Hi Dipak,

TMC on S505 only works on Primo in mode list. You need to enter the frequency of your TMC FM local provider.
It also seems that you do not have unlocked TMC.
You also need this as a miminum in your sys.txt:

[lua]
tmcwaspresented="1"

[tmc]
source="gnsport"
port="COM,1"
baud=14400