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WHA-ADP-*
Configuration
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
Polling Address
Master Type
Preambles
Retries
Description
HART address of the device set in Identification.
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.
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.
Number of times the adapter tries to establish
communication with a connected HART device before it
reports a communication error
Default
–
Primary
Master
5
3
49
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