IO-Link Masters

The standard architecture of an IO-Link system consists of an IO-Link master and at least one IO-Link device. The IO-Link master module provides the gateway between intelligent IO-Link-capable devices and EtherNet/IP, EtherCAT, OPC UA, MQTT, or PROFINET networks (depending on model). They can also be used with standard field I/O devices to transmit basic sensing/control data to/from a host controller.

When used with IO-Link enabled devices, the master module will gather a wealth of operational data and convert it to an industry standard fieldbus or IIoT protocol for use by PLCs, corporate IT databases, cloud computing systems, etc. Operational data supplied by IO-Link systems could include:

• Proximity sensors that transmit peak environmental variables
• Light sensor signals that include signal degradation warnings
• Flow meter data that contains media temperature
• Cycle counts for each solenoid valve in a pneumatic process

Select master modules also have integrated sensors that continuously provide channel status data (voltage, current, and temperature values) for both the individual ports as well as the entire module. This feature is extremely valuable for both condition monitoring and predictive maintenance.

Easily integrate IO-Link master modules, hubs, and their connected sensors/actuators with AutomationDirect PLCs; tasks libraries available in the Productivity Suite programming software for most master modules, providing even easier integration with Productivity PLCs.

IO-Link Master/Hub Overview