TN - 1483 Embedding Axis Camera Views in InTouch

Description

This article from InSource shows how to embed Axis camera views in an Aveva InTouch HMI application.

• Author:  Rich Brooks
• Published:  3/4/2025
• Applies to:  Aveva InTouch HMI 2023 R2 SP1 or higher

Details

Live camera streams may be embedded in an InTouch application using the WebWidget.

Create a new Industrial Graphic symbol.  Drag and drop the WebWidget onto the canvas.

The WebWidget has a single property named URL.  Build a data change script such as the following to define the URL.  URL_String, Cam_User, Cam_PW, and Cam_Num are message tags that are passed in from InTouch.  The Cam_User and Cam_PW are the login and password for the camera.  Cam_IP is the camera IP address.  Cam_Num is the camera number.  Set it to default to "1" if not defined.

dim URL_String as string;

URL_String = "https://" + Cam_User + ":" + Cam_PW + "@" + Cam_IP + "/axis-cgi/mjpg/video.cgi?camera=" + Cam_Num + "&resolution=1920x1080&fps=15";

Cam_URLPB = URL_String;

The syntax for the URL is "https://<user name>:<password>@<ip address>/axis-cgi/mjpg/video.cgi?camera=<camera number>&resolution=1920x1080&fps=15"

The camera number and resolution are optional.  1080p is the minimum resolution for some cameras.  15 frames per second is the industry standard.   

The following is a screen capture of the streaming video from one of the cameras.

A  preset name may be sent to a PTZ camera using the following command.  Cam_PresetName is and InTouch tag used to pass the configured preset name for a camera view.  This is sent following the first URL string described previously when there is a desired PTZ camera preset view required.

URL_String = "https://" + Cam_User + ":" + Cam_PW + "@" + Cam_IP + "/axis-cgi/com/ptz.cgi?gotoserverpresetname=" + Cam_PresetName;  

The syntax for the URL is "https://<user name>:<password>@<ip address>/axis-cgi/com/ptz.cgi?gotoserverpresetname=<camera preset name>"