8
DESCRIPTION OF HART INTERFACE
36
SMARTPAT COND 1200
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09/2015 - 4003041501 - MA SMARTPAT COND1200 R01 en
8.3 Connection variants
The sensor is a 2-wire device with a passive 4...20 mA current output and HART
®
interface.
•
Multidrop mode is supported
Multidrop mode is supported
Multidrop mode is supported
Multidrop mode is supported
In a multidrop communication system, up to 32 devices can be connected to a common
transmission cable.
•
Burst mode is not supported
Burst mode is not supported
Burst mode is not supported
Burst mode is not supported
In the burst mode a slave device transfers cyclic pre-defined response telegrams, to get a
higher rate of data transfer.
There are two ways of using the HART
®
communication:
•
as Point-to-Point connection and
•
as Multidrop connection, with 2-wire connection.
CAUTION!
For installation in a multidrop communication system please consider the voltage drop for the
250
Ω
loop resistance for HART
®
communication. The supply voltage has to be adjusted.
MA_SMARTPAT_COND_1200_en_150902_4003041501_R01.book Page 36 Monday, September 21, 2015 4:33 PM
