RAL Read always returns 0

We have a RAL model in our environment. Whenever i do call the read method, it always returns 0. It also returns the value as soon as the command is driven on the bus and does not wait for the read data to come back. What are we missing

In reply to Jack Bryan:

You don’t have a channel set up in your driver to pick up responses from the bus. You drive read commands, but you don’t wait for the read data.