MEI-23106: Introduction to Industrial Informatics Assignment Information retrieval from industrial controllers

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Introduction Service-enabled devices start to be deployed at

the factory floor. These give possibility to develop

monitoring applications following same

communication standards. This assignment is

based on monitoring a unit production system

from remote location via application server and

communication with the web services of the

system.

Methodology The assignment has been done with union of

several technologies i.e. NODE.js, JavaScript, PHP,

HTML, SOAP, SVG, WSDL etc. In the runtime

environment Node.js I have used JavaScript

combining it with PHP, HTML, SOAP and SVG.

Assignment Architecture The assignment is mainly concerned about

communicating with Industrial Controller and

information retrieval and to develop a real time

monitoring system. In this assignment, a

monitoring system has been developed using web

services to gather information from Robot work

cell and to present it in a web browser.

The architecture can be defined as the below

UML Diagram UML diagrams has been drawn by Visual

Paradigm V12.0. A Use Case Diagram and a

Sequence Diagram has been used for preparing

the blue print of the program.

Use Case Diagram

Fig; Use Case Diagram

Sequence Diagram

Fig Sequence Diagram of monitoring System

Coding The whole coding has been done in NODE.js

syntax in a java script file. PHP, HTML, SVG are

combined with JavaScript and SOAP has been

integrated inside it.

Web interface design To build a monitoring system, one of the very

important stage is to design a user friendly and

easily understandable interface. Graphical

WEB BROWSER

WEB SERVER / APPLICATION SERVER

INDUSTRIAL CONTROLLER (INICO S1000)

MEI-23106: Introduction to Industrial Informatics Assignment Information retrieval from industrial controllers

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representation can be a very good solution for

this. SVG or Scalable Vector Graphics has been

used in web interface for visualization of the

pallet status on conveyor and robot status.

Node.js programming for client server Using Node.js a client server / an application

server has been created. Using SOAP technology

communication with the controller has been

done. SOAP makes a request through the server

to the web service of the controller/ WSDL. WSDL

process the request for the controller and gets a

result from the controller and deliver it to the

server for client use.

Results The whole code has been saved in a JavaScript

file according to NODE.js syntax and run in

NODE.js.

There is three outcome from this monitoring

system, one operation of the Robot and two

operation of the conveyor.

The monitoring system consists of

Conveyor Status

Robot Status

Pallet location among five zones.

The operation of the robot is

When there is a pallet in zone 3, the

robot will be invoked to process the

pallet of zone 3.

The two operations of the conveyor is

Transfer out request from the previous

conveyor

Transfer request from zone 1 to zone 3

Web Interface The web interface is as follows