This document provides a tutorial on how to create and use web servers and HTML5 user-defined pages with Siemens S7-1200 PLCs. It discusses getting started with the basic web server functionality, creating and customizing HTML5 user interface pages, and accessing PLC tags and data from the web pages. The tutorial contains information on settings, functions, and steps required to build web-based HMI interfaces for S7-1200 PLC systems.

1. https://www.dmcinfo.com/latest-thinking/blog/id/8567/siemens-s7-1200-web-server-
tutorial--from-getting-started-to-html5-user-defined-pages
srir$9641
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{"payload":[52491,17256],"responseBuffer":{"data":[52491,17256],"buffer":
[205,11,67,104]},"input":{"topic":"Holding
Registers","from":"ModbusRTU","payload":
{"unitid":"5","fc":3,"address":"3954","quantity":"2","messageId":"5c151dfd1c9d44
018032a3e8"},"queueNumber":0,"queueUnit":5,"queueUnitId":5},"_msgid":"df2bce9d.6
9f74"}