Contemporary-control-systems BASrouter Application Guide Manuale Utente Scaricare il pdf (Pagina 15)

AG-BASRTB00-BD0 Page 15

Application Guide — BASrouters

T R L SO

CONTEMPORARY

The BASrouterLX is a high-performance router with

diagnostic capabilities. It has a faster processor and

more memory than the BASrouter or Portable BASrouter.

It can do all the previous 9 applications. One feature

that the BASrouterLX has over the BASrouter or

Portable BASrouter is the ability to capture MS/TP trafc

and present that trafc to a PC connected on the

BACnet/IP side of the BASrouterLX. Installed on the

same PC that is used for browsing is the Wireshark

protocol analyser. It can be downloaded for free from

Wireshark.org. Intended for analysing packets sent

over Ethernet, Wireshark can also decode packets sent

over a serial bus like MS/TP thanks to its built-in

BACnet decoder.

Capturing serial data remotely is a handy feature when

verifying proper MS/TP network activity without the

requirement of installing specialized interfacing

hardware to the MS/TP bus. As a background task, the

BASrouterLX continuously records the last 3900

messages sent over MS/TP including both data and

token passes. By depressing the Generate MS/TP

Wireshark File, those last 3900 messages are

converted to a “pcap” format le for viewing by a

Wireshark. Once the conversion is made, depressing

the View MS/TP Trafc button sends the captured le

to the attached PC for Wireshark viewing. BACnet

protocol decoding is built into this free but powerful

protocol analyser so the system integrator can study the

trafc for any anomalies while verifying that all serial

devices are participating in the token pass. No

special conguration is involved. Any properly

installed BASrouterLX is ready to transfer captured

MS/TP at anytime.

Application #10 — Capturing MS/TP Trafc

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Contemporary-control-systems BASrouter Application Guide Manuale Utente Pagina 15