Programming Siemens LOGO using only the keys.

Hey everybody,
I am new to Siemens Logo. I have started with 6ED10521MD00 -0BA6.
Also i don't have any external text display.Upto my knowledge It can be programmed using the esc ok and the four other keys also. But I am not able to understand the meaning of variables given in.Can anyone provide me with some kind of document on it??
I dont have the USB Cable so can't use the soft Comfort Software.
Help me out Please !!!

Neharika
India

I believe the LOGO software is a free siemens download

iant said:

I believe the LOGO software is a free siemens download

Click to expand...

I don't think so m8, it's not very expensive but it's not free.

it is porbably who you know then - the local rep is a long time friend - no cost
Obviously not the Step_7 unfortunately

Ya bt i want to program only by using the keys.that ia what i want to learn first .Any suggestions for that ???

search the Siemens automation site for the manual - it might help
I would suggest you do that because it might be available in your language