c# - Connecting to Weight Scale through RS232 -


i have been cracking head trying figure how read weight scale, i'm kind of new c# , have never dealt com ports before, put code examples found online , other articles have been researching. i'm kind of stock, appreciate if there give me light of why code not displaying anything. scale i'm using nv-1.5r cci companies. i'm connecting trough rs232 port using db9 female female null modem cable. code have far:

using system;  using system.io.ports; using system.collections.generic;  namespace serialcombuffering { class program {     serialport com = new serialport(serialport.getportnames()[0],       9600, parity.none, 8, stopbits.one);     list<byte> bbuffer = new list<byte>();     string sbuffer = string.empty;      static void main(string[] args)     { new program(); }      program()     {         com.datareceived +=           new serialdatareceivedeventhandler(com_datareceived);         com.open();          console.writeline("waiting incoming data…");         console.readkey();     }      void com_datareceived(object sender,       serialdatareceivedeventargs e)     {         // use either binary or string technique (but not both)          // buffer , process binary data         while (com.bytestoread > 0)             bbuffer.add((byte)com.readbyte());         processbuffer(bbuffer);          // buffer string data         sbuffer += com.readexisting();         processbuffer(sbuffer);     }      private void processbuffer(string sbuffer)     {         console.writeline(bbuffer);         console.writeline(sbuffer);         console.readkey();     }      private void processbuffer(list<byte> bbuffer)     {         // in byte array useful information         // remove useful data buffer     } } }

i'm not sure else after this, hoping display , figure out there, whenever run literally nothing. nice if kind of guide me trough next. , appreciate collaboration before hand!

here's have related scale documentation enter image description here


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