This is our old Q&A Site. Please post any new questions and answers at ask.wireshark.org.

How to setup wireshark capture between two Serial Modbus Master/slave Devices? - Modbus RTU Protocol.

asked 30 Jul '15, 05:51

Narasimhan%20Ragunathan's gravatar image

Narasimhan R...
6112
accept rate: 0%


Out of the box it can't. The usual way to monitor such traffic is to convert the serial traffic to Ethernet using a device server such as these Lantronix devices (there are other similar, cheaper, devices available). You can then use one device at each end and use a tap or switch with port mirroring (or even a hub) in between each end and then capture the traffic.

If the Modbus master is on a PC, the application can often be configured to use TCP/IP instead of serial, in this case you only need one device server at the Modbus slave end.

permanent link

answered 30 Jul '15, 07:07

grahamb's gravatar image

grahamb ♦
19.8k330206
accept rate: 22%

Your answer
toggle preview

Follow this question

By Email:

Once you sign in you will be able to subscribe for any updates here

By RSS:

Answers

Answers and Comments

Markdown Basics

  • *italic* or _italic_
  • **bold** or __bold__
  • link:[text](http://url.com/ "title")
  • image?![alt text](/path/img.jpg "title")
  • numbered list: 1. Foo 2. Bar
  • to add a line break simply add two spaces to where you would like the new line to be.
  • basic HTML tags are also supported

Question tags:

×2

question asked: 30 Jul '15, 05:51

question was seen: 1,502 times

last updated: 30 Jul '15, 07:07

Related questions

p​o​w​e​r​e​d by O​S​Q​A