Reference Manual
00809-0100-4075, Rev BA
October 2010
5-3
Smart Wireless THUM Adapter
Discovery Mode
The discovery mode is how the THUM Adapter determines which wired
device it will update for. There are 3 modes “First Device Found”, “Fixed
Polling Address”, and “Fixed Mapping”. The default mode is First Device
Found. In First Device Found Mode, the THUM Adapter will update for the first
wired device that it finds on the wired bus. This mode is best used when there
is only one device on the wired bus. If more than one wired device is found,
the THUM Adapter will go into alert.
In Fixed Polling Address mode, the THUM will only update for a wired device
at specific HART polling address. Any address can be entered. If no device is
found at this address, the THUM Adapter will go into an alarm state.
In Fixed Mapping mode, the user selects the long tag from a list of devices
that are currently on the wired bus. If the selected device goes off line, the
THUM will not start updating new device, and will go into an alarm state.
In AMS Select
Manual Setup
and then the
Wired Device
tab.
Configure HART Polling
The Configure HART Polling method allows the user to select which
commands the THUM Adapter will update for the wired device. The user can
select from pre setup information or select custom and enter the HART
command that they would like to have the THUM Adapter update for the wired
device.
In AMS Select
Manual Setup
and then the
Wired Device.
Configure Router Only
Mode
This mode will set the THUM Adapter up as a router only device. The THUM
Adapter will no longer look for wired devices or update for any wired device
that is on the HART loop. The THUM Adapter will continue to send updates
for itself and will also act as a wireless node in the wireless network.
In AMS Select
Manual Setup
and then the
Other
tab.
HART Address
This is the HART Polling address of the THUM adapter. This can be changed
from 0 to 63. This is used when using wired HART communication to talk with
the THUM. The THUM Adapter default HART polling address is 63.
In AMS Select
Manual Setup
and then the
Other
tab.
HART Master
Here is where the user can set the THUM Adapter to either a primary or
secondary HART master. The THUM is set to primary as default, if another
primary master is on the HART loop it may be necessary to change the THUM
Adapter to a secondary master. This will not affect the functionality of the
THUM Adapter. The number of retries can be set to between 2 and 5.
In AMS Select
Manual Setup
and then the
Other
tab.
Fast Keys
2, 2, 2,3
Fast Keys
2, 2, 2,4
Fast Keys
2, 2, 5,2
Fast Keys
2, 2, 5,3
Fast Keys
2, 2, 5,4
Summary of Contents for Rosemount Smart Wireless THUM
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