Emerson Process Management 5300 manual Foundation Fieldbus Overview

Rosemount 5300 Series

Reference Manual

00809-0100-4530, Rev BA July 2009

FOUNDATION FIELDBUS OVERVIEW

Figure 5-10illustrates how the signals are channeled through the transmitter.

Figure 5-10. Function Block Diagram for the Rosemount 5300 Series Radar Level Transmitters with FOUNDATION Fieldbus.

FOUNDATION

Fieldbus

Compliant

Communications

Stack

Level
Transducer	Advanced
Block	Configuration
	Block

Resource Block

Register physical device

Transducer information Block

Assigning Device Tag and Node Address

NOTE!

It is highly recommended that you limit the number of periodic writes to all static or non-volatile parameters such as HI_HI_LIM, LOW_CUT, SP, TRACK_IN_D, OUT, IO_OPTS, BIAS, STATUS_OPTS, SP_HI_LIM, and so on. Static parameter writes increment the static revision counter, ST_REV, and are written to the device's non-volatile memory. Fieldbus devices have a non-volatile memory write limit. If a static or non-volatile parameter is configured to be written periodically, the device can stop its normal operation after it reaches its limit or fail to accept new values.

This section provides a brief overview of FOUNDATION Fieldbus block operation with the Rosemount 5300 Series Level Transmitter.

For detailed information about FOUNDATION Fieldbus technology and function blocks used in the Rosemount 5300 Series, refer to the FOUNDATION Fieldbus Block Manual (Document No. 00809-0100-4783).

A Rosemount 5300 Series transmitter is shipped with a blank tag and a temporary address (unless specifically ordered with both) to allow a host to automatically assign an address and a tag. If the tag or address need to be changed, use the features of the configuration tool. The tool basically does the following:

1.Changes the address to a temporary address (248-251).

2.Changes the tag to a new value.

3.Changes the address to a new address.

When the transmitter is at a temporary address, only the tag and address can be changed or written to. The resource, transducer, and function blocks are all disabled.

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