Protocol ‘COMx - Online access’

This protocol can only be used, if CM574 is configured as a PLC. If configured as Communication Module within a PLC project, this protocol is not available.

See protocol description for the serial interfaces COM1 and COM2 Setting_COMx_Online_Access: Setting COMx - Online Access Setting COMx - Online Access.

If the baud rate of the interface is changed to another value, a corresponding gateway channel must be created. Example: COM1 is to be operated with 115200 baud and the protocol ‘Online access’.

  1. Configuration of COM1 -> Setting the baud rate to 115200 baud.

  2. Selection of the gateway channel -> e.g. COM4_19200 with baud rate 19200 baud.

  3. Login and download of user defined project (if required, create boot project).

  4. Logout -> Interface is changed to 115200 baud.

  5. Selection of the gateway channel -> e.g. COM4_115kB with baud rate 115200 baud.

  6. Login -> with 115200 baud.