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Showing results for tags 'rxdu'.
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Hi! I would like to ask how could I send data from PC to CJ1M PLC, by SCU-41 module and RS232 cable, in order to activate an actuator (LED)? In my environment, I have a sensor that sends data from PLC to PC (I'm checking data, "HelloWrld" with Putty), with this configuration: And I have another section where I want to read the data from the PC in ordr to activate a LED I would like when I send for example a letter 'a' trough Putty, the LED activates. How could I do that? Thank you very much!
Hey everyone, I have a CJ1M PLC with a CJ1W-SCU21-V1 serial card. It is unit 6 and I am using port 1. I have bit 1659.06 ((1500 + 25 * Unit #) +9, bit 6) as "characters in buffer" but it never comes on (data is being received through the port successfully). It is on No-Protocol mode. Does anyone have any ideas as to how I can detect data in the buffer?
Dear members, I would like to ask you for advice. Currently I have begun to use serial communication for OMRON PLC with use serial communication module SCU41-V1. My first application with use TXDU instruction in program was succefully. But for my purpose I need also recieve any data from the COM port. So when I set RXDU by instruction manual... Nothing recieved after send data via my PC. Light indicator on PC front panel is blinking after I send any data to PLC, but RXDU does not get any data to store it for my D memory. Serial port 2; Unit: 3; I have checked proper version of my card but it seems to be good. Is necessary use any exactly format to send to COM port for RXDU? Can you please help me? Best Regards, Jiri
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?