def discoverPLCs(): # Function to discover any PLC on the network
ips, slots, progName = [], [], []
try:
discovery = CIPDriver.discover() # Return list of all CIP devices on the network
for device in discovery: # Go through discovery list and append any PLC#'s to a list
if device['product_type'] == "Programmable Logic Controller":
ips.append(device['ip_address'])
if len(ips) > 0: # Print the discovered PLC's, if there are any
ips.sort() # Sort the IP address in ascending order
table = Table(box=box.ROUNDED) # Create table
table.add_column('#', justify='center') # Add column
table.add_column('Device Type', justify='center') # Add column
table.add_column('IP Address', justify='center') # Add column
table.add_column('Slot #', justify='center') # Add column
table.add_column('Program Name', justify='center') # Add column
for i, ip in enumerate(ips): # Add row for each PLC discovered
slots.append('Unknown')
progName.append('Unknown')
for slot in range(1, 18):
try:
plc = LogixDriver(f'{plc}/{str(slot)}', init_tags=False)
if plc.open():
slots[i] = slot
progName[i] = plc.get_plc_name()
plc.close()
break
except:
continue
table.add_row(str(i+1), 'Programmable Logic Controller', ip, str(slots[i]), progName[i])
print(table)
else:
print("No PLC's discovered on the network")
except Exception:
traceback.print_exc()
def test_discover():
from pycomm3 import CIPDriver
devices = CIPDriver.discover()
expected = [
{'encap_protocol_version': 1, 'ip_address': '192.168.1.237',
'vendor': 'Rockwell Automation/Allen-Bradley', 'product_type': 'Communications Adapter',
'product_code': 185, 'revision': {'major': 2, 'minor': 7},
'serial': '73015738', 'product_name': '1763-L16BWA B/7.00', 'state': 0},
{'encap_protocol_version': 1, 'ip_address': '192.168.1.236',
'vendor': 'Rockwell Automation/Allen-Bradley', 'product_type':
'Communications Adapter', 'product_code': 191, 'revision': {'major': 20, 'minor': 19},
'serial': 'c01ebe90', 'product_name': '1769-L23E-QBFC1 Ethernet Port', 'state': 3},
# {'encap_protocol_version': 1, 'ip_address': '192.168.1.125', 'vendor': 'Rockwell Software, Inc.',
# 'product_type': 'Communications Adapter', 'product_code': 115, 'revision': {'major': 12, 'minor': 1},
# 'serial': '21ac1903', 'product_name': 'DESKTOP-907P98D', 'state': 255}
]
# status can change based on number of connections or other reasons
# just check to make sure it has a value then remove it from the
# rest of the device info
# for device in devices:
# assert 'status' in device
# del device['status']
# assert device in expected
for device in devices:
assert 'ip_address' in device
assert 'vendor' in device
assert 'product_type' in device
assert 'product_code' in device
assert 'revision' in device