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Parameter assignment/addressing
9.5 Illustration of the device variables of the adapter
The following list contains information about the structure of these input boxes and the format
in which you can enter information in these boxes:
Parameter
Polling address
Master mode
Num. response pream‐
bles
Retry count
Lowest scan address
Highest scan address
9.5
Illustration of the device variables of the adapter
The WirelessHART adapter can output the value and status of various variables. Four variables
can be represented in the network. They can be represented and configured with
SIMATIC PDM.
The following list contains information about the structure of these input boxes and the format
in which you can enter information in these boxes:
Parameter
Primary variable
Unit of the primary vari‐
able
Secondary variable
Unit of the secondary
variable
Tertiary variable
54
Meaning
HART address of the WirelessHART adapter.
● Default setting 15
● Range 0 ... -63
In a current loop, a device configurator such as
SIMATIC PDM and the WirelessHART adapter
(as examples) must be assigned different HART
master types.
● The default setting is primary master
● There is a primary master and a secondary
master.
● If you connect a device configurator or a an‐
other master/host, this must be set to secon‐
dary master.
Number of preambles sent at the start of the HART
frame to synchronize wired communication.
● Range 5 ... 20
Number of attempts made by the WirelessHART
adapter to establish communication with the con‐
nected field device before a connection error is
signaled.
Address at which the WirelessHART adapter be‐
gins to search for connected field devices.
Address up to which the WirelessHART adapter
scans for connected field devices.
Meaning
First variable
● The variable is linked directly to the meas‐
ured current value.
Unit of the primary variable
Second variable
Unit of the secondary variable
Third variable
Example
63
Primary master
5
3
0
1
Example
l
Temperature
°C
Battery voltage
WirelessHART Adapter SITRANS AW200
Operating Instructions, 02/2020, A5E02777161-AA
Default
15
3
0
1
Default
mA
Temperature
°C
Battery voltage
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