10        MODBUS   2 "9600b8pns1NONE"
30        DIM   RTU(10)
40        TMOUT   5000
110     ' PRINT   R_RTU(12)   /* n-char defined */
115       PRINT   R_RTU(0)        /* n-char not defined */
117       PRINT   R_RTU(Byt,1) R_RTU(Byt,2) /* Adrs Cmnd */
120       R_RTU   a b "WWBBL" RTU(0)