What you'll learn
Connect a three-wire IO-Link sensor to Port 1 of an IO-Link master and link the master to the PLC network. L+ and L− power the field device; C/Q carries bidirectional point-to-point process data, parameters and diagnostics.
Lab time: ~18 minutes.
Lesson briefing
IO-Link Master and Smart Sensor
Connect a three-wire IO-Link sensor to Port 1 of an IO-Link master and link the master to the PLC network. L+ and L− power the field device; C/Q carries bidirectional point-to-point process data, parameters and diagnostics.
Why it is wired this way
IO-Link is not an Ethernet fieldbus at the sensor. The unshielded three-wire device lead runs only to the master. The master translates IO-Link data into the plant Ethernet protocol and must be separately powered and earthed.
Commissioning standard
Before energising, prove protective earth and continuity, verify the drawing terminal-by-terminal, then energise through the protective device and measure the expected supply, signal and return values. Never use this training panel as a substitute for the machine manufacturer’s instructions, risk assessment, isolation procedure or applicable electrical standard.
Hints
Power and earth the master before connecting the field port.
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This lesson uses 7 placed components on the lab canvas. Components are vendor-neutral (no proprietary trademarks); the wiring rules apply to any equivalent industrial part.
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