The Interface Solution Experts
21
THZ
2
&
TDZ
2
Programmable Smart HART
Temperature Transmitter and Display
Using the HART Communicator
The THZ
2
and TDZ
2
can be programmed using
a HART Communicator. If your communicator is
equipped with the Device Description (DD) for your
transmitter,
The HART Communicator Menu with a
Device Description
section gives an overview of the
menus and instructions for programming.
If your communicator is
not
equipped with the required
Device Description, go to
The HART Communicator
Menu without a Device Description
section of this
manual. Even if your communicator is not up to date,
most of the important programming features can be
accessed without the THZ
2
and TDZ
2
DD by using the
Generic HART DD available on HART Communicators.
If you are using a Fisher-Rosemount Model 375 HART
Communicator, or other host, you may download the
latest Moore Industries DD at www.hartcomm.org.
The THZ
2
and TDZ
2
DDs are available on the HART
Foundation’s Device Driver Library Release December
2005 and later.
For installation of the latest device description through
the HART Foundation, send the Communicator to the
the following address:
HART Communication Foundation
9390 Research Blvd., Suite I-350
Austin,
TX
78759-6540
USA
Phone: (512) 794-0369
Fax: (512) 794-3904
www.hartcomm.org
Ensure that you contact the HART Foundation
to determine their requirements in sending the
instrument to their facility.
If you are using a Fisher-Rosemount Model 275
HART Communicator, perform the following steps to
determine if your communicator has the appropriate
Device Description. With the communicator turned on,
press
1
to select
Offline
then press
1
again to select
New Configuration
. A list of companies will appear
which, if you have the appropriate Device Description,
will include Moore Industries THZ
2
/TDZ
2
.
If you find that you require the latest version of the DD,
you must send the Communicator to Moore Industries.
To do this, contact our Customer Service department
for a Returned Material Authorization (RMA).
Include Moore Industries’ configuration sheet
indicating the Device Descriptions that you require.
We will load the Device Descriptions of your choice for
a nominal charge.
Programming When a Device
Description is Available
Note:
All parameters, except the Custom Curve feature,
can be configured using the HART Communicator.
The Custom Curve table can only be configured
using the PC Configuration Software Program.
With the transmitter connected as illustrated in
Figures 7 or 8 (depending upon your instrument’s
housing) apply power and turn on the communicator.
After a brief self-test, the communicator will show the
main menu and identify the unit as a THZ
2
or TDZ
2
.
This section contains the instructions for programming
the transmitter using a HART Communicator that has
been programmed with a HART Device Description.
If your communicator does not have the appropriate
Device Description, skip to
The HART Communicator
Menu without a Device Description
section of
this manual. Figure 15 shows an overview of the
programming menus for the configuration process.
Note:
While performing Analog Output Trimming functions,
you may notice a message in the THZ2/TDZ2 Status
display reading **OUTPUT FIXED**” Clicking the
Unfix button will clear this message.
Searching for a Connected Unit
If using HART Communications and you need to
search for a connected THZ
2
or TDZ
2
unit with an
unknown address, you can perfom an address
search. An address search sequentially polls short
frame addresses 0 through 15 with HART Command
0–
read unique ID.
The first device to respond stops
the address search and the device’s configuration is
uploaded to the PC Configuration Program.
To begin an address search, you may either click
the button on the tool bar or select
Address
Search
from the
View
dropdown menu. You can view
search progress in the
Address
box located in the
Communications
section of the PC Configuration
Program.
