Embedded Web Server

  
 
 

The SoftPLC Web Server (Cat. No. SPZ-WEB) is an HTTP server that can be added as a software option to any SoftPLC® based system. The Web Server installs and runs in the SoftPLC CPU, there is no additional hardware required.

The SoftPLC Web Server supports HTML pages, Java, and more. Any web browser that supports Java can be used with the SoftPLC Web Server, and any HMTL development tool can be used to develop web pages for SoftPLC.

The web pages reside in the SoftPLC, normally on the flash disk. This includes the HTML source, images (eg: *.jpg, *.gif), applets (eg: *.jar), sound or video files. A common use of the web server is to create a page for users to access process or machine documentation files which reside in the SoftPLC (eg: *.pdf, *.dwf, *.txt).

Applications: SoftPLC's Web Server applications are limited only by your imagination. The three most common uses are:         return

Operator Interface --

Rather than purchasing a dedicated HMI or SCADA license for each system/user, create web pages to display production data or machine status, or to allow operators to make changes to machine operating parameters or select recipes. These pages can then be viewed on any web browser. Useful for both local in-plant as well as remote access over the internet!

    • No per user license fees - many browsers can connect simultaneously from any station on the network
    • No software licensing fees or annual support/upgrade costs
    • Minimal computer hardware requirements - the system only needs to support a web browser
    • SoftPLC supports multiple web sites to separate pages viewed by job function, etc.
    • SoftPLC includes an embedded firewall for secure access
    • SoftPLC's web server supports Java Servlets which have the advantage of being able to pass through firewalls without special access rules
System Documentation

SoftPLC has tremendous storage capacity. This makes it inexpensive and easy to store all the system documentation and tools you may need to maintain the machine/process - right in the controller! A web page with a menu of documentation choices can easily be created for user access to virtually everything needed to maintain the equipment. Store:

View Data Logs/Reports

With its extensive capacity, SoftPLC can easily become a data-logger and report generation system. Use LOGDATA ladder instruction(s) or a servlet to save time-stamped process values to a file. This file can then be viewed from a web page. Example file formats are *.csv, *.xml, and *.dbf.