Siemens Wireless LAN problem

[S7superp 0]

Hiiiiiiiiiiiiiiiiii I am having one siemens WILAN / PB LINK IO model i am facing problem in this that it goes BF(Bus Fault) mode automatically i have checked the my input 24V there is no problem with my input supply of wireless unit still i am facing same problem Can any one help me in this to slove my problem.

[Rowan Finch 0]

Bus Fault indicated that the interface module does not receive initialisation from Master system OR initialised but commuincation lost 1. Check that the radio link if functioning (and there are many things to get wrong there) and fast enough as well. 2. Check IO config is correct 3. Look at CPU diagnostics buffer if S7-300/400