The Setting ‘COMx - Online access’

If ‘COMx - Online access’ is selected, the interface parameters are set to the following fixed values:

Baudrate=19200 Baud, Stop bit=1, Parity=none, Data bits=8

Note

As of firmware version V1.1.7 and Control Builder version V1.2, the parameter “RTS control” is set to “telegram”. This also allows programming via RS-485 (for example using an according converter). For AC500 PM55x and PM56x CPUs, the parameter “RTS control” is set to telegram” by default. This allows programming via RS-485.

The parameters are read-only (not editable).

The serial interface settings must match the settings for the serial gateway driver in the Control Builder. Link to Programming and Testing / Serial Driver Programming and Testing).