Posted 6 Apr 2016 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? Share this post Link to post Share on other sites