Hi VL400 Looking at the VS_Mode1 file in details it looks like that one really only needs Message 0 as it has all of the information in it. Message 1,2,3 just seems to have duplicated info Was this what you found in your coding experiments? Also with the WORD is it LSB MSB or MSB LSB when one is doi...

Thanks for that. I wondered about some of the redundant fields.
Dave

Hi VL400 Many thanks for the information. I am still understanding how VLDL works. If I can ask a few quick pointers. Re Mode 1.. Is it a Ask and Response system i.e. I want Mode 1, Message 5 Sent Mode 1 Message 5 Frame or a I want mode 1 Send Mode 1, message 1, 2, 3, 4, 5, ect Part of my work is pr...

Hi.
I have a VS Ecotec automatic. Where can I find a list of the Mode 1 frames so I can experiment with decoding them myself. I am more interested in seeing what is happening rather than changing specs.

Many thanks
Dave