How to get connected elements between components in hypermesh/hyperworks using "hm_getconnected2delems"?

Hi,

I want to connect 2 surfaces/components (2D) automaticly by using a contact (very low level question). Therefore I want to create 2 "contact surfaces" and use "contact pair".

1. Question: Is this even the right way? Or would it be enough to use 2 sets of "SET_ELEM" with the elements on the edge and pair them? Or 1 "SET_ELEM" and 1 "SET_GRID" with the nodes of the edge?

The elements and nodes between the components can be found by using the command "hm_getconnected2delems".
The Code I build so far for the first "contact surfaces" is:

*createentity sets cardimage=SURF name="set_1" id=1;   *createmark comps 1 "1" "2" *createstringarray 3 "find: 1 0 1 1" "features: 0 179.9 comp" "output: 0 1 1" set entity_list_all_comps [hm_getconnected2delems comps 1 1 3];    #as discribed in documentation set elem_list_comp_1 [lindex $entity_list_all_comps 0];            #elements from comp 1 set node_list_comp_1 [lindex $entity_list_all_comps 2];            #nodes from comp 1  eval *createmark elements 1 $elem_list_comp_1  eval *createmark nodes 1 $node_list_comp_1 *segmentsetaddfaces "set_1" 1 1 30 1 0

Same thing for the second "contact surface".
But somehow its not working. I think the lists are empty, but I cant see the elements in the list ("puts" isnt working)

Do you know how to use this command correctly?

Thanks for your answers!