Thank you for your reply.
I have already tested the FMB640 connected directly to the FMS simulator and that works fine.
However I need to install the device in a truck that does not have an FMS port, hence I need to use an AllCan300. At the moment I don't have access to the truck to validate the setup FMB640+AllCan, is there any way I can test this setup with an FMS simulator?