Programmable controller (PLC) applications
Programmable controller is developed on the basis of electrical control technology and computer technology, and gradually developed into an industrial control device with microprocessor as the core, integrating automation technology, computer technology and communication technology into one. Transistor optocouplers, optical relays, high-speed optocouplers, gate drive optocouplers, and IPM interface optocouplers are needed on programmable controllers.

1. transistor optocouplers: HW81x, HW101x, HW35x, HW3Hx, QHW85x;
2. high-speed optocouplers: HW6N13x, HWM6xx, HW053x, HW063x;
3. optical relays: HW2xx, HW17x;
4. gate drive optocouplers: HW314, HW34x, HW350, HW31xx;
5. IPM interface optocouplers: HW48x, HW450x, HWM48x;