Langage 4D Commandes par thème CommunicationsVersion : 21CommunicationsGET SERIAL PORT MAPPING ( tabNums ; tabLibellés ) RECEIVE BUFFER ( varRéception ) RECEIVE PACKET ( {docRef ;} réceptVar ; stopChar )RECEIVE PACKET ( {docRef ;} réceptVar ; numBytes ) RECEIVE RECORD {( laTable )} RECEIVE VARIABLE ( variable ) SEND PACKET ( {docRef ;} paquet ) SEND RECORD {( laTable )} SEND VARIABLE ( variable ) SET CHANNEL ( port ; param ) SET CHANNEL ( opération ; nomFichier ) SET TIMEOUT ( secondes ) USE CHARACTER SET ( filtre {; typeFiltre} )