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Endura ACA592
Toroidal conductivity transmitter
7.3.7 Communication
Menu
Communication
Exit
Communication Level
Parameter
Poll Addr
HART Tag
Burst Mode
Status
Command
Resp. Preamble
OI/ACA592/TC–EN Rev. B
Used to configure HART communication parameters – see
7
Section 9, page 72.
Select
Description
The Poll Addr. (poll address) is used by a HART communication master to communicate
with a HART device.
Poll Addr. = 0 conforms to HART point-to-point operating mode
(4 to 20 mA current output following the Primary Value).
Poll Addr. = 1 to 15 conforms to HART multidrop operating mode, where more than one
HART device can coexist on the same set of communication lines.
The current output is fixed at 4.0 mA and does not follow the Primary Value.
Note. Changing the Poll Addr. while the transmitter is communicating with a HART master
causes loss of HART communication.
A configurable 8-character HART tag used for identification.
Burst Mode is a HART feature used to transmit one of three Universal HART command
response packages on the HART bus continuously, without the need for commands being
sent by the Master.
This can be used to provide the quickest possible output from the transmitter.
Enables / disables Burst Mode (On / Off).
Selects the HART command for which the response package will be transmitted
continuously from the transmitter when Burst mode is turned on, refer to Section 9, page 72
for details of available commands.
The Resp. Preamble (response preamble) parameter determines the number of
communication preamble bytes sent in the response message from the transmitter.
The Response preamble can be set for any value from 5 to 20 bytes (default value 5 bytes).
Note. This value must be synchronized with the control system.
7 Operator Pages and Menus
61
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