The current baud rate could not be determined in CR0020 IFM with maintenance tool

  • engrahman - 2024-05-21

    Hello everyone, im working with IFM CR0020 controller via RS232 protocol where im trying to connect it to my PC but, every time when im using the maintenance tool to identify the device i get the error "The baud rate could not be determined" i have tried to change the cable of RS232 with different types but the error presist, any idea how to fix it


    Last edit: engrahman 2024-05-21
  • dekelec - 2024-07-09

    It could be a problem with the cable pinout on either side:

    9 pin D-SUB connector (male) - PC side
    Pin Potential:
    1 n.c.
    2 RxD
    3 TxD
    4 n.c.
    5 n.c.
    6 GND
    7 n.c.
    8 n.c.
    9 n.c.
    Shell Shield

    Check if TxD and RxD cross between pins 2 and 3 (what is the Recive signal/wire to one device it's a Transmit signal/wire for the othe device)

    or with COM port settings:

    Bits per second: 9600
    Data bits: 8
    Parity: None
    Stop bits: 1
    Flow controll: None


    Last edit: dekelec 2024-07-09

Log in to post a comment.