Hello Rachana,
I have tried reaching you via phone but I will give you the link to some the documents you will need.
Document on
Multi-chassis VXI configurationsAlso I want to like you know there are two ways to set up the chassis logical address
1. Automatically using software please see
link.
2. Manually using the switches please see
link.
Please let me know how this goes. Lets start with a 2 chassis system and move up to a 3 chassis configuration.
Christian A
National Instruments
Applications Engineer