I feel I must be missing something silly.

I have just started setting up my slave doser to my doser 2.1, I have been following the online video for assigning a PAB unit and all seemed to be going well, I have got to a point where the slave has been assigned and shows up in the system settings, the Tab shows the slave as a PAB-Device running version 1.24 and a PAB address of 18, my issue is when I go to configure this pump I get a message saying the PAB device is not responding.

Currently the slave mimics exactly what pump 1-4 doses.

It so happens that I am setting up two identical units and they are both at the same state.

Hope you can point me in the right direction.

Thanks Vince