openopc

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when use opc.read(tags) get a error "Segmentation fault"

xtddw

The openopc developed for python 3.4+ is very interesting. However i could not find out the installation procedure. How can do it?

2

I am using Anaconda python 3.4

salishmaharjan

NameError: name 'pythoncom' is not defined

2

PlatForm : Windows 7 X64 , Python version : 3.7 when I use : import OpenOPC opc = OpenOPC.client() Pycharm raise an error "NameError: name 'pythoncom' is not defined".

baoliwen929

OpenOPC.open_client: ConnectionRefusedError + remote machine running OpenOPC Gateway Service

1

I have the following set up: - On remote machine (`10.4.8.71`): both [MatrikonOPC Simulation Server](https://www.matrikonopc.com/products/opc-drivers/opc-simulation-server.aspx) and the OpenOPC Gateway Service running - On local machine: run the below snippet -...

jamesbraza

Intermittent read error occurs. Help solve the problem

5

Intermittent read error occurs. Help solve the problem 2023-01-18 00:00:35,292 ERROR Connect: -2146959355 Traceback (most recent call last): File "C:\Users\Freelancer\PycharmProjects\OPC_DATA\venv\lib\site-packages\OpenOPC.py", line 223, in connect self._opc.Connect(s, opc_host) File "C:\Users\FREELA~1\AppData\Local\Temp\gen_py\3.8\341A7851-5DEA-4022-B0D6-F9954AF9273Dx0x1x0.py", line 233,...

DanilaX1

```python import OpenOPC opc: OpenOPC.client = OpenOPC.open_client("localhost") ``` Is the client thread safe for reads/writes? Or should I protect my client with a `threading.Lock`?

jamesbraza