Pyserial Issues with Python3.7 and Fluke Multimeter

[jfisher930]

[quote='DeaD_EyE' pid='51872' dateline='1530950771']

If you're able to open the port again, then send bytes and not a str.

ser.write(b'SENS:VOLT:RANG 10 \r\n')

or

ser.write('SENS:VOLT:RANG 10 \r\n'.encode())

I have tried both of the suggested approaches and it just causes a loop to occur at the readline for whatever reason.

Updated Code:

import serial
import time
 
ser = serial.Serial()
ser.baudrate = 9600
ser.bytesize = 8
ser.stopbits = 1
ser.xonxoff = 0
ser.rtscts = 0
ser.timeout = None
ser.port = "COM4"  
parity=serial.PARITY_NONE
 
ser.open()
print ("Connection to Fluke successful")
ser.write('MEAS:VOLT:RANG 10 \r\n'.encode())
time.sleep(2)
print ("Time Sleep successful")
print(ser.readline())
ser.close()
print ("Connection Severed")

Output:
Connection to Fluke successful
Time Sleep successful