I am trying to connect to PLC to read certain variables from my linux server. However,I encounter an error of "Port 0x353 is out of range". I am not able to solve this.
Additional details:
Ubuntu 20.04 LTS
Code:
import pyads CLIENT_NETID = <net_id>CLIENT_IP = <client_ip>TARGET_IP = <target_ip>TARGET_USERNAME = <username>TARGET_PASSWORD = <password>ROUTE_NAME = "route-to-my-plc"pyads.add_route_to_plc( CLIENT_NETID, CLIENT_IP, TARGET_IP, TARGET_USERNAME, TARGET_PASSWORD, route_name=ROUTE_NAME)plc = pyads.Connection(<net_id>, 851, <target_ip>)plc.open()i = plc.read_by_name("TransportOp_GVL.liftCurrentFloor")Error print:
>>> i = plc.read_by_name("TransportOp_GVL.liftCurrentFloor")2024-03-15T04:07:27+0000 Warning: Port 0x353 is out of range2024-03-15T04:07:27+0000 Warning: No response pendingTraceback (most recent call last): File "<stdin>", line 1, in <module> File "/home/ubuntu/.local/lib/python3.8/site-packages/pyads/connection.py", line 537, in read_by_name plc_datatype = self._query_plc_datatype_from_name(data_name, File "/home/ubuntu/.local/lib/python3.8/site-packages/pyads/connection.py", line 181, in _query_plc_datatype_from_name info = adsGetSymbolInfo(self._port, self._adr, data_name) File "/home/ubuntu/.local/lib/python3.8/site-packages/pyads/pyads_ex.py", line 912, in adsGetSymbolInfo symbol_info = adsSyncReadWriteReqEx2( File "/home/ubuntu/.local/lib/python3.8/site-packages/pyads/pyads_ex.py", line 774, in adsSyncReadWriteReqEx2 raise ADSError(err_code)pyads.pyads_ex.ADSError: ADSError: timeout elapsed (1861). Troubleshooting steps taken:
Found a github issue tread on a similar issue. However, I dont not really understand how to troubleshoot. It is mentioned that TwinCAT3 Scope is sending data packets over TCP connection. Do I have to connect to the PLC and open up the TwinCAT3 software to turn off the Scope server? I am new to PLC programming so I am not sure about this aspect.