I need to take backup parameters for sipart dr21 there is any way for that 

i know there is way with simatic pdm i i need steps for doing that or any other way

Dear Mostafatalat,

With the DR21 you should take it with the hand buttons.

With PDM you need a Profibus DP interface.

Profibus DP module and a Programmer.

For the list of the parameters please open a service request with the product DR21.

Kind regards

I already had Profibus DP module what programmer you mean 

and there is any way with steps to  doing that with simatic pdm