How a PLC do the Scaling for a Sensor ?
I am always surprised how an automation system like PLC or DCS does the scaling for a sensor ? or
I am always surprised how an automation system like PLC or DCS does the scaling for a sensor ? or
PLC outputs are of two types: 1. Relay. 2. Solid state. Relay outputs are mechanical contacts and Solid State outputs are like transistor, TRIAC.