.

Input Signal Type: 24 VDC sink inputs; 3-wire connections.

Max Input Frequency: 100 kHz.

Response Time: ≤2 µs.

Input Resistance: 7.19 kΩ.

Logic Levels: Low <5 VDC; High >15 VDC.

Reference Enable Switch: Supports home position enable.

Counter Resolution: 16-bit (INT: -32,768 to 32,767) or 32-bit (DINT: -2,147,483,648 to 

2,147,483,647).

Homing Modes: Single-shot homing, continuous homing.

Homing Trigger: Configurable for rising/falling edge of reference pulse.

Encoder Supply Current: Approx. 3.3 mA per encoder.

Module Power Consumption: 0.01 W (bus) + 1.5 W (encoder supply).