Natarajan,
I don't know if the P80 Workbench software supports the VersaMax I/O. If I were you I would try and setup a test PLC to experiment with. I also don't know if VersaPro supports the communication modules or fieldbuses that Alstom uses (e.g WorldFip,N80 bus). If you end up using VersaPro, you might have to configure some of the modules with the handheld programmer. If all else fails, you could contact Converteam(formally Alstom Power Conversion)
Hope this helps,
Andrew