W&T connects
Interfaces for TCP/IP, Ethernet, RS-232, RS-485, USB, 20mA, glass and plastic fiber optic cable, http, SNMP, OPC, Modbus TCP, I/O digital, I/O analog, ISA, PCI

Application for the Web-IO Digital:

Control

Remote control of a model crane directly from the browser


Network

Definition of tasks

The application outlined here is a project work of one of our trainees. The main focus dealt with a feasibility study in which it was to be determined which bandwidth a DSL connection must have in order to transmit the pictures of a Web camera.

The observation object to be shown was a model-construction crane operable via the browser. Our application example deals exclusively with the control of the crane.

The solution

The crane has control electronics which actuate the swivel-up and swivel-down operations, the cable pull and the rotation of the crane. The outputs of a Web-IO were connected with the control electronic hardware of the crane.

For the functions of the Web-IO, a webpage was programmed which renders the crane operable via buttons and displays the live picture of the web-cam.

The whole thing was placed on the Internet via a DSL connection.

The details

  • 1. The digital outputs of a Web-IO were connected with the control electronic hardware of the crane.
    Step 1
  • 2. The Web-IO was plugged into a free Ethernet port and connected to a power supply.
    Step 2
  • 3. The Web-IO was assigned an IP address.
    Step 3
  • 5. The webpage was made accessible on the Internet via DSL.
    Step 5

What was realized here on a small scale naturally also works on a large scale.

Further practical examples: