Probelm while connecting from PI server to BAPI (exposed as webservice)

hi friends

i exposed BAPI as webservice in R/3 system .

when i am trying to test from tcode wsadmin with

"http://10.136.148.36:8002/wsnavigator/jsps/explorer.jsp?description=WebServiceZZBAPI_USER_GET_DETAIL&name=ZZBAPI_USER_GET_DETAIL&wsdl=http%3A%2F%2Finst50053318.BLR4.SAP.CORP%3A8002%2Fsap%2Fbc%2Fsrt%2Frfc%2Fsap%2FZZBAPI_USER_GET_DETAIL%3Fsap-client%3D001%26wsdl%3D1.1"

its giving reponse when i test it.

if directly opens with Internet Explorer through the following link

"http://inst50053318.blr4.sap.corp:8002/sap/bc/srt/rfc/sap/ZZBAPI_USER_GET_DETAIL?sap-client=001" its showing HTTP 500 - Internal server error in R/3 system.

in PI SERVER i am trying to call this webservice using SOAP adapter with scenario HTTP->SOAP.

i configured the soap adapter using URL "http://inst50053318.blr4.sap.corp:8002/sap/bc/srt/rfc/sap/ZZBAPI_USER_GET_DETAIL?sap-client=001&wsdl=1.1".

nw its giving the respose like " HTTP 500 TIMED OUT ERROR" as wellas showing Application server error".

please suggest me with ur valuable inputs

thanks & regards

Ravi