import time
import snap7
import pprint

LOOPS = 5
counter = 0
while counter < LOOPS:
    try:
        plc = snap7.client.Client()
        plc.connect("172.16.3.231", 0, 1)
        pprint.pprint(plc.get_cpu_state())
    except Exception as e:
        pprint.pprint(e)
    finally:
        plc.disconnect()
    counter += 1
    time.sleep(1)