I am trying to connect my Doser 2.1 slave to my P4, I have the Powerbar 5.1 connected to the first PAB port on the P4 and assigned numbers 1-5. The Doser slave is currently connected to the second PAB port on the P4, I tried to set it's numbers to 6-9 but I just get an error that the PAB device is not responding. I have also tried to chain the doser to the PAB port on the powerbar and that fails too.

What am I doing wrong??