PLC Basics and Voltage Sag Susceptibilities Fig. 2 shows a typical PLC I/O rack with a power supply, CPU, discrete input and output modules, and analog input and output modules. The following sections ...

This led to the PLC detecting logic level “0” instead of logic level “1.” As a result, the output relay was dropped when the UPS kicked on and the inputs could not be resolved. In all, three out of ...

It’s time to do a series on logic including things such as programmable logic, state machines, and the lesser known demons such as switching hazards. It is best to start at the beginning &#82… ...

Agilent has added Microsoft Visual Basic for Applications into a logic analyzer application, called the advanced customization environment for logic analyzers, to enable engineers to customize how ...