Function Call in ST

Send2a (  EN   := Send2a_EN,
          SLOT := Send2a_SLOT,
          NUM  := Send2a_NUM,
          DATA := ADR(Send2a_DATA));


Send2a_DONE    := Send2a.DONE;
Send2a_ERR     := Send2a.ERR;
Send2a_ERNO    := Send2a.ERNO;