If a device can be a Link Active Scheduler (LAS), the Link Master Configuration menu option displays in the Service Tools menu. Select Master if you want the device to attempt to be the LAS, or select Basic to prevent the device from becoming the LAS. After you set the option, the Trex unit disconnects from the device.
Setting the device as a link master does not set the device as the LAS. The link master device must follow the process to become the LAS if other link master devices are on the fieldbus segment.
Note: You cannot change the device to be a link master or basic device
when a host/linking device is detected on the fieldbus segment. To change the
device to be a link master or basic device, use the host system or remove the
device from the fieldbus segment and connect it directly to the Trex unit.