Simple Ladder Logic Program for car wash subscriptions
Budget: $15 – $25 USD
Below are the program functions needed to remotely turn on a car wash via a URL or app. Using a Click PLUS Plc. But I understand the program is written in simple ladder logic. https://www.automationdirect.com/adc/shopping/catalog/programmable_controllers/click_series_plcs/click_plus_plcs_(stackable_micro_modular)/cpus/c2-03cpu
1. Customer pulls up, opens APP or URL and scans QR code adjacent to the car wash’s pay station.
2. APP sends a xml message based on customer’s subscription type onto server with only a single number wash numbers 2, 3 or 4.
3. PLC receives the number and activates the corresponding wash output 2, 3 or 4. (We do the wiring inside the pay station and wire from the outputs to the terminals.)
4. Then, 2 seconds after any wash number is received 2,3 or 4, output #1 (the TOKEN signal) turns on for 1 second. (Activating the Token signal mimics a customer's payment)
IMPORTANT: The PLC is always ‘pinging’ the server every 10 seconds 24/7 looking for a wash number. Plus, because the voltages can be different in some pay stations between the outputs 2,3, 4 and the Token Signal, the PLC needs 2 commons just in case the voltages needs to be separated.
Lastly, I understand this program only needs about 8-10 rungs in the ladder logic.We are running a windows program on the server and the plc only needs to /receive a single number 2,3 or 4. Not sure if this requires some other protocol between the PLC and server.
I NEED THIS LITTLE PROGRAM BY AUG 16TH OR PLEASE DO NOT RESPOND
THNAKS DON
1. Customer pulls up, opens APP or URL and scans QR code adjacent to the car wash’s pay station.
2. APP sends a xml message based on customer’s subscription type onto server with only a single number wash numbers 2, 3 or 4.
3. PLC receives the number and activates the corresponding wash output 2, 3 or 4. (We do the wiring inside the pay station and wire from the outputs to the terminals.)
4. Then, 2 seconds after any wash number is received 2,3 or 4, output #1 (the TOKEN signal) turns on for 1 second. (Activating the Token signal mimics a customer's payment)
IMPORTANT: The PLC is always ‘pinging’ the server every 10 seconds 24/7 looking for a wash number. Plus, because the voltages can be different in some pay stations between the outputs 2,3, 4 and the Token Signal, the PLC needs 2 commons just in case the voltages needs to be separated.
Lastly, I understand this program only needs about 8-10 rungs in the ladder logic.We are running a windows program on the server and the plc only needs to /receive a single number 2,3 or 4. Not sure if this requires some other protocol between the PLC and server.
I NEED THIS LITTLE PROGRAM BY AUG 16TH OR PLEASE DO NOT RESPOND
THNAKS DON