Banner XS26-2DE 85064 Expandable Safety Controller

The Banner XS26-2DE (part number 85064) is a versatile and high‑performance safety controller belonging to the XS26 expandable series. Designed for industrial machine safety applications, the XS26-2DE provides flexible safety I/O and is certified to meet the highest safety integrity levels, including SIL 3 (IEC 61508) and PL e / Category 4 (ISO 13849‑1). With 26 inputs and 2 pairs of solid‑state safety outputs, this controller monitors a wide range of safety devices such as emergency stop buttons, light curtains, safety gates, two‑hand controls, and pressure‑sensitive mats. It is a scalable solution that can expand with up to eight additional I/O modules, making it suitable for large‑scale machinery with multiple hazard points.

Functional Description

The XS26-2DE acts as a central logic solver for safety functions, replacing multiple safety relays with a single programmable device. It monitors the status of connected safety devices through its 26 input channels. The 8 convertible I/Os can be used as either safety inputs or non‑safety status outputs, enabling efficient use of terminals for signaling machine states. The safety outputs are dual‑channel solid‑state PNP outputs, each pair rated for 0.5 A, and are tested for cross‑circuit detection and short‑circuit protection.

Programming and configuration are performed using Banner’s free, intuitive PC‑based software. The software provides pre‑configured safety function blocks (e.g., emergency stop, light curtain, gate monitoring) that reduce programming time. A built‑in display on the XS26-2DE shows real‑time I/O status, diagnostic messages, and fault history, aiding in commissioning and troubleshooting. When connected to an industrial network via Ethernet, the controller supports live monitoring and remote configuration.

Expandability and Communication

A key advantage of the XS26-2DE is its expandability. Up to eight I/O expansion modules can be attached, including safety input modules (8 or 16 channels), solid‑state safety output modules (2 or 4 channels), and safety relay output modules (1 or 2 channels). This modular approach allows the controller to grow with the machine’s requirements. For network integration, the XS26-2DE supports multiple protocols, including EtherNet/IP, Modbus/TCP, PROFINET, and PCCC. It can also exchange data with SCADA systems, PLCs, and HMIs, enabling advanced diagnostics and data logging. Up to 256 virtual status outputs are available when using Ethernet‑enabled models.

Safety Compliance and Diagnostics

The XS26-2DE is certified by TÜV SÜD and meets the requirements of IEC 61508 (SIL 3), IEC 62061 (SIL CL 3), and ISO 13849‑1 (PL e, Category 4). The built‑in display provides local diagnostics, showing which inputs are active and which outputs are energized. For larger systems, the controller supports in‑series diagnostics (ISD), allowing each connected safety device to report its status and performance data to the controller, which can then be displayed on an HMI or PC. Error logs are stored in non‑volatile memory for later analysis.

Typical Applications

The XS26-2DE is widely used in packaging machinery, palletizers, robotic cells, conveyor systems, printing presses, and woodworking equipment. Its expandable design makes it particularly suitable for large assembly lines with multiple hazardous access points, where a single safety controller can manage dozens of safety devices across a distributed footprint.

Installation and Wiring Overview

Mount the controller on a standard 35 mm DIN rail using the integral clips. Connect the 24 V DC supply (20–28 V) to the power terminals, observing reverse polarity protection. The I/O connections use removable screw terminal blocks, with each channel labeled on the housing. For dual‑channel safety inputs, use separate wiring paths for each channel to maintain fault detection. Outputs are solid‑state PNP; wire the load between the output terminal and the common ground. Use the included USB port or Ethernet connection for configuration. After programming, verify the safety function by testing each input device in sequence.

Conclusion

The Banner XS26-2DE 85064 expandable safety controller offers a scalable, high‑integrity safety control solution with integrated Ethernet, built‑in display, and a flexible I/O architecture, meeting the most stringent global safety standards.