Siemens S7-200 Smart PLC Simple Quiz Buzzer Design Case
1. Design Requirements: 1. There are five buzzers A, B, C, D, and E. When the host presses the buzzer start button (I0.0), the buzzer indicator light (Q0.0) lights up, and the buzzer prompt sound (Q0.1) rings for 3 seconds. Only after the prompt sound ends can the buzzers be pressed. 2. Pressing the buzzer … Read more