Communication - ABB Endura APA592 Operating Instruction

Endura APA592
pH / Redox (ORP) transmitter

7.3.7 Communication

Menu
Communication
Exit
Communication Parameters
Parameter
Poll Addr
HART Tag
Burst Mode
Status
Command
Resp. Preamble
OI/APA592–EN Rev. E
Used to configure HART communication parameters – see
7
Section 9, page 83.
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 device 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 continuously transmit one of three
Universal HART command response packages on the HART bus, without the
need for commands being sent by the Master.
This can be used to provide the quickest possible output from the device.
Enables / Disables Burst Mode (On / Off).
Selects the HART command for the response package that is transmitted
continuously from the device when Burst Mode is turned on – refer to Section
9.3, page 86 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
device.
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
Tx
Type
All
69