X20SLX842 B & R Automation
Wake Industrial LLC is not an authorized distributor of this product.
- Straightforward Pricing: No Rush Fees, No Credit Card Fees
The B & R Automation X20SLX842 is part of the X20 Fieldbus Input Output Modules series and provides 4 pulse outputs at 24 VDC. It features 8 safe type A inputs and supports 4 safe motion axes, with safe type A and B2 outputs rated at 24 VDC. The module can support up to 10 safe nodes.
To contact sales for pricing and lead time:
Payment Methods
Shipping Methods
Our Credentials
Product Description:
The X20SLX842 is a safety-rated I/O slice from B&R Automation in the X20 Fieldbus Input Output Modules series. Intended for distributed machine architectures, the device monitors field sensors and actuators while exchanging data with a safety controller over a deterministic real-time bus. By combining safe inputs, safe outputs, and localized pulse generation in one housing, the module helps reduce cabinet wiring and supports rapid shutdown functions in industrial automation. This arrangement allows safety-related signal handling to stay close to the machine section where switches, guards, and other devices are installed.
Four synchronized terminal drivers supply a 24 VDC pulse output voltage that can be switched through 4 pulse outputs for encoder reference or test pulses. The module provides 8 Type A inputs for devices such as e-stop buttons and light curtains, and individual load switching is handled by 4 Type A outputs that are internally checked against short-circuit and cross-fault conditions. The continuous current capability of those outputs is 24 VDC, 3 A Type A output rating, and fault detection to shutdown remains below the 500 µs Type A OSSD limit to support fast removal of hazardous motion. This combination allows one slice to handle both sensor monitoring and output switching without moving those functions to separate modules.
For axis-related protection, the slice can supervise 4 Safe Motion axes, applying safe torque-off or safe stop commands without routing signals through the main PLC. Network capacity reaches 10 safe nodes, allowing several X20 safety slices to share data on the same segment without exceeding diagnostic limits. Actuator diversity is extended by 2 Type B2 outputs intended for low-current valves or lamp indicators. Their maximum load is 24 VDC, 50 mA Type B2 output rating, and their OSSD response also stays below 500 µs. This setup supports applications that need both higher-current safe outputs and lower-current signaling points within the same safety module.
