Node-Red

// en entrée on reçoit msg
// la trame est dans payload

msg.payload.replace("\r", "");
// les données sont séparées par un ';'
var datas = msg.payload.split(";");
// on crée un message pour l'affichage
var message = "Trame : " + msg.payload + " -> Type : " + datas[0] + " [Data 1 = " + datas[1] + "] [Data 2 = " + datas[2] + "] [ Data 3 = " + datas[3] + "]";
// on réinitialise msg
var msg={};
// on met le message dans payload pour le bloc suivant
msg.payload = message;

// en sortie on retourne msg
return msg;

var trame = {};
trame.payload = ""

trame.payload += "$C;on";

return trame;

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