Function Call in ST

SEND_COM
(EN := EN_COM_SEND,
COM := COM_COM_SEND,
DATA := ADR(DATA_COM_SEND),
LEN := LEN_COM_SEND,
END_CH := END_CH_COM_SEND,
END_LEN := END_LEN_COM_SEND);

DONE_COM_SEND := SEND_COM.DONE;

ERR_COM_SEND := SEND_COM.ERR;
ERNO_COM_SEND := SEND_COM.ERNO;