I need someone to design a compact 12/24v PLC into a RasberryPI as the computer that will run 5 units, each unit will have a green and red function and each unit will also have a limit proximity switch incorporated into the circuit thats run by touch that will sound an alarm(reversing buzzer)80db and must log the time it activated into its memory and will send a txt message to the relevant people.
The 5 units will be hydraulic actuators (small) so proximity switches could be used to monitor each unit for its green red staus ??
I can draw a diagram of what i want if its confusing for you.......
Thanks and i look forward to hearing from you guys!