DSS NETWORKS Gig-cPCI-3U Bedienungsanleitung PDF herunterladen (Seite 39)

product selection guide · summer 2007 |

av i o ni c s

Notes

BusTools/1553

Software support only available for Santa Barbara based cards. Contact factory for listing of supported products.

BusTools/AFDX

Software support only available for Santa Barbara based cards. Contact factory for listing of supported products.

BusTools/ARINC

Software support only available for Santa Barbara based cards. Contact factory for listing of supported products.

PASS 3200

Software support only available for Albuquerque based cards. Contact factory for listing of supported products.

Data Bus Analyzers

Our powerful application software gives you simpliﬁed control over receive, transmit, logging

and analysis functions. You can analyze bus trafﬁc, quickly generate or modify messages and

view received data in engineering units. Our tools provide a full suite of advanced features for

use in the laboratory, in ﬂight or on the ﬂight line.

The wide range of protocols in use today in

various bus systems for military, avionics and

other commercial applications has acceler-

ated the evolution of bus analyzers. As a

result, choosing the right analyzer is no longer

a simple task. The following are some impor-

tant new features you may want to evaluate

before selecting an analyzer:

P.C. vs. Box-based Analyzers

PC-based analyzers with a graphical user

interface (GUI), such as our BusTools and

PASS3200, provide distinct advantages over

box-based analyzers. They include the ability

to perform protocol checking and set up

terminals using the GUI software. PC-based

analyzers also make it easy to set up data

streams and data buffers for export to other

applications and to perform engineering-unit

conversion. This would be very difﬁcult to set

up in a box-based analyzer.

Clear, User-Friendly Interface

Users today expect a clear, tree-based

interface or a tree based representation of

the bus. A graphical presentation breaks out

the bus components and their sub-features,

and provides the user with a clear picture of

the bus. Furthermore, a bus analyzer should

provide a detailed presentation of bus activity

while the analyzer is running.

Three Distinct Functions

A full-featured bus analyzer can be divided

into logic analyzer functions, protocol analyzer

capabilities and system-level troubleshooting.

Logic analysis enables the user to set up

separate ﬁles, based upon certain activity

patterns or events that occur on the bus.

A logic analyzer can also discard words or

messages unrelated to bus analysis. System-

level troubleshooting offers the ability to set

upper and lower boundaries so an alarm is

sent when the value breaks these boundaries.

Archiving Trafﬁc

Archiving trafﬁc off the bus allows playback of

a particular activity. Playing an archived data

ﬁle back to the interface bus allows the user to

take data gathered in the ﬁeld back to a labo-

ratory environment where the problem can be

recreated for further analysis and trouble-

shooting. Both the BusTools and PASS3200

analyzers provide this feature.

Different Vantage Points

PC-based bus analyzer

tools provide many

different ways to look at

protocol and system level

analysis. For instance, a

‘data watch’ feature allows

the user to actually graph

the data as it occurs.

Multiple comparative

windows enable analysis

of bus activity at different

points within the bus trafﬁc,

allowing comparison of

messages and/or the data.

With BusTools, the user can

request a sequential view

which displays the data that occurs contigu-

ously within an inverted stack. It displays

the ﬁrst message recorded, followed by a

sequence of other messages, which followed

the ﬁrst message. This is sometimes called a

‘sequential view’ or a ‘stacked view’.

Simulation Ability

Another important requirement to consider in

choosing a bus analyzer is the ability to simu-

late the terminals related to data bus trafﬁc.

For instance, in MIL-STD-1553 the analyzer

would simulate the bus controller or a remote

terminal. This means loading up the bus

analyzer with data and errors that can then

be used to stimulate other components on the

bus to learn just how they will react.

Selecting a Bus Analyzer

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