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View Full Version : Lost idea build a PLC trainer


Deer
June 24th, 2004, 12:15 PM
Hi All,

I would like to build a PLC trainer/simulator, I have Digital Input and Output, Analaog Input and Output (0-10 VDC, 4-20mA),RTD module, and High Speed module.
On the front panel PLC simulator there are:
1)Many push buttons that connected to digital input
2)Many pilot lamps that connected to digital output
3)Potensiometers that gives source 0-10VDC and 4-20 mA connected to Analog input
4)Digital displays that will show up value from analog output (example digital Amperemeter will show value when potensiometer 4-20mA was turned or Digital Voltmeter will displaying 0-10VDC when potensiometer 0-10VDC was turned).
5)PT 100 sensor that connected to RTD module
6)Encoder that connected to High speed module(simulating rpm motor with turning encoder by hand)

My question:
What is the architecture to showing temperature value and speed/rpm using digital displays?
Is it good to use Scaling Meter(Digital Display) that connected to analog output (this display will make scaling from 4-20mA to engineering unit)?

Your advice would be appreciated, thanks!

Deer

shooter
June 24th, 2004, 12:32 PM
I would make only very simple display, maybe even in bitmode or just simple, as it is read by normal plc. like hex or so.

on a display however (so in a scada system different story.
but a standard plc does only have simple lights, on a scada almost everything is possible.
i would make some simple screens, 1 for input 1 for output, 1 for registers, 1 for arithmetics, 1 for manual forced things 1 for communication.
but hey it is very basic a plc. however i do know several simulators so why invent the wheel again?
if so i am interested in result or as beta user.

jvdcande
June 24th, 2004, 02:13 PM
Deer,

our company has stopped constructing our own trainers. We found it better and cheaper to buy them from a firm called Lucas-Nülle (http://www.lucas-nuelle.de/278/Products/Training_Systems/Automation_Technology,_Process_Control,_Measuremen t_Technology/Automatisierungstechnik/Programmable_logic_controls/PLC_universal_application_simulator.htm) . They offer a very good price/quality rate and an excellent service. We couldn't do better and cheaper ourselves.

Of course there are other firms with equal offers.

Kind regards,