Vies to answer first according to experimental design of PLC control system

Experimental purposes: 1, 2, further familiar with the use of the software master the simple logic programming method, the experimental requirements: control requirements: design a vies to answer first display control system, the system has three group of players, a host, three groups of vies to answer first button SB1, SB2 respectively and SB3, host reset button SB0, vies to answer first light HL1, HL2, HL3, control requirements are as follows: 1) , if competitors to answer when the host issues, need to first press the button on the table, who first vies to answer first, whose indicator. 2) , indicator, host press the reset button after SB0 light is put out to vies to answer first. Three, experimental equipment: 1, PLC controller experiment board 2, 3, digital input and output board 4, experiment steps: 1. 2 write PLC controller program according to the experiment requirement. According to the experimental circuit wiring. 3. Download debugging program. Five, the experiment report: 1, write the specific requirements of the buzzer control and logical relationship. 2, write input and output allocation table and program list and description
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