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RT 360 Networking of industrial controllers



  • Process control system
  • Networking of industrial controllers
  • Controller parameter setting via field bus system
  • Profibus DP field bus system


Technical Description

One of the aims of process automation is to monitor and control plant or plant components centrally from a computer. This task performed by a process control system.

This experimental unit demonstrates the operation of a process control system based on a simple application. The experimental unit consists of two industrial controllers interconnected via a field bus interface (Profibus DP) and an interface card with a PC. On the PC, an OPC (OLE for Process Control) server makes the controller data available to other programs under Windows for further processing. The process control software developed by GUNT on the basis of LabVIEW accesses the process data on the controllers and enables it to be visualised. The software also allows the controllers' parameters to be set. Various functions such as recorders and alarm logs enable a simple control room function to be simulated.

Two potentiometers permit the simulation of input signals for the controllers. The controlled variable, manipulating variable and reference variable data are delivered as standard signals at lab jacks, enabling the controllers to be integrated into real processes at any time.

The well-structured instructional material sets out the fundamentals and provides a step-by-step guide through the experiments.

Learning Objectives / Experiments

- function and structure of a process control system under Profibus DP 
  * Profibus DP field bus system
  * OPC server function
  * master / slave assignment
  * online controller parameter setting
  * reading control variables and displaying them online
  * configuring and displaying alarms



[1] experimental unit for networking of industrial controllers
[2] 2 digital controllers, configurable as P, PI or PID controllers, with field bus interface
[3] 2 signal generators
[4] Profibus DP interface card for PC
[5] OPC server and GUNT process control software under Windows Vista or Windows 7
[6] all process variables accessible as analogue signals at lab jacks

Technical Data

- configurable as P, PI or PID controller
- proportional gain Xp: 0...999,9%
- integral action time Tn: 0...3.600s
- derivative time Tv: 0...1.200s
Process variables as analogue signals: 0...10V
Signal generator: 0...10V
Connection of external instruments (e.g. oscilloscope, line recorder) via lab jacks

Dimensions and Weight
LxWxH: 450x450x150mm
Weight: approx. 10kg Required for Operation 230V, 50/60Hz, 1 phase or 120V, 60Hz/CSA, 1 phase

Scope of Delivery

1 experimental unit 
1 interface card
1 set of cables
1 software CD with driver software, OPC server and GUNT process control software
1 set of instructional material

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