Industrial

Fri
12
May
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4 20 MA CURRENT LOOP SIMULATOR USING AN RTD PT100 TEMPERATURE TRANSMITTER

4 20 mA current loop simulator using an RTD PT100 transmitter. Loop powered or by onboard 24v battery

4-20 mA SIMULATORS

Analog signal transmission ( also digital sometimes ) using 4-20mA current loops is broadly used in industrial environments. Some of its greatest advantages are: high noise immunity, cheap twisted pair (not shielding necessary) and the possibility of transmitting over very long runs of cable without appreciable signal loss.

* Este articulo tambien esta disponible en Español haciendo clic aqui

Fri
10
Mar
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PANEL MOUNT 7 SEGMENT DISPLAY WITH EMBEDDED ARDUINO

Panel mount 7 segment display with embedded arduino

PANEL MOUNT 7 SEGMENT DISPLAY

Is not always an easy task to get a good looking finished project if it includes a 7 segment display!

The main problem to get an elegant finish is the tight tolerance needed for the rectangular hole cut where the display will be exposed, only accomplished using CNC machining or laser cutting services.

* Este articulo tambien esta disponible en Español haciendo clic aqui

Mon
02
May
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May the FORTH be with Opto22 PAC and Linux

Opto22 PAC programmed using FORTH in Linux

INDUSTRIAL CONTROLLERS: PAC,PLC & LINUX

Linux support for industrial hardware like PAC or PLC, in the case of the big and well known brands is basically non-existent. Some hardware is based on "exotic" architectures, however the vast majority have in their guts an x86 or ARM based system (Linux friendly architectures!), but the development and management tools remain developed for Windows operating system!

There are so many reasons (commercial, technical, philosophic) that perpetuates same situation. Searching on the web, we can find some PLC/PAC related applications developed for Linux, but practically all of them are communication drivers (for the open and well documented protocols!) , developed by enthusiasts

Tue
09
Feb
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Temperature measurement with RTD PT100 4-20mA transmitter and arduino

Picture of a RTD PT100 connected to a 4-20 mA transmitter sending data to a computer

RTD

In the industrial world where broad temperature ranges and harsh working environment are predominant, the use of Thermocouples and RTDs are very common. All of them have their respective pros and cons, (there isn't an absolute winner) the final application and working conditions are who decide which one is better in every specific case

* Este articulo tambien esta disponible en Español haciendo clic aqui

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