1 of 1 people found this helpful
typically PLC's are not just a chip, there a SBC (Small Board with many chips including a microcontroller
given that, An Arduino or something would be a good place to start. once you have a design, the circuit can be "Hardened" to make it suitable for commercial use and also simplified as many parts on an Arduino will not be needed.
To help more than this, I would need to know more about what this control (PLC) is going to be expected to so, are there displays, keypads, other IO, temperature sensors or other sensors etc etc.
3 of 3 people found this helpful
There are PLC on Chip options such as the Intel/Altera SoC offering.
or the Divelbiss chips with on-board EZ LADDER® kernel
More information from Tim would be very helpful though.
Hi Peter Oakes
What is a Arduino
The appliance is a gas heater, its components which need to be controlled are below
240 volt pre heat element
240 volt fan
240 volt pressure switch
240 volt gas valve
K-Type thermal couple
a remote thermo stat will be used to switch the appliance on/off/low fire / hire fire
all the above need to work to a particular timed sequence and the thermal couple needs to monitor temperature
The boards i have seen which can carry out similar operations are a PCB with a logic chip on, with my very limited knowledge is the chip the brain which makes all the components work in sequence ? this would be the part which i need?