OpenOPC | This is a clone of http : //openopc.sourceforge.net | Database library

by sightmachine Python Version: Current License: Non-SPDX

X-Ray Key Features Code Snippets Community Discussions(3)Vulnerabilities Install Support

kandi X-RAY | OpenOPC Summary

OpenOPC is a Python library typically used in Database applications. OpenOPC has no bugs, it has no vulnerabilities, it has build file available and it has low support. However OpenOPC has a Non-SPDX License. You can download it from GitHub.

This is a clone of with modifications to make it use distutils.

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Quality

Security

License

Reuse

Support

OpenOPC has a low active ecosystem.

It has 82 star(s) with 55 fork(s). There are 82 watchers for this library.

It had no major release in the last 6 months.

There are 9 open issues and 2 have been closed. On average issues are closed in 1 days. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of OpenOPC is current.

Quality

OpenOPC has 0 bugs and 0 code smells.

Security

OpenOPC has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

OpenOPC code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

OpenOPC has a Non-SPDX License.

Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

Reuse

OpenOPC releases are not available. You will need to build from source code and install.

Build file is available. You can build the component from source.

Installation instructions are not available. Examples and code snippets are available.

OpenOPC saves you 714 person hours of effort in developing the same functionality from scratch.

It has 1649 lines of code, 70 functions and 5 files.

It has high code complexity. Code complexity directly impacts maintainability of the code.

Top functions reviewed by kandi - BETA

kandi has reviewed OpenOPC and discovered the below as its top functions. This is intended to give you an instant insight into OpenOPC implemented functionality, and help decide if they suit your requirements.

Check if a task exists
Return a list of all the available modules
Returns the free memory free memory in bytes
Return information about the memory
Return the free disk free in bytes
Return the free disk space
Return the amount of memory for the given image
Return the percentage of free memory
Returns the total number of bytes in bytes

Get all kandi verified functions for this library.

OpenOPC Key Features

No Key Features are available at this moment for OpenOPC.

OpenOPC Examples and Code Snippets

No Code Snippets are available at this moment for OpenOPC.

Community Discussions

Trending Discussions on OpenOPC

How to write an array tag in a VARIANT structure on an OpenOPC server

How to fix the error 'TypeError: can't pickle time objects'?

converting OPC DA to REST API

QUESTION

How to write an array tag in a VARIANT structure on an OpenOPC server

Asked 2021-Dec-07 at 16:42

I'm trying to communicate with an OPC DA server and need to write in a tag which is in an array format. We can connect with a simulation server, read tags (int, real, array) and write tags (int, real, str). The problem comes when we need to write in an array tag. The developper of the OpenOPC library (Barry Barnreiter) recommand to use a VARIANT variable because OPC "expect to see a Windows VARIANT structure when writing complex objects such as arrays".

I did install Pywin32 (build 217) as suggested here.
I tried to send a simple integer instead of an array in a VARIANT structure.

Here's the code:

...

ANSWER

Answered 2021-Dec-05 at 19:56

You need to upgrade the python to 3.9 and Pywin32 to Build 302. In addition, you need to install the OpenOPC-Python3x 1.3.1.

Source https://stackoverflow.com/questions/70118083

QUESTION

How to fix the error 'TypeError: can't pickle time objects'?

Asked 2020-Oct-28 at 07:20

I am using the OpenOPC library to read data from an OPC Server, I am using 'Matrikon OPC Simulation Server', when I try to read the data it sends me the following error:

...

ANSWER

Answered 2020-Oct-28 at 07:20

I solved this issue by adding sync=True when calling opc.read()

CODE:

Source https://stackoverflow.com/questions/62563931

QUESTION

converting OPC DA to REST API

Asked 2020-Sep-08 at 09:06

How do I convert OPC DA protocol in to Rest API calls? I was looking at the OpenOPC library https://github.com/mkwiatkowski/openopc. Will I have to write the Rest API part of the architecture myself? Are there libraries that already have this conversion?

...

ANSWER

Answered 2020-Sep-08 at 09:06

There's the library https://github.com/matzpersson/opc-rest-api From the description of the project:

Python Rest API using OpenOPC to provide direct API access for any OS platform. This proxy has to be installed on a Windows box with Python and OpenOPC installed to provide a API Gateway to other platforms.

The description is here http://headstation.com/archives/using-opc-rest-api/ From that it looks like you don't need to write the Rest API part yourself.

The library has been created by https://stackoverflow.com/users/6833456/matz see question OpenOPC Gateway Running use Client in OsX or Linux

Source https://stackoverflow.com/questions/63656895

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install OpenOPC

You can download it from GitHub.
You can use OpenOPC like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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