Configuration
22
1980
2010
-0
2
49
5.5
Wired Communication Parameters
The
Wired Communication
parameters pertain to the HART communication between the
adapter and and HART device(s) connected to it. Up to four HART devices can be
connected in multidrop mode to the adapter, each requiring a different HART address.
Figure 5.6: Wired communication parameters
Wired Communication Parameters
Parameter
Description
Default
Polling Address
HART address of the device set in
Identification
.
–
Master Type
HART master role to be assumed by the adapter.
• Primary master: The connected HART device has no
other permanent master.
• Secondary master: The connected HART device
communicates with a permanent HART primary master,
e.g. PLC.
If a handheld device or PACTware are connected
temporarily to the HART device when the adapter is
operational, they must have the role of secondary master.
Primary
Master
Preambles
Number of preambles sent at start of HART frame to
sychronize communication with the connected HART
device. All connected devices must have the same
settings. Valid range: 5 ... 20.
5
Retries
Number of times the adapter tries to establish
communication with a connected HART device before it
reports a communication error
3
