August 2, 2018 – A web interface lets engineers and developers access data from Allen Bradley PLCs, including ControlLogix. The 460ETCWI-N2E interface from Real Time Automation leverages Industry 4.0 to aggregate and analyze PLC data from any web client.
The 460ETCWI-N2E helps users to monitor ControlLogix PLC data from Excel or pull table values into any industry-standard web client application.
The 460ETCWI-N2E is configured via browser-based configuration pages. Users identify the address of the ControlLogix PLC to be accessed, and the data tags that need to be read. Engineers and developers can then monitor those tags in Excel or issue standard HTTP GET instructions to move that data into the application.
In the GET, request either a JSON or XML data string containing tags for the configured data table entries. In XML, an example would be 523<\Speed105>. In JSON, an example would be “Speed105”:523 for the same data table entry. The JSON or XML tags can be accessed from any web application tool including Python, PSP and other similar tools.
