dmargineau
Lifetime Supporting Member
Hello All.
I have a project that is pretty easy however, it involves over 1,000,000 analog inputs. It is a solar panel farm that has 200 inverters, that contain 25 panels each. The customer is requesting Allen-Bradley products, however it is designed. I have never worked with this much I/O in the past and I am hoping someone here has. I am not even sure I want to use a PLC here, since it isn't going to be controlling anything, merely reading data. I am not sure which SCADA system would be best, with this many tags. A one-minute sample rate is all they are requesting. Any and all advice would be greatly appreciated.
Thank you for your time.
The math does not quite add up:
200 X 25 = 5000 panels
1000000 / 5000 = 200 sensors/panel
Do you really need 200 temperature sensors for each panel?!
There are only 200 inverters and each VFD will simultaneously move 25 panels at a time; 5000 analog inputs for defining a single inverter application it is at least a 2 order of power overkill.
IMHO 10000 analog inputs will more than suffice.