The Trex unit may automatically display the device on the Device List if the device is on a fieldbus segment that has a host system or a FOUNDATION fieldbus device that is the LAS.
The Trex unit will become the LAS if it is connected to an externally-powered FOUNDATION fieldbus device on a fieldbus segment with no communications.
Connect the lead set to the FF terminals on the Trex unit and the
Example of connection to the fieldbus segment
- Power conditioner
- Fieldbus power supply
- Host system
- Open the Field Communicator application.
- If the Trex unit does not automatically find the device, tap Fieldbus on the Connect - Select screen.
Device List, tap the desired device.
The device menu is displayed.
- To disconnect a device, tap , or remove the lead set.