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  1. HI ,  Thanks a lot for the reply & help on previous topic. Now i setting up a new system with 2x CJ2M CPU13  and 2x SCU32 and the connection via 1000M RS485 cable. May i know the best communication to use for the serial communications?   Regards, TJ SHARON.
  2. Hi to all, I have two queries about CJ2M-CPU13. 1) Can i use the in built serial port (RS232C) to the GUI or HMI? 2) Can i use the in built serial port (RS232C) to connect two CJ2M-CPU13s? I have only limited experience and knowledge in the PLC. I would like to see a step by step instruction video or tutorial notes.  If any of you any information pls share and help me.   Appreciate all help and thanks.  
  3. RXDU issues

    I have a data logging process on a CJ1M CPU13 via RXDU command on port 2 of SCU41-V1 It has been working, but has stopped.  There are 2 identical machines.  Both Honeywell bar code readers work on 1 machine, while the "RD2" led stays lit on one machine, and wont complete the RXDU command.  On the working machine, it simply flashes quickly during data receive.  I have compared the program in both, and it is identical. Cabling from both machines have been tested - works on one, not on the other.  Even swapped out SCU41-V1 with same results, so I am pretty certain it is a setting in the main processor of the non-working unit.  I did a compare of SCU settings and they are identical. #0 is moved into C  #2213 is moved into C +1 on first cycle.  Unit number is 3 1594.06 never seems to complete, which is an open contact in series with A202.02 (N.O.) to trigger RXDU (255) A202.02 is value 1 1594.06 stays at 0 when I trigger 1594.06 via laptop, it sends garbage data once.     Any ideas?  
  4. Omron CJ1M-CPU13-ETN to .NET Framework

    Hello People, In my school we had an assignment to program a Sorting machine using an Omron PLC and CX-Programmer. Now we got the assignment to make an HMI that we can open on our own computer (Windows 8.1) so that we can control various things of our program, such as reading and writing bits, and other data (To the PLC obviously). Now I only have very little experience in reading and writing data from a PLC (Using a PC), I have used the libnodave library to connect to a Siemens S7-300 PLC. With this I managed to read and write bits, and also read and write data to a DataBlock. We wrote this program in Visual Basic 2013 using the .NET Framework with the libnodave library as an added extension. Now I have searched far and wide on the internet but have not come across any good examples of how to do this with an Omron PLC. So I hoped that I could get some advice from you guys. What I'm asking is if anybody here has maybe a link to a guide/ example program/ manual that could get me forward? And if I can easily get this done with Visual Basic, by adding an extension, could anybody tell me which extension this would be? And where I could find it? I appreciate any help. :D Thanks in advance, BitsNBytesRookie