Emerson Process Management ROSEMOUNT 5300 - Manual (Page 108)

Reference Manual
00809-0100-4530, Rev BA
July 2009
Rosemount 5300 Series
5-36
F OUNDATION FIELDBUS
OVERVIEW
Figure 5-10 illustrates how the signals are channeled through the transmitter.
Figure 5-10. Function Block
Diagram for the Rosemount
5300 Series Radar Level
Transmitters with F
OUNDATION
Fieldbus.
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 F OUNDATION Fieldbus block
operation with the Rosemount 5300 Series Level Transmitter.
For detailed information about F OUNDATION Fieldbus technology and function
blocks used in the Rosemount 5300 Series, refer to the F OUNDATION Fieldbus
Block Manual (Document No. 00809-0100-4783).
Assigning Device Tag
and Node Address 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.
FOUNDATION
Fieldbus
Compliant
Communications
Stack
Level
Transducer
Block
Register
Transducer
Block
Resource Block
physical device
information
Advanced
Configuration
Block