DECLARE FUNCTION TxPacket(BYVAL Port AS INTEGER,BYVAL PacketNbr AS INTEGER,Buffer() AS BYTE,BYVAL PacketSize AS INTEGER,BYVAL NCGbyte AS BYTE) AS INTEGER
DECLARE FUNCTION RxPacket(BYVAL Port AS INTEGER,BYVAL PacketNbr AS INTEGER,Buffer() AS BYTE,PacketSize AS INTEGER,BYVAL NCGbyte AS BYTE,EOTflag AS INTEGER) AS INTEGER
DECLARE FUNCTION RxStartup(BYVAL Port AS INTEGER,BYVAL NCGbyte AS BYTE) AS INTEGER
DECLARE FUNCTION TxStartup(BYVAL Port AS INTEGER,NCGbyte AS BYTE) AS INTEGER
DECLARE FUNCTION TxEOT(BYVAL Port AS INTEGER) AS INTEGER