Configuration¶

The following parameters are available in the configuration view of the COM port node:

Parameter	Value ranges	Meaning
Run on config fault	No	If this parameter is set to “Yes” the IEC application will not be prevented from switching to RUN state, independent from possibly existing configuration errors of the particular COM port.
Run on config fault	Yes
Baud rate	9600 baud/sec	Sets up the baudrate to use for the COM port.
	19200
	38400
	57600
	115200
Parity	None	Sets up the parity to use for the COM port.
	Odd
	Even
Data bits	5 data bits	Sets up the number of data bits to use for the COM port
	6 data bits
	7 data bits
	8 data bits
Stop bits	1 stop bits	Sets up the number of stop bits to use for the COM port.
Stop bits	2 stop bits	Sets up the number of stop bits to use for the COM port.
Flow control	No flow control	Allows to switch between different flow control modes (either RTS/CTS hardware or Xon/Xoff software or none). This setting is only valid for RS-232 serial interface mode. In case RS-485 is used for parameter “Serial interface”, flow control must set to “No flow control”. Otherwise a configuration error is triggered.
	Hardware RTS/CTS
	Software Xon/Xoff
Boot parameter Serial interface	RS-232	Allows to switch between RS-232 and RS-485. Due to technical reasons, it’s not possible to dynamically switch between the modes. This means, a reboot (or power cycle) of the PLC is required to activate the particular setting once changed.
Boot parameter Serial interface	RS-485