Endura APA592
pH / Redox (ORP) transmitter
7 Operator Pages and Menus
OI/APA592–EN Rev. E
69
7.3.7 Communication
Used to configure HART communication parameters – see
Section 9, page 83.
Communication Parameters
Parameter
Description
Tx
Type
Poll Addr
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.
All
HART Tag
A configurable 8-character HART tag used for identification.
Burst Mode
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.
Status
Enables / Disables Burst Mode (On / Off).
Command
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.
Resp. Preamble
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
Menu
Exit
Select
Communication