> But I think you have a supply problem. Your solution to use the same
> rectified and filtered stage for both 7805 and 7824 is almost curious !

I only have 2 sensors that are relevant to this control problem so I use
the same powersupply to keep out all other transients that could enter
else. They are located just next to this pcb. <500mm

> Why do you have used optocouplers if all grounds are common and +5 ( for
> microcontroller) and +24 ( for industrial process ) comes from the same
> place ?  +24V must be a floated supply to avoid noises from the process...

Oops.. theres an error in the schematic ! The +24V that is connected to the
optocouplers is _NOT_ supposed to come from the 24v onboard.. hrm
Tho, all it does is to go to the coils of 2 relays. Atlest it keeps some of the
transients from the coils off the pic's pins this way. (also theres protection
on the coils for the back emk)

> Also when all your led's will be all on, your 7805 will be warm
How about a heatsink, doesnt look like I need one tho.

/PJ

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