Just wondering who here is running a Sevcon controller? If anyone is interested I've cracked the mystery of the Sevcon CAN Calibrator and have a fully functioning emulation program. It should work with any Powerpak or Micropak, including series and sepex versions. It probably works with anything that uses the Sevcon CAN Calibrator p/ns 662/14022, 662/14030 and (guessing) 662/14063. I've only tested it on PP784 and PP745 SEM Powerpaks though.
You'll need some kind of CAN <-> Serial conversion, but this can be done for less than $100 with an Arduino and SparkFun CAN Shield. I've written a pretty good CAN library for the Arduino, and have a sketch available that will read/write between serial and the CAN bus.
I'm still working on interpreting the real time data stream coming from the controller, but I'm about half way through it already. Tango's post on his EvViz program has got me motivated to get this finshed now.