switch baudrate about iec62056-21

[Krolken]

Hi.

What are you trying to do? Why do you need to reopen the serialport?

[youserj]

def switch_baudrate(self, baud: int) -> None:
"""
Creates a new serial port with the correct baudrate.

    :param baud:
    """
    if self.port is None:
        raise TransportError("Serial port is closed.")

    logger.info(f"Switching baudrate to: {baud}")
    self.port = self.port = serial.Serial(
         self.port_name,
         baudrate=baud,
         parity=serial.PARITY_EVEN,
         stopbits=serial.STOPBITS_ONE,
         bytesize=serial.SEVENBITS,
         writeTimeout=0,
         timeout=self.timeout,
         rtscts=False,
         dsrdtr=False,
         xonxoff=False,
     )

it metod from class SerialTransport

I use:
Port_struct['client'].connect()
Port_struct['client'].startup() #'/ XXX Z CR LF '
Port_struct['client'].ack_with_option_select('readout') #mode read ' ACK 0 Z 0 CR LF'

[Krolken]

Switching of baudrate is automatic. in ack_with_option_select.

If you want to do a standard-readout use the method client.standard_readout

def standard_readout(self):
        """
        Goes through the steps to read the standard readout response from the device.
        """
        self.startup()
        self.ack_with_option_select("readout")
        logger.info(f"Reading standard readout from device.")
        response = self.read_response()
        return response