OnRobot VGC10 User Manual page 34

Installation
NOTE:
If the Tool connector option is selected in the Device info drop-down
menu but no OnRobot product is connected to the tool connector then a
background service program is running every 2 seconds. In addition to
that the Tool IO is set to be logic high and low randomly.
CAUTION:
After any error message is shown that is related to the connection to our devices,
please go to the Device info to make sure that the right settings (e.g.: TCP) are used.
To get more information about the devices press on and the following screen will show:
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