I have a camper at a remote location that uses a Xantrex C40 controller to charge (solar and wind) a 230AH battery bank. I have remote access via the internet to an Arduino controller and would like to monitor the status of the C40 getting the same information as presented on the CM meter. I read an old thread where NSASPOOK was doing something similar, but the the results were not posted.
From old thread:
"The current problem is interfacing with the XANTREX C40 controllers remote LCD display serial interface connection. It seems to be lowspeed 300 baud RS-422. They provide no help on the wiring or protocol but I have a 422 converter on order to dump the data-stream. With this data sent to the PIC I can then use the C40 charge status to switch cells instead of a timed/voltage method."
Any suggestions would be appreciated.
Buddy Helms
From old thread:
"The current problem is interfacing with the XANTREX C40 controllers remote LCD display serial interface connection. It seems to be lowspeed 300 baud RS-422. They provide no help on the wiring or protocol but I have a 422 converter on order to dump the data-stream. With this data sent to the PIC I can then use the C40 charge status to switch cells instead of a timed/voltage method."
Any suggestions would be appreciated.
Buddy Helms