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Why would a company want to use a PLC over an RTU?

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تم إضافة السؤال من قبل Mohanad Fakhar Aldin , Electrical,SCADA,Security Systems Engineer , AL JABER AND PARTNERS
تاريخ النشر: 2015/11/24
MOHAMMED SALAUDDIN RAZZAQUI
من قبل MOHAMMED SALAUDDIN RAZZAQUI , PROJECT MANAGER , ASSYSTEM RADICON

If you need a stand-alone controller with power for your application, a PLC is likely your best choice. But be aware that some level of programming skills will be required. If you need a device to control multiple processes, without direct intervention from a controller or master, an RTU can provide many of the advanced control functions needed, as it is basically a direct interface between the field sensors, actuators and a central control unit.

Mohanad Fakhar Aldin
من قبل Mohanad Fakhar Aldin , Electrical,SCADA,Security Systems Engineer , AL JABER AND PARTNERS

programmable logic controller (PLC) is much cheaper and more flexible with programming. PLCs have been replacing RTUs because they are also easier to troubleshoot and have more sophisticated controls than RTUs.

Dalal Salaim
من قبل Dalal Salaim , Supervisor Engineer , Ministry of Electricity and water

I guess because of the difference in programming. PLC are digital and can have multiple inputs and outputs. While RTUs need SCADA, not preferable.

RTU considered better when you need to control from distance or wireless.

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