Barth STG600 Mini PLC Review





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Published on Sep 29, 2015

Another PLC product to review from RS-Components

This time an STG600 Mini PLC starter kit from Barth Elektronik GmbH


This is the smallest PLC I have reviewed to date and while it has a few limitations it is worth a look for many different automation applications for home, Maritime , Automotive, Commercial and even Industrial situations where having isolation or mains control is not needed or is supported via additional interfacing.
It works on a 7 to 32V DC supply but does not isolate its inputs or outputs from the supply or each other
it supports 10 inputs, 9 outputs has a USB interface and draws only 4mA with no loads turned on
8 of the 10 inputs are ADC enabled and fully support 0 - 10V and beyond, the other two support high-speed counters.
Loads up to 1.5A on are supported on 8 of its outputs and one additional output supports 2A even with 5KHz PWM.
Programming is via an intuitive windows graphical interface which can be downloaded for free and will only take a short while to have your first application up and running. It only took me a few hours to get to grips and have my first demo app up and running
The programming interface also supports macros or what I would term as modular programming where the programmer can develop independent sub control flows and then integrate them into a higher level application, hiding the lower level details and even though the PLC itself has nothing more than a status LED, when connected to a PC a rich UI can be shown animating your application and allowing user interaction even during run time.
for its price and size (10mm thick), this tiny PLC may be just what you’re looking for to control the home lighting, Festive lighting or even the heating or an alarm system but really is only limited by your imagination.
It is certified for industrial temperatures and beyond -40 to + 60C so it can even host a Canadian festive winter outdoor light show with ease...... Hmm that gives me an idea


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