Answer / sivarama prasad.kokola

The signal isolator is used to provide galvanic isolation from one signal (input) to another (output) and usually combines the converter function. The isolator input, output and power supply are electrically isolated from each other making these units ideal for solving signal incompatibility and earth loop problems during process control system commissioning. This communication and broadcasting equipment come in three versions such as input signal powered, output loop powered and externally powere

hi... i'm about to learn siemens plc i came across following question in my mind ... plr ans 1. hw motor operated by plc 2. hw drive operated by plc explain dis by both ladder logic diagram and hardware config , connection

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