3. Automatic scanning of the IO-Link ports

This part of the documentation describes the configuration of the physically available IO-Link devices in TwinCAT.

During automatic scanning of the IO-Link ports, the steps “WakeUp pulse”, “Baud rate setting”, “Reading of the communication parameters”, plus “Parameter server” and “Cyclic data exchange”, if applicable, are performed, see Establishing the IO-Link communication. The corresponding IO-Link device must be connected to the IO-Link port for this.

The connected devices are automatically detected, configured and a search is performed for the associated IODD.

Finding connected IO-Link devices

Prerequisite: the master and the devices are connected and powered.
1. Click on the “Scan Devices” button (see following figure).
3. Automatic scanning of the IO-Link ports 1:Fig.24: Scan Devices
The connected IO-Link devices are found.
The connected device is listed for each port in the information window.
Only port 2 of the master is assigned an IO-Link device.
Confirm the information window with the “OK” button.
3. Automatic scanning of the IO-Link ports 2:Fig.25: Information “Scan Devices”
1. To be able to work with the devices, the button “Reload Devices” must be clicked. 3. Automatic scanning of the IO-Link ports 3:

The IO-Link devices are now entered in the “General” tab. To the right of the port display, further tabs can be opened for information and settings for the IO-Link device.

3. Automatic scanning of the IO-Link ports 4:Fig.26: Device on port 2, settings and information on the IO-Link device via buttons 1 - 6

1: “Settings”

Viewing and changing the settings of the IO-Link device

2: “Properties”

Viewing and changing the parameters of the IO-Link device

3: “Process Data”

Process data of the IO-Link device

4: “Data Storage”

Displaying data stored in the parameter server

5: “Event log”

Displaying errors and warning messages

6: “Remove device from port”

Removing IO-Link devices from port n

Displaying Device Settings

1. Open the “Settings” tab via the “Settings” button.
2. If necessary, change the settings in the “Settings” tab as described in the chapter Settings of the IO-Link devices.
3. Automatic scanning of the IO-Link ports 5:Fig.27: Open the “Settings” tab for port 2
3. Automatic scanning of the IO-Link ports 6:Fig.28: Device port 2 settings

Displaying Device Parameters

1. Open the “Parameters” tab via the “Properties” button.
The parameters of the respective IO-Link device are listed.
2. Parameterize the device as described in chapter EPIxxxx, ERIxxxx - Setting the IO-Link device parameters.
3. Automatic scanning of the IO-Link ports 7:Fig.29: Open the “Parameters” tab for port 2
3. Automatic scanning of the IO-Link ports 8:Fig.30: Parameter device port 2