Pepperl+Fuchs: Powerful Signaling – Compact IO-Link Signal Light Cap with Touch Function
July 20, 2026
Whether machine status, process monitoring, or acoustic warning messages—industrial signal technology is a key component of modern automation concepts. With up to nine clearly defined multicolor LED segments, an acoustic signal, and an integrated IO-Link interface, Pepperl+Fuchs signal towers offer a wide range of diagnostic options. The new IO-Link signal light cap comes in a compact design and can be flexibly integrated into any system, while the touch function enables intuitive user interaction—for immediate haptic on-site feedback and fast, clear machine status reporting.
Wide Range of Applications—from Machines to Conveyor Lines
The signal light caps are designed for virtually all types of machines and systems. They visualize machine conditions and provide visual and acoustic indicators for fill levels, malfunctions, or downtime. Typical fields of application include conveyor lines and skid positioning in the automotive industry, or robot grippers in mounting and packaging systems.
Signal Light Cap with Touch Function: Feedback Without Detours
The signal light cap with touch function shows its strengths especially in applications where direct feedback from operating or maintenance personnel is required. Messages can be acknowledged directly at the system via the touch surface, without additional buttons or operating elements. As a result, the signal light cap closes the loop between indication, diagnostics, and operation, becoming an active interface in the field. With a diameter of only 55 mm, it combines a very compact design with powerful signaling and a full-featured IO-Link connection. Users benefit from high data bandwidth and numerous parameterization options, such as flexible adjustment of color and lighting behavior.
Full Transparency All the Way to the Control Level with IO-Link V1.1
The integrated IO-Link interface compliant with specification V1.1 (COM 3 / Class A) enables continuous communication all the way to the control level. All relevant device data is available digitally and can be accessed at any time – from commissioning to maintenance. This allows plant conditions to be reliably recorded, analyzed, and evaluated. This creates clear added value for predictive maintenance as well as efficient and predictable maintenance processes. In addition, it is possible to connect different types of signal light cap to multiple IO-Link masters, significantly simplifying integration into existing plants.
Technical Data in Comparison
| Technical data | Signal light with 6 or 9 segments | Signal light cap with touch function |
|---|---|---|
| Interface | IO-Link V1.1 (COM 3/Class A) | IO-Link V1.1 (COM 3/Class A) |
| Light type | LED Multicolor (>1.000.000 colors adjustable + 8 predefined colors) | LED Multicolor (>1.000.000 colors adjustable + 8 predefined colors) |
| Number of segments | 6/9 | 1 |
| Signal type | Multitone (105 dB / 10 tones) | Multitone (85 dB / 10 tones) |
| Touch function | – | Optional |
| Degree of protection | IP66/IP69K | IP66/IP69K |
| Temperature range | -30 … +60 °C | -20 … +50 °C |
| Dimension (W x H) | 72.5 × 271 mm | 55 × 79 mm |
Highlights of the IO-Link Signal Light Cap
- Compact signal light cap with IO-Link interface and touch function
- Direct acknowledgment of messages on the device – without additional operating elements
- Space-saving design with a 55 m diameter– ideal for confined installations
- IO-Link interface V1.1 (COM 3 / Class A) enables comprehensive device and diagnostic data collection, data storage, and plug-and-play functionality for quick device replacement
- Easy integration into existing systems and IO-Link architectures
- Contributes to higher plant availability and predictive maintenance
