Petr, Steve, QsB

import serial
import sys
import time

def testEncoder2():
    try:
        s = serial.serial_for_url('COM4', baudrate=230400, parity=serial.PARITY_NONE,
                rtscts=False, dsrdtr=False, xonxoff=False, timeout=1)
    except AttributeError:
        # happens when the installed pyserial is older than 2.5. use the
        # Serial class directly then.
        s = serial.Serial('COM4', 230400, parity=serial.PARITY_NONE, rtscts=False,
                          xonxoff=False, timeout=1)
    except serial.SerialException as (errStr):
        sys.stderr.write("Couldn't open the port %r: %s\n" %
                         ('COM4', errStr))

    s.write("W151\r\n")

    s.write("W0B1\r\n")

    s.write("W0C0\r\n")

    s.write("W0240\r\n")

    time.sleep(0.1)

    s.readline()

    s.write("S05\r\n")

    while True:
        if (s.inWaiting() > 0):
            break
    response = s.readline()
    print response

    while True:
        time.sleep(0.3)
        if (s.inWaiting() > 0):
            response = s.readline()
            print response

    s.write("W150B\r\n")

    s.close()

testEncoder2()