Emerson 308014EN Manual do Utilizador descarregar pdf (Página 41)

6-1

Rosemount Tank Radar REX

Chapter 6 The Field Communication

Installation Manual

308014EN, Edition 4

May 2013

6. The Field Communication Unit

The Field Communication Unit (FCU) continuously polls data from the

Radar Tank Gauges and the Data Acquisition Units and stores it in a

buffer memory. The Field Communication Unit is the master on the Field

Bus but acts as a slave on the Group Bus.

Note! No explosion protection is provided, so the Field Communication Unit

must be installed in a non-hazardous area.

Figure 6-1. The Field Communication Unit.

6.1 FCU Enclosure

As standard the Field Communication Unit is shipped in a weather

protected, wall-mounted box of the same type as the Data Acquisition

Unit. The Field Communication Unit is built on a Printed Circuit Board

and may be delivered as such for mounting within a customer supplied

enclosure.

Ground

connection

Cable

outputs

FCU_2160.eps

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Emerson 308014EN Manual do Utilizador Página 41