OPC-HTTP Gateway - easy-to-use and secure bridge between your web server pages and OPC servers
For Windows 2000 - Windows 11 (2022) (incl. Server, x86 and x64). Latest version: 2.0.7 build 204. February 4, 2025.
Brief description:
This program implements a simple OPC-HTTP gateway and allows your web server pages to interact with OPC servers through secure channels. The program acts as an HTTP server and an OPC DA1, DA2, DA3 and UA client at the same time. It translates each HTTP(S) request into a corresponding call to an OPC server.
What problems can be solved with OPC HTTP Gateway?
Allows your web-software running under Linux to read data from an OPC server running on a Windows machine. The web-software can get a tag tree and select tags to be read.
Getting started is easy. OPC HTTP Gateway is ready!
After the installation process, you need to configure the gateway. Please refer to the documentation.
Screenshot:
Features:
Retrieving data from one or several OPC servers simultaneously. You may use the gateway to connect and read data from several OPC DA & OPC UA servers at the same time.
Easy to use. OPC-HTTP Gateway has a built-in HTTP server. You do not need any 3rd party HTTP server on a computer with Windows and OPC servers.
Authorization. You may limit access to the gateway. Only authorized users and IP addresses will be allowed.
JSON. The gateway returns all responses in the JSON format that can be easily parsed and used in web applications or AJAX applications.
GET/POST. The gateway accepts standard GET/POST requests.
WebSocket. The gateway can work as the WebSocket server. It allows receiving instant notifications on your web page when a value changes in the OPC server.
SSL. The web application can connect to the OPC gateway using SSL certificates and a secure channel.
OPC servers list. The web application can get a list of OPC servers from the specified host.
Tag tree. The web application can get a tag tree from each OPC server.
Read/write. You can read OPC tag values and write a new value to an OPC tag.
Service mode. OPC-HTTP Gateway can be automatically launched as a service even before any user logs on.
Various OS. The program works on all Windows versions starting from Windows 2000, including servers and x64.