In Part 1 of this two-part series, we explored PLC basics and voltage sag susceptibilities. In this segment, we present PLC voltage sag test results along with guidelines for making PLC systems more ...

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 ...