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Selecting a suitable optocoupler

Hi All,

I have to control a heating system using siemens s7-1200 PLC. The heating system can be controlled by switching it's power on/off. The rating of the system is 230V AC, 2000W. Therefore I need a suitable optocoupler to interface PLC with the heating system. I have a plan to implement hysteresis type control.  Sometimes, I might be needed a fast switching optocoupler if I use PWM output (0-10 VDC ) of PLC(PID control) to control the system.

How to choose a suitable optocoupler for my application? Please give some information model to select the suitable optocoupler from TI products.

Thank you.

Kind regards,

Gajan.K