Problem connecting to ControlLogix5583E

[AlexRegev]

Hi,

I am trying to connect to a ControlLogix5583 using the CIPDriver.
when I try to list the identity i get the following info on my PLC:

from pycomm3 import CIPDriver
print(CIPDriver.list_identity('192.168.1.2'))

Output:
{'encap_protocol_version': 1, 'ip_address': '192.168.1.2', 'vendor': 'Rockwell Automation/Allen-Bradley', 'product_type': 'Programmable Logic Controller', 'product_code': 166, 'revision': {'major': 33, 'minor': 11}, 'status': b'p1', 'serial': '00c8ffbd', 'product_name': '1756-L83E/B', 'state': 3}

When I try to open the connection I see the following information:
driver = CIPDriver('192.168.1.2')
driver.open()
print(driver)

Output:
Device: None, Revision: -1.-1

And if I try to read the module info I get this exception:
driver = CIPDriver('192.168.1.2')
driver.open()
print(driver.get_module_info(0))

Output:
Traceback (most recent call last):
File "C:\Users\AlexRegev\AppData\Local\Programs\Python\Python38\lib\site-packages\pycomm3\cip_driver.py", line 299, in get_module_info
raise ResponseError(f"generic_message did not return valid data - {response.error}")
pycomm3.exceptions.ResponseError: generic_message did not return valid data - Connection failure (see extended status) - Unconnected message timeout (01, 204)

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
File "C:/git/opcua-client-gui/test/simple_test.py", line 8, in <module>
print(driver.get_module_info(0))
File "C:\Users\AlexRegev\AppData\Local\Programs\Python\Python38\lib\site-packages\pycomm3\cip_driver.py", line 302, in get_module_info
raise ResponseError("error getting module info") from err
pycomm3.exceptions.ResponseError: error getting module info

Can you help me understand what could be the problem? am I missing some configuration?

Thanks a lot for your help.

Alex

[AlexRegev]

I found the issue, I wasn't addressing the PLC slot (located in slot 1).

that worked for me.

with LogixDriver('192.168.1.2/1') as plc:
print(plc.get_tag_list())

Thanks

[ottowayi]

Glad you figured it out. The CIPDriver is for non-PLC devices, the LogixDriver is the one you want. It makes some assumptions about the device that is specific to PLCs and has the services you'd want for reading/writing tags and stuff. Also, the /1 is shorthand for /backplane/1 and only the LogixDriver supports it. You'd need to use the full path (192.168.1.2/bp/1) for it to work in the CIPDriver