Well I plumbed in the little RS485 transceiver into the BatSCI1 & BATSCI2 and logic grounds today and captured some BCM <> MCM comms data onto my laptop.
Problem is not knowing the baud rate/structure means it could all be garbage at the moment.
I tried various settings for the recieving software which was the demo version of
Data Logger. Advanced Serial Data Logger software - serial and RS232 port data collection and acquisition software | AGG Software
There was a fair bit of chat going on.
But I need to look at one packet/byte on my scope to see the structure and then set serial software accordingly.
Very neat little rs485/usb comms gadget should allow me to use my laptop to send test fake data to the mcm fairly easily.
www.solarvan.co.uk/insight/rs485gadget.jpg