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How-to set PLC as a Master in PROFINET-INspektor®

It is important to identify to the PROFINET-INspektor®, which PLC is in charge of acting as master in the network; to do so, the following steps must be performed:


1. Click on “Configuration” > “Monitoring” and then “Device names and monitoring options”:

PROFINET-INspektor®: Configuration > Monitoring > Device names and monitoring options

2. This will display a list of devices. It is necessary to identify which is the main PLC, then check the “Only Connected” box on that device, and finally click “Apply”.

PROFINET-INspektor® NT Device names and monitoring options