PI 7.4 Program ID xxx Not Registered

Hi all,

     I want to configure two Resource Adapters for two ECC sender systems(D60&S60) with kernel 720.

     I haved created Resource Adapter outboundRA for D60,and created an RFC( PI74_TO_D60) in D60 ,it worked fine.

     But when I configured Resource Adapter outbounds60 and created and RFC(PI74_TO_S60) in S60,while I tested it,error occured:

          Error when opening an RFC connection

          ERROR: program XI_S60_PID not registered

          LOCATION: SAP-Gateway on host ANTAX88XD1.anta.com / sapgw08

          DETAIL: TP XI_S60_PID not registered

          COMPONENT: SAP-Gateway

          COUNTER: 33

          MODULE: gwr3cpic.c

          LINE: 1833

          RETURN CODE: 679

          SUBRC: 0

          RELEASE: 720

          TIME: Thu Oct 22 16:45:14 2015

          VERSION: 2

     I can't find program id XI_S60_PID in SMGW in S60 system.

     How to solve it ?

     Thanks,

     Vince Wang