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Appendix
A.3 Alternative user interfaces
WebAPI communication is independent of the target hardware on which the user interface
will run. This means that you have numerous options. For example, you can program .NET
applications for the PC or apps for mobile end devices.
HTML pages with JavaScript in particular represent one special option. You can adapt the
HTML pages to your needs and upload them to the optical readers. You can access these
HTML-based, installed user interfaces from any Web browser.
An example of an HTML-based, user-defined user interface is already stored on optical
readers as of firmware V5.1. Based on this example, modifications or expansions can then
be made.
Requirements and notes on the development of user-defined user interfaces
● The optical reader must have firmware V5.1 or higher.
● The documentation of the standardized WebAPI communication does not ship with the
product. It is intended for experienced developers and requires experience in Web-based
development of user interfaces.
● You will find information on uploading/downloading and access protection of the user-
defined user interface in the online help under the entries "Maintain" and "Connections"
(keyword "Custom GUI").
A.3.2
Integrated HTML pages
The HTML pages integrated on the optical reader provide the opportunity of obtaining
important information from the optical reader and monitoring the recognition process in many
environments.
Benefits
● Independent of the operating system and the Web browser you are using.
● Does not require Java Runtime on the visualization device.
● Requires little memory and performance on the visualization device.
● Can be integrated easily in existing applications.
● Display normally available in three languages, language can be changed online.
Overview of available URLs
The following URLs provide access to the pages described below in their respective
language, example URL: http://<IP address of optical reader>/peeklive.html
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Operating Instructions, 05/2019, C79000-G8976-C494-02
SIMATIC MV500
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