In industrial settings, high latency can cause the refresh request to "time out" before the data packet arrives. How to Force a ViewerFrame Mode Refresh
Some ViewerFrames use Java Applets or ActiveX (in older systems). If the refresh isn't working, you may need to clear the cache of the plugin itself rather than the browser.
If the script responsible for "polling" (fetching new data) crashes, the frame will stop updating regardless of your internet connection. viewerframe mode refresh
Instead of: http://camera-ip/viewerframe.cgi The system can be coded to call: http://camera-ip/viewerframe.cgi?lastUpdate=12345
A isn't always as simple as hitting F5. Depending on the software you're using—whether it's a security camera interface, a PLC (Programmable Logic Controller) web server, or a custom enterprise dashboard—triggering a refresh requires understanding how the frame handles data. In industrial settings, high latency can cause the
If the interval is too fast (e.g., every 100ms), the browser might get overwhelmed and "stick."
The browser thinks the content hasn't changed because the URL of the frame remains the same, so it serves a "frozen" cached version. If the script responsible for "polling" (fetching new
By changing those numbers (the timestamp), you trick the system into performing a because it views the request as a brand-new page. Final Thoughts