Functions of SCADA

S Bharadwaj Reddy
A SCADA system performs four functions: 1. Data acquisition 2. Networked data communication 3. Data presentation 4. Control These functions are performed by four kinds of SCADA components: 1. Sensors

OFF Delay Timer using PLC

S Bharadwaj Reddy
This article discusses about OFF delay timer instruction and its working principle using Allen Bradley Programmable Logic Controller (PLC) Ladder Logic. Timer OFF delay is to delaying the turning OFF

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