In our previous issue, we said a digital output module could be tested by using the PLC logic to force the output on and off then and observing the module’s response. If the module doesn't respond, ...
In the previous two issues of this newsletter, we looked at troubleshooting digital input modules. Basically, we looked for the presence or absence of a voltage. With analog modules, it's trickier ...
Jonathan Wilkins, of industrial automation components suppler European Automation, discusses the top five problems associated with programmable logic controllers (PLCs). Jonathan Wilkins, European ...
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