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C
HAPTER
3: C
ONFIGURING
THE
AXN
SYSTEM
47
3.
Set the channel range to the required range for the ICP input.
4.
Set
Excitation Amplitude
to
0
.
N
OTE
:
The AXN/ADC/401 automatically supplies 3.6 mA ICP excitation current when set to ICP sensor mode.
Configuring the AXN ARINC-429 bus monitor
The AXN/ABM/401 is a 24 channel ARINC-429 bus monitor/packetizer module. 24,574 ARINC-429 word
definitions, based on Label/SDI/SSM combinations, can be defined across all channels, to cherry pick specific
ARINC-429 words of interest. The packetizer functionality is an all-bus traffic capture process, where ARINC-429
words are captured and placed into timestamped packetizer Ethernet packets as they arrive and transmitted out of
the chassis as the packet fills. Packetizer functionality into iNET-X, IENA D type, and IENA N type packetizer
formats are supported in DAS Studio 3. Packetizer packets per channel or combined, all channels into one
packetizer packet, are supported. The AXN/ABM/401 also allows you to define rules to control which words are
packetized. Rules to allow only specific words into the packetizer packets or to block specific words from being
packetized are supported.
The AXN/ABM/401 contains a number of module-level word count and status parameters.
The Word count parameters, P_MyAXN_ABM_401_ARINC-429-In(0)_WordCount, are parameters that count the
number of valid ARINC-429 words received on each channel. There is a WordCount parameter for each channel.
These are 16-bit parameters that count from 0 to 65535 and roll over back to 0.
The Report parameter, P_MyAXN_ABM_401_Report, indicates errors on ARINC-429 words received and which
bus the error was seen on. For details, see the data sheet.
The module word count, P_MyAXN_ABM_401_ModuleWordCount, is a count of all words received on all active
busses. This is a 16-bit parameter that counts from 0 to 65535 and rolls over back to 0.
The bus speed of all busses is reflected in the BusSpeedAll parameter. This parameter is available as a 32-bit
parameter, P_MyAXN_ABM_401_BusSpeedAll or two 16-bit parameters. By default, the 32-bit parameter is
available.
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