import time
from pyS7 import S7Client
import pprint

LOOPS = 3
counter = 0
client = S7Client(address="172.16.3.231", rack=0, slot=2)
while counter < LOOPS:
    try:
        # Create a new 'S7Client' object to connect to S7-300/400/1200/1500 PLC.
        # Provide the PLC's IP address and slot/rack information

        # client = S7Client(address="172.16.4.220", rack=0, slot=2)
        # Establish connection with the PLC
        client.connect()

        # Define area tags to read
        tags = ["DB9,DBD0"]

        # Read the data from the PLC using the specified tag list
        data = client.read(tags=tags)

        print(data)  # [True, False, 123, True, 10, -2.54943805634653e-12, 'Hello']
    except Exception as e:
        pprint.pprint(e)
    finally:
        client.disconnect()
    counter += 1
    time.sleep(1)