This case uses PLC output(Y) as light control, and use traffic lights as an example.

1. PLC training case
Two-way traffic lights at the
crossroads
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2. PLC training case two-way traffic lights at the crossroads
1 FUZHOU FU CHANG WECON ELECTRONICS TECHNOLOGY CO., LTD.
1. Introduction
This case uses PLC output(Y) as light control, and use traffic lights as an example.
Figure 1
2. I/O list
Device Registers Description
Red light Y0 Red Light 1
Green light Y1 Green Light 2
Yellow light Y2 Yellow Light 2
Red light Y3 Red Light 2
Green light Y4 Green Light 1
Yellow light Y5 Yellow Light 1

3. PLC training case two-way traffic lights at the crossroads
2 FUZHOU FU CHANG WECON ELECTRONICS TECHNOLOGY CO., LTD.
3. Project

4. PLC training case two-way traffic lights at the crossroads
3 FUZHOU FU CHANG WECON ELECTRONICS TECHNOLOGY CO., LTD.
4. Description
When the PLC is powered on and x0 is ON, green light 2 is lit for 10s, and blink for 3s after that→
yellow light2 is lit for 2s and turned off→red light2 is lit for 12s and so on and so on.
When green light 2 is on/blinking or yellow light 2 is on, red light 1 is on, when red light 2 is on, green
light 1 is on /blinking or yellow light 1 on).
Version: V1.0.0
Date: Jan 2017