IO-Link modules
Convert standard digital and analog signals into smart IO-Link data with a single M12 cable.
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What is an IO-Link Module?
While an IO-Link Master acts as the gateway, IO-Link Modules (or I/O Hubs) act as collectors. They allow you to connect “dumb” devices—like standard binary sensors, pushbuttons, and lights—into your IO-Link network. This transforms a cluster of traditional wiring into a single, streamlined digital stream.
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Why Choose IO-Link Modules?
Massive Wiring Savings: Replace bulky 16-core cables and expensive terminal boxes with one standard 3-wire M12 cable.
Decentralised Control: Mount modules directly on the machine (IP67) to reduce cable runs back to the control cabinet.
Universal Ports: Many modules feature “Pin 2/Pin 4” configurability, allowing you to use one port for two digital inputs or as a diagnostic channel.
Analog-to-Digital Conversion: Convert 4-20mA or 0-10V analog signals into IO-Link data right at the source, eliminating EMI/RFI interference over long distances.
Top Performance Modules
| Product Type | Top Recommendation | Key Feature |
|---|---|---|
| Digital I/O Hub | Balluff BNI IOL-302 | 16 Configurable Inputs/Outputs in a rugged metal housing. |
| Analog Converter | ifm DP2200 | Converts any 4-20mA analog sensor into a smart IO-Link device. |
| Valve Plug | Murrelektronik Impact67 | Direct connection for solenoid valves to the IO-Link Master. |
Technical Comparison
| Feature | Digital Hubs | Analog Converters |
|---|---|---|
| Input Type | PNP / NPN / Binary | 4-20mA / 0-10V / RTD |
| Port Style | M12 or M8 | M12 (Single or Dual) |
| Protection | IP67 (Washdown) | IP65 / IP67 / IP69K |
| Diagnostics | Short circuit & Overload | Signal out-of-range & Wire break |
Application Spotlight: The "One Cable" Machine
- The Master connects to the PLC (PROFINET/EtherNet).
- The Hubs collect data from dozens of simple limit switches and pilot lights.
- The Result: A clean, “tangle-free” machine with full remote visibility into every single sensor.
IFM IO-Link modules
- For the simple connection of binary sensors to any IO-Link master
- Clearly visible LEDs for displaying operation, switching status and error
- Robust M12 connectors for connecting sensors and actuators
- Data and energy transmission also possible with unscreened connection cable
- Robust design with full potting for use in harsh industrial environments
Input modules for IO-Link devices
Up to eight conventional sensors with switching outputs can be connected to the field modules with IO-Link. The signals are transmitted to any desired IO-Link master / PLC via one unscreened M12 connection cable. This considerably reduces wiring complexity since conventional parallel wiring of each sensor or actuator to the controller is no longer necessary. It also saves the user a great number of terminals, splitter boxes, input/output cards and cable lines. As opposed to bus systems IO-Link does not require any configuration or addressing. This simplifies the set-up. Excellent electromagnetic stability, a wide temperature range, a high protection rating and a robust housing qualify the device for use in harsh industrial environments.
- IO-Link - M12 modules
- IO-Link - M8 modules
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- IO-Link - other modules